Manual D-Link DSN-6410

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  • D-Link DSN-6410 - page 1

    1 D-Link iSCSI IP SAN storage 10GbE iSCSI to SA T A II / SAS RAID IP SAN storage DSN-6410 & DSN-6420 User Manual Version 1.0 ...

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    2 Preface Copyright Copyright@2011, D-Link Corporation. All rights reserved. No part of this manual m ay be reproduced or transmitted without written permission fr om D-Link corporation. Trademarks All products and trade names use d in this ma nual are trademarks or registered trademarks of their respective companies. About this manual This manual ...

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    3 Table of Contents Chapter 1  Overview .................................................................. 6  1.1  Features ......................................................................................... 6  1.1.1  Highlights .................................................................................................... ...

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    4 4.4.1  Physical disk ........................................................................................................... 54  4.4.2  RAID group ............................................................................................................ 57  4.4.3  Virtual disk ................................................. ...

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    5 6.2  Event notifications ..................................................................... 125  Appendix 133  A.  Certification list .......................................................................... 133  B.  Microsoft iSCSI initiator .............................................................. 136 C. From Single c ...

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    6 Chapter 1 Overview 1.1 Features D-LINK DSN-6000 series IP SAN storage provides no n-stop service with a high degree of fault tolerance by usi ng D-LINK RAID technolog y and advanced array manageme nt features. DSN-6410/6420 IP SAN storage connects to the host system by iSCSI interface. It can be configured to numerous RAID level . The IP SAN stor ...

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    7  D-LINK DSN-6410/6420 feature highlights Host Interface 4 x 10GbE iSCSI ports (DSN-6420) 2 x 10GbE iSCSI ports (DSN-6410) Drive Interface 12 x SAS or SATA II RAID Controllers Dual-active RAID controllers (DSN-6420) Single controller, but ca n be upgradable to dual (DSN-6410) Scalability SAS JBOD expansion port Green Auto disk spin-down Advance ...

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    8 RAID is the abbreviation of “R edundant A rray of I ndependent D isks ” . The basic idea of RAID is to combine multiple dr ives together to form one la rge logical drive. This R AID drive obtains performance, capacity and relia bility than a single drive. The operating system detects the RAID drive as a single storage device. 1.2.1 Terminolog ...

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    9 in cache and actual writing to non-volatile media occurs at a later time. It speeds up system write perf ormance but needs to bear the risk where data may be i nconsistent between data cache and the physic al disks in one sh ort time interval. RO Set the volume to be R ead- O nly. DS D edicated S pare disks. The spare disk s are only us ed by one ...

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    10 MTU M aximum T ransmission U nit. CHAP C hallenge H andshake A uthentication P rotocol. An optional security mechanism to control access to an iSCSI storage system over the iSCSI data ports. iSNS I nternet S torage N ame S ervice.  Part 3: Dual controller SBB S torage B ridge B ay. The objectiv e of the Storage Bridge Bay Working Group (SBB) ...

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    11 four hard drives. RAID 10 Striping over the member RAID 1 volumes. RAID 10 needs at least four hard drives. RAID 30 Striping over the member RAID 3 vo lumes. RAID 30 n eeds at least six hard drives. RAID 50 Striping over the member RAID 5 vo lumes. RAID 50 n eeds at least six hard drives. RAID 60 Striping over the member RAID 6 volumes. RAID 60 ...

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    12 1.3 iSCSI concepts iSCSI (Internet SCSI) is a pr otocol which encapsulates SCSI (S mall Computer System Interface) commands and data in TCP/IP packets for link ing storage devices with servers over common IP infrastructures. iSCSI provides high perfor mance SANs over standard IP networks like LAN, WAN or the Internet. IP SANs are true SANs (Stor ...

  • D-Link DSN-6410 - page 13

    13 Hardware iSCSI HBA(s) provide its own initiator tool. Please refer to the vendors’ HBA user manual. Microsoft, Linux, Solaris and Mac provide iSCSI initia tor dr iver. Please contact D- LINK for the latest certification list . Below are the available links: 1. Link to download the Microsof t iSCSI software init iator: http://www.microsoft.com/ ...

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    14  The management port can be transferred smoothly to the other controller with the same IP address 6. Online firmware upgrade, no system down ti me (only for DSN-6420) 7. Multiple target iSCSI no des per controller support  Each LUN can be attached to one of 32 nodes from each controller 8. Front-end 2 x 10GbE iSCSI port s with high availab ...

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    15 5. Instant volume configuration restoration 6. Smart faulty sector relocation 7. Hot pluggable battery backup module suppo rt  Enclosure monitoring 1. S.E.S. inband manage ment 2. UPS management via dedicated serial port 3. Fan speed monitors 4. Redundant power supply monitor s 5. Voltage monitors 6. Thermal sensors for both RA ID controller ...

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    16  Windows  Linux  Solaris  Mac  Drive support 1. SAS 2. SATA II (optional) 3. SCSI-3 compliant 4. Multiple IO transaction processing 5. Tagged command queuing 6. Disk au to spi n- down su ppor t 7. S.M.A.R.T. for SATA II drives 8. SAS JBODs expansion  Power and Environment  AC input: 100-240V ~ 7A-4A 500W with PFC (Auto Switc ...

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    17 (EN55022 / EN55024) UL statement FCC statement This device has been shown to be in compliance with an d was tested in accordance with the measurement procedures specified in th e Standards and Specifications listed below and as indicated in the me asurement report number: xxxxxxxx-F Technical Standard: FCC Part 15 Class A (Verification) IC ICES- ...

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    18 The ITE is not intended to be installed and used in a ho me, school or public area accessible to the general population, and the t humbscrews should be tightened with a tool after both initial installation an d subsequent access to the panel. Warning: Remove all power su pply cords before service This equipment intended for installa tion in rest ...

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    19 Chapter 2 Installation 2.1 Package contents The package contains the following items: 1. DSN-6410/6420 IP SAN storage (x1) 2. HDD trays (x12) 3. Power cords (x4) 4. RS-232 cables (x2), one is for co nsole, the other is for UPS. 5. CD (x1) 6. Rail kit (x1 set) 7. Keys, screws for drives and rail kit (x1 packet) 8. SFP and 5 Meter cable 2.2 Before ...

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    20 The drives can b e installed into any slot in the enclosure. Slot numbering will be reflected in web UI. Tips It is advisable to install at least on e drive in slots 1 ~ 4. System event lo g s are saved to drives in these slots; If no drives are fitted the event lo g s will be lost in the event of a system reboot. 2.3.2 Front LED lights There ar ...

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    21 2.3.3 Install drives Note : Skip this section if you purcha sed a solution populated with drives. To install SAS or SATA drives with no Bri dge Board use t he front mounting holes: To install SATA drives with Bridge Bo ard (DSN-654), fit the Bridge Board first Then install the drive using the rear mounting holes: ...

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    22 Figure 2.3.3.3  HDD tray description:  HDD power LED:  Green  HDD is inse rted and good.  Off  No HDD.  HDD access LED:  Blue blinking  HDD is accessing.  Off  No HDD.  HDD tray handhold.  Latch for tray kit removal. 2.3.4 Rear view Figure 2.3.4.1 (DSN-6420 SFP+)  PSU and Fan module description:   ...

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    23  Controller 2. (only on DSN-6420 )  Controller 1.  Power supply unit (PSU1).  Fan module (FAN1 / FAN2).  Power supply unit (PSU2).  Fan module (FAN3 / FAN4). ...

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    24 Figure 2.3.4.3 (DSN-6410 SFP+)  Connector, LED and button description:  10GbE ports (x2). Link LED:  Orange  A s s e r t e d w h e n a 1 G l i n k i s e s t a b l i s h e d a n d maintained.  Blue  Asserted when a 10G link is establish and maintained. Access LED:  Yellow  A s s e r t e d w h e n t h e l i n k i s e s t a ...

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    25  BBM Status Button:  When the system power is off, press the BBM status butto n, if the BBM LED is Green, then the BBM still has power t o keep data on the ca che. If not, then the BBM power is ran out and cannot keep the data on the cache anymore.  Management port.  Console port.  RS 232 port for UPS.  SAS JBOD expansion port. ...

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    26 2.5 Deployment Please refer to the followi ng topology and have al l the connections ready. Figure 2.5.1 (DSN-6420) Figure 2.5.2 (DSN-6410) 1. Setup the hardware connection before powe r on servers. Connect console cable, management port cable, and iSCSI data port cables in advance. ...

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    27 2. In addition, installing an iSNS server is recommended for dual controller system. 3. Power on DSN-6420/6410 and DSN-6020 (optional) first, and then power on hosts and iSNS server. 4. Host server is suggested to logon the target twice (both co ntroller 1 and controller 2), and then MPIO should be setup automatically. (only for DSN-6420) Tips i ...

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    28 Figure 2.5.4 1. Using RS-232 cable for consol e (back color, phone jack to DB9 female) to connect from controller to management PC directly. 2. Using RS-232 cable for UPS (gray color, ph one jack to DB9 male ) to connect from controller to APC Smart UPS serial cable (DB9 female side), and then connect the serial cable to APC Smart UPS. Caution I ...

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    29 Chapter 3 Quick setup 3.1 Management interfaces There are three manageme nt methods to manage D-LINK IP SAN storage, describe in the following: 3.1.1 Serial console Use console cable (NULL modem cable) to connect from console port of D-LINK IP SAN storage to RS 232 port of management PC. Pl ease refer to figure 2.3.1. The console settings are on ...

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    30 3.1.3 Web UI D-LINK IP SAN storage supports graphic user i n terface (GUI) to oper a t e . B e s u r e t o connect the LAN cable. Th e default IP setting is DHCP ; open the browser and enter: http://192.168.0.32 And then it will pop up a dialog for authentication. Figure 3.1.4.1 User name: admin Default password: 123456 After login, choose the f ...

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    31  Indicator description: RAID light:  Green  RAID works well.  Red  RAID fails. Temperature light:  Green  Temperature is normal.  Red  Temperature is abnormal. Voltage light:  Green  voltage is normal.  Red  voltage is abnormal. UPS light:  Green  UPS works well.  Red  UPS fails. Fan light:  ...

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    32 Mute alarm beeper. Tips I f t h e s t a t u s i n d i c a t o r s i n I n t e r n e t E x p l o r e r ( I E ) a r e d i s p l a y e d i n g ray, but not in blinking re d, please enable “Internet Options”  “Advanced”  “Play animations in webpages” option s in IE. The default value is enabled, but some applic ations will disable ...

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    33 Figure 3.2.1.2 Step2: Confirm the management port IP a ddress and DNS, and then click “Next” . Figure 3.2.1.3 Step 3: Set up the data port IP a nd click “Next” . ...

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    34 Figure 3.2.1.4 Step 4: Set up the RAID level and volume size and click “Next” . Figure 3.2.1.5 Step 5: Check all items, and clic k “Finish” . ...

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    35 Figure 3.2.1.6 Step 6: Done. 3.2.2 Volume creation wizard “Volume create wizard” has a smarter policy. When the system is inserted with some HDDs. “Volume create wizard” lists all possibilitie s and sizes in differen t RAID levels, it will use all available HDDs for RAID level depends on which user choose s. When system has different siz ...

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    36 Figure 3.2.2.1 Step 2: Please select the combination of the RG capacity, or “Use default algorithm” for maximum RG capacity. Afte r RG size is c hosen, click “Next” . Figure 3.2.2.2 ...

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    37 Step 3: Decide VD size. User can enter a numbe r less or e qual to the default number . Then click “Next” . Figure 3.2.2.3 Step 4: Confirmation page . Click “Finish” if all setups are corr ect. Then a VD will be created. Step 5: Done. The system is available now. Figure 3.2.2.4 (Figure 3.2.2.4: A virtual disk of RAID 0 is created and is ...

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    38 Chapter 4 Configuration 4.1 Web UI management interface hierarchy The below table is the hierarchy of web GUI. System configuration System setting  System name / Date and time / System i ndication Network setting  MAC address / Address / DNS / Port Login setting  Login configuration / Admin password / User password Mail setting  Mail ...

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    39 Maintenance System information  System information Event log  Download / Mute / Clear Upgrade  Browse the firmware to upgrade Firmware synchronization  Synchronize the slave controller’s firmware version with the master’s Reset to factory default  Sure to reset to factory default? Import and export Import/Export / Import file ...

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    40 Figure 4.2.1.1 Check “Change date an d time” to set up the cu rrent date, time, an d time zone before using or synchronize time from NTP (N etwork T ime Protocol) server. Click “Confirm” in System indication to turn on the system i ndication LED. Click a gain to turn off. 4.2.2 Network setting “Network setting” i s f o r c h a n g i ...

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    41 Figure 4.2.2.1 4.2.3 Login setting “Login setting” can set single admin, auto logou t time and ad min / user password. The single admin is to prevent multiple users access the same system in the same time. 1. Auto logout: The options are (1 ) Disabled; (2) 5 minutes; (3) 30 minutes; (4) 1 hour. The system will log out automatically when user ...

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    42 Figure 4.2.3.1 Check “Change admin password” or “Change user password” t o c h a n g e a d m i n o r user password. The maximum length of password is 12 characters. 4.2.4 Mail setting “Mail setting” can enter 3 mail addresses for receivi ng the event notifi cation. Some mail servers would check “Mail-from address” and need authen ...

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    43 Figure 4.2.4.1 4.2.5 Notification setting “Notification setting” can set up SNMP trap for alerti ng via SNMP, pop-up message via Windows messenger (not MSN), alert via syslog protocol, and event log filter for web UI and LCM notifications. ...

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    44 Figure 4.2.5.1 “SNMP” a l l o w s u p t o 3 S N M P t r a p a d d r e s s e s . D e fault community setting is “public”. User can choose the event log leve ls and default setting enab les ERROR and WARNING event log in SNMP. There are many SNMP tools. Th e following web sites are for your reference: SNMPc: http://www.snmpc.com/ Net-SNMP: ...

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    45 Most UNIX systems build in syslog daemon. “Event log filter” setting can enable even t log display on “Pop up events” and “LCM”. 4.3 iSCSI configuration “iSCSI configuration” is designed for setting up the “Entity Property” , “NIC” , “Node” , “Session” , and “CHAP account” . Figure 4.3.1 4.3.1 NIC “NIC” ca ...

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    46 Figure 4.3.1.2  Default gateway: Default gateway can be changed by checkin g the gray button of LAN port, click “Become default gateway” . There can be only one default gat eway.  MTU / Jumbo frame: MTU ( M aximum T ransmission U nit) size can be enabled by checking the gray button of LAN port, click “Enable jumbo f rame” . Maximum ...

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    47 LACP packets to the peer. Th e advantages of LACP are (1 ) increases the bandwidth. (2) failover when link st atus fails on a port. Trunking / LACP setting can be change d by clicking the button “Aggregation” . Figure 4.3.1.3 (Figure 4.3.1.3: There are 2 iSCSI data ports on ea ch controller, select at least two NICs for link aggregation.) Fi ...

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    48 Figure 4.3.1.5 (Figure 4.3.1.5 shows a user can ping host from the target to make sure the data port connection is well.) 4.3.2 Entity property “Entity property” can view the entity name of the system, and setup “iSNS IP” for iSNS (Internet Storage Name Service). iS NS protocol allows automated discovery, management and conf iguration of ...

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    49 Figure 4.3.3.1  CHAP: CHAP is the abbreviation of C hallenge H andshake A uthentication P rotoc ol. CHAP is a strong authentication method used in point-to -point for user l ogin. It’s a type of authentication in which the au thentication server sends the client a key to be used for encrypting the username and password. CHAP enables the use ...

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    50 Figure 4.3.3.3 5. Go to “/ iSCSI configuration / CHAP account” page to create CHAP account. Please refer to next section for more detail. 6. Check the gray button of “OP.” column, click “User” . 7. Select CHAP user(s) which will be used. It’s a multi option ; it can be one or more. If choosing none, CHAP can not work. Figure 4.3.3. ...

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    51  Rename alias: User can create an alias to one device node. 1. Check the gray button of “OP.” column next to one device node. 2. Select “Rename alias” . 3. Create an alias for that device node. 4. Click “OK” to confirm. 5. An alias appears at the end of that device node. Figure 4.3.3.6 Figure 4.3.3.7 Tips After setting CHAP, the i ...

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    52 8. DataSeginOrder(Data Sequence in Order) 9. DataPDUInOrder(Dat a PDU in Order) 10. Detail of Authentication status and Source IP: port number. Figure 4.3.4.1 (Figure 4.3.4.1: iSCSI Session.) Check the gray button of session number, click “List connection” . It can list all connection(s) of the session. Figure 4.3.4.2 (Figure 4.3.4.2: iSCSI ...

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    53 Figure 4.3.5.1 3. Click “OK” . Figure 4.3.5.2 4. Click “Delete” to delete CHAP account. 4.4 Volume configuration “Volume configuration” is designed for setting up the volume configuratio n which includes “Physical disk” , “RAID group” , “Virtual disk” , “Snapshot” , “Logical unit” , and “Replication” . Figure ...

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    54 4.4.1 Physical disk “Physical disk” can view the status of hard drives in the sy stem. The followings are operational steps: 1. Check the gray button next to the number of slot, it will show the functions which can be executed. 2. Active function can be sel ected, and inactive functions show up in gray c olor and cannot be selected. For exam ...

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    55 Figure 4.4.1.3 (Figure 4.4.1.3: Physical disks in slot 1,2,3 are created for a RG named “RG-R5”. Slot 4 is set as dedicated spare disk of the RG named “RG-R5”. The others are free d isks.) Step 4: The unit of size can be chan ged from (GB) to (MB). It w ill display the capacity of hard drive in MB. Figure 4.4.1.4  PD column descriptio ...

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    56  “Failed”  the hard drive is failed.  “Error Alert”  S.M.A.R.T. error alert.  “Read Errors”  the hard drive has unrecoverable read errors. Usage The usage of hard drive:  “RAID disk”  This hard drive has b een s et to a RAID group.  “Free disk”  This hard drive is free for use.  “Dedicated s ...

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    57 Set Dedicated spares Set a hard drive to dedicate d spare of the selected RG. Upgrade Upgrade hard drive firmware. Disk Scrub Scrub the hard drive. Turn on/off the indication LED Turn on the indication LED of the har d drive. Click again to turn off. More information Show hard drive de tail information. 4.4.2 RAID group “RAID group” can view ...

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    58 Step 2: Confirm page. Click “OK” if all setups are correct. Figure 4.4.2.2 (Figure 4.4.2.2: There is a RAID 0 with 4 ph ysical disks, named “RG-R0”. The second RAID group is a RAID 5 with 3 physical disks, named “RG-R5”.) Step 3: Done. View “RAID group” page.  RG column description: The button includes the func tions which can ...

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    59 Health The health of RAID gr oup:  “Good”  the RAID group is good.  “Failed”  the RAID group fa ils.  “Degraded”  the RAID gro up is not healthy and not completed. The reason could be l a c k o f d i s k ( s ) o r h a v e failed disk RAID The RAID level of the RAID group. Current owner The owner of the RAID group. T ...

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    60 property Write cache:  “Enabled”  Enable disk writ e cache. (Default)  “Disabled”  Disable disk write cache. Standby:  “Disabled”  Disable auto spin -down. (Default)  “30 sec / 1 min / 5 min / 30 min”  Enabl e hard drive auto spin-down to save power when no access after c ertain period of time. Read ahead: ...

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    61 Figure 4.4.3.1 Caution If shutdow n or reboot the system when creatin g VD, the erase process will stop. Step 2: Confirm page. Click “OK” if all setups are correct. Figure 4.4.3.2 (Figure 4.4.3.2: Create a VD named “VD-01”, from “RG-R0”. The second VD is n amed “VD-02”, it’s initializing.) Step 3: Done. View “Virtual disk” ...

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    62  VD column description: The button includes the func tions which can be executed. Name Virtual disk name. Size (GB) (MB) Total capacity of the virtual disk . The unit can be displayed in GB or MB. Write The right of virtual disk:  “WT”  W rite T hrough.  “WB”  W rite B ack.  “RO”  R ead O nly. Priority The priori ...

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    63 Clone The target name of virtual disk. Schedule The clone schedule of virtual disk: Health The health of virtual disk:  “Optimal”  the virtual disk is wo rking well and there is no failed disk in the RG.  “Degraded”  At le a st one di sk fr om th e R G o f t he Vi rtu al disk is failed or plugged out.  “Failed”  the ...

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    64 / … / 100. Delete Delete the virtual disk. Set property Change the VD name, right, prio rity, bg rate and read ahead. Right:  “WT”  W rite T hrough.  “WB”  W rite B ack. (Default)  “RO”  R ead O nly. Priority:  “HI”  HI gh priority. (Default )  “MD”  M i D dle priority.  “LO”  LO w pr ...

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    65 Stop clone Stop clone function. Schedule clone Set clone function by schedule. Set snapshot space Set snapshot space for taking sn apshot. Please refer to next chapter for more detail. Cleanup snapshot Clean all snapshots of a VD an d release the sn apshot space. Take snapshot Take a snapshot on the virtual disk. Auto snapshot Set auto snapshot ...

  • D-Link DSN-6410 - page 66

    66 Figure 4.4.4.2 (Figure 4.4.4.2: “VD-01” snapshot space has been created, snap shot space is 15GB, and us ed 1GB for saving snapshot index.) Step 3: Take a snapsh ot. In “/ Volume configuration / Snapshot” , click “Take snapshot” . It will link to next pa ge. Enter a snapshot name. Figure 4.4.4.3 Step 4: Expose the snapshot VD. Ch eck ...

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    67 Step 5: Attach a LUN t o a snapshot VD. Pl ease re fer to the next sect ion for attaching a LUN. Step 6: Done. Snapshot VD can be used .  Snapshot column description: The button includes the func tions which can be executed. Name Snapshot VD name. Used (GB) (MB) The amount of snapshot space th at has been used. The unit can be displayed in GB ...

  • D-Link DSN-6410 - page 68

    68 Delete Delete the snapshot VD. Attach Attach a LUN. Detach Detach a LUN. List LUN List attached LUN(s) . 4.4.5 Logical unit “Logical unit” can view, create, and modify the status of attached logical unit number(s) of each VD. User can attach LU N by clicking the “Attach” . “Host” must enter with an iSCSI node name for access control, ...

  • D-Link DSN-6410 - page 69

    69  LUN operation description: Attach Attach a logical unit number to a virtual disk. Detach Detach a logical unit numb er from a virtual disk. The matching rules of access co ntrol are followed from the LU N’ created time; the earlier created LUN is prior to the matching rules. For example: there ar e 2 LUN rules for the same VD, one is “*? ...

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    70 Figure 4.4.6.1 1. Select “/ Volume configuration / RAID group” . 2. Click “Create“ . 3. Input a RG Name, choose a RAID level from the list, click “Select PD“ to choose the RAID physical disks, then click “OK“ . 4. Check the setting. Click “OK“ if all setups are correct. 5. Done. A RG has been created. Figure 4.4.6.2 (Figure 4 ...

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    71 Figure 4.4.6.3 1. Select “/ Volume configuration / Virtual disk” . 2. Click “Create” . 3. Input a VD name, choose a RG Name and ente r a size for this VD; decide the stripe height, block size, read / write mode, bg rate, and set prio rity, finally click “OK” . 4. Done. A VD has been created. 5. Follow the above steps to create anothe ...

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    72 Figure 4.4.6.5 1. Select a VD. 2. Input “Host” IQN, which is a n iSCSI node name fo r access control, or fill-in wildcard “*”, which means every host can access to th is volume. Choose LUN and permission, and then click “OK” . 3. Done. Figure 4.4.6.6 Tips The matching rules of access control are from the LUNs’ created time, the ear ...

  • D-Link DSN-6410 - page 73

    73 Figure 4.4.6.7 (Figure 4.4.6.7: Slot 4 is set as a global spare disk.) Step 5: Done. Delete VDs, RG, please follow the below ste ps. Step 6: Detach a LUN from the VD. In “/ Volume configuration / Logical unit” , Figure 4.4.6.8 1. Check the gray button ne x t t o t h e L U N ; c l i c k “Detach” . There will pop up a confirmation page. 2. ...

  • D-Link DSN-6410 - page 74

    74 To delete a RAID group, pl ease follow the procedures: 1. Select “/ Volume configuration / RAID group” . 2. Select a RG which all its VD are deleted, otherwise the this RG cannot be deleted. 3. Check the gray button next to the RG number click “Delete” . 4. There will pop up a confirmatio n page, click “OK” . 5. Done. The RG has been ...

  • D-Link DSN-6410 - page 75

    75 4.5.1 Hardware mo nitor “Hardware monitor” can view the informat ion of current voltages and temperatures. Figure 4.5.1.1 ...

  • D-Link DSN-6410 - page 76

    76 If “Auto shutdown” is checked, the system will shutdo wn automatically when voltage or temperature is out of the no rmal range. For better data protection, please check “Auto Shutdown” . For better protection and avoiding single s hort period of high temper ature triggering auto shutdown, the system use multiple conditio n judgments to t ...

  • D-Link DSN-6410 - page 77

    77 Figure 4.5.2.2 (Figure 4.5.2.2: With Smart-UPS.)  UPS column description: UPS Type Select UPS Type. Choose Smart- UPS for APC, None for other vendors or no UPS. Shutdown Battery Level (%) When below the setting level, system will shutdown. Setting level to “0” will disabl e UPS. Shutdown Delay (s) If power failure occurs, and system power ...

  • D-Link DSN-6410 - page 78

    78 Battery Level (%) Current power percentage of battery level. 4.5.3 SES SES represents S CSI E nclosure S ervices, one of the enclosur e management standards. “SES configuration” can enable or disable the management of SES. Figure 4.5.3.1 (Figure 4.5.1.1: Enable SES in LUN 0, and can be accessed from every host) The SES client software is ava ...

  • D-Link DSN-6410 - page 79

    79 Figure 4.5.4.1 (SAS drives & SATA drives) 4.6 System maintenance “Maintenance” allows the operations of sy stem functions which includ e “System information” to show the system version and details, “Event lo g” to view system event logs to record critical events, “Upgrade” to the la test firmware, “Firmware synchronization? ...

  • D-Link DSN-6410 - page 80

    80  Status description: Normal Dual controllers are in normal stage. Degraded One contro ller fails or has been plugged out. Lockdown The firmware of two controllers is different or the size of memory of two controllers is different. Single Single controller mode. 4.6.2 Event lo g “Event log” can view the event messa ges. Check the checkbox ...

  • D-Link DSN-6410 - page 81

    81 The event log is displaye d in reverse order which means the latest event log is on the firs t / top page. The event lo gs are actually saved in the fi rst four hard drives; e ach hard drive has one copy of event log. For one system, there are four copi es of event logs to make sure users can check even t log any time when th ere are failed disk ...

  • D-Link DSN-6410 - page 82

    82 4.6.3 Upgrade “Upgrade” can upgrade controller fi rmware, JBOD firmware, change operation mode, and activate Replication license. Figure 4.6.3.1 Please prepare new controll er firmware file named “xxxx.bin” in local hard drive, then click “Browse” to select the file. Click “Confirm” , it will pop up a wa rning message, click “O ...

  • D-Link DSN-6410 - page 83

    83 master ones no matter what the firmware versio n of slave controller is newer or older than master. In normal status, the firmware versions in controller 1 and 2 are the same as below figure. Figure 4.6.4.1 4.6.5 Reset to factory default “Reset to factory default” allows user to reset IP SAN st orage to factory default setting. Figure 4.6.5. ...

  • D-Link DSN-6410 - page 84

    84 1. Import: Import all system configurati ons excluding volume configurati on. 2. Export: Export all configurations to a file. Caution “Import” will import all system confi g urations excludin g volume configuration; the current configurations will be replaced. 4.6.7 Reboot and shutdown “Reboot and shutdown” can “Reboot” and “Shutdo ...

  • D-Link DSN-6410 - page 85

    85 For security reason, please use “Logout” to exit the web UI. To re-login the system, please enter username and password again. 4.7.3 Mute Click “Mute” to stop the alarm when error occurs. ...

  • D-Link DSN-6410 - page 86

    86 Chapter 5 Advanced operations 5.1 Volume rebuild If one physical disk of the RG whi ch is set as protected RAID level (e .g.: RAID 3, RAID 5, or RAID 6) is FAILE D or has been unplugged / remove d, then t h e s ta tu s of RG is ch an ge d to degraded mode, the system will search/detect spare disk to rebuild the degraded RG t o a complete one. It ...

  • D-Link DSN-6410 - page 87

    87  Rebuild operation description: RAID 0 Disk striping. No protection for da t a . R G f a i l s i f a n y h a r d d r i v e fails or unplugs. RAID 1 D is k m i rr o r i n g ov e r 2 d is k s . R AI D 1 a l l ow s o n e ha r d d r iv e f a i ls o r unplugging. Need one new har d dr ive to insert to th e system and rebuild to be completed. N-way ...

  • D-Link DSN-6410 - page 88

    88 5.2 RG migration To migrate the RAID l evel, pl ease follow below procedures. 1. Select “/ Volume configuration / RAID group” . 2. Check the gray button next to the RG number; click “Migrate” . 3. Change the RAID level by c licking the down arrow to “RAID 5” . There will be a pup- up which indicates that HDD is not enough to suppo rt ...

  • D-Link DSN-6410 - page 89

    89 5.3 VD extension To extend VD size, plea se follow the procedures. 1. Select “/ Volume configuration / Virtual disk” . 2. Check the gray button next to the VD number; click “Extend” . 3. Change the size. The size must be larg er than the original, and then click “OK” to start extension. Figure 5.3.1 4. Extension starts. If VD needs i ...

  • D-Link DSN-6410 - page 90

    90 any unfortunate reason it migh t be (e.g. virus attack, data corruption, huma n errors and so on). Snap VD is allocated within the sa m e R G i n w h i c h t h e s n a p s h o t i s t a k e n , w e suggest to reserve 20% of RG size or more for snapshot space. Please refer to the following figure for snapshot concept. Figure 5.4.1 5.4.1 Create sn ...

  • D-Link DSN-6410 - page 91

    91 Figure 5.4.1.1 7. Check the gray button next to the Snapshot VD number; click “Expose” . Enter a capacity for snapshot VD. If size is zero , the exposed snapshot VD is read only. Otherwise, the exposed snapsh o t V D c a n b e r e a d / w r i t t e n , a n d t h e s i z e i s t h e maximum capacity for writing. 8. Attach a LUN to the snapsho ...

  • D-Link DSN-6410 - page 92

    92 Figure 5.4.2.1 (Figure 5.4.2.1: It will take snapshots every month, and keep the last 32 snapshot copies.) Tips Daily snapshot will be ta ken at every 00:00. Weekly snapshot will be taken every Sunday 00:00. Monthly snapshot will be take n every first day of month 00:00. 5.4.3 Rollback The data in snapshot VD ca n rollback to origina l VD. Pleas ...

  • D-Link DSN-6410 - page 93

    93 5.4.4 Snapshot constr aint D-LINK snapshot function applie s Copy -on-Write technique on UDV/VD and provides a quick and efficient backup meth odology. When taking a snapshot, it does not copy a ny data at first time until a request of data mo dification comes in. Th e snapshot copies the original data to snapshot spa ce and then overwrites the ...

  • D-Link DSN-6410 - page 94

    94 On Linux and UNIX platform, a command named sync can be used to make the operating system flush data from write caching into disk. For Windows platform, Microsoft a lso provides a tool – sync , which can do exactly the same thing as the sync command in Linux/UNIX. It will tell the OS to flush the data o n de mand. For more detail about sync to ...

  • D-Link DSN-6410 - page 95

    95 When a snapshot has b een rollbacked, the othe r snapshots which are earlier than it will also be removed. But the rest snapshots will be kept after rollback . If a snapshot has been deleted, the other snapshots which are earlier than it will also be deleted. The s pace occupied by these snapshots wi ll be released after deleting. 5.5 Disk roami ...

  • D-Link DSN-6410 - page 96

    96 Figure 5.6.1 2. Create two virtual disks (VD) “SourceVD_R5” and “TargetVD_R6”. The raid type of backup target needs to be set as “BACKUP” . Figure 5.6.2 3. Here are the objects, a Source VD and a Target VD. Before starting clone process, it needs to deploy the VD Clone rule first. Click “Configuration” . Figure 5.6.3 4. There are ...

  • D-Link DSN-6410 - page 97

    97 Figure 5.6.4  Snapshot space: Figure 5.6.5 T h i s s e t t i n g i s t h e r a t i o o f s o u r c e V D a n d s n a p s h o t s p a c e . T h e d e f a u l t r a t i o i s 2 t o 1 . It means when the clone proc ess is starting, the system will automatically use the free RG space to create a snapshot space which capacity is do uble the source ...

  • D-Link DSN-6410 - page 98

    98  Restart the task an hour later if faile d: (The setting will be effective after enabling schedule clone) Figure 5.6.7 When running out of snapshot s pace, the VD clone pro cess will be stopped because there is no more available snapshot space. If this option has been checked, system will clear the snapshots of cl one in order to release snap ...

  • D-Link DSN-6410 - page 99

    99 Figure 5.6.9 7. Now, the clone target “Tar getVD_R6” has been set. Figure 5.6.10 8. Click “Start clone” , the clone process will start. Figure 5.6.11 9. The default setting will create a snapshot space automatically wh ich the capacity is double size of the VD space. Before starting clone, syst em will initiate the snapshot space. ...

  • D-Link DSN-6410 - page 100

    100 Figure 5.6.12 10. After initiating the snapshot sp ace, it will start cloning. Figure 5.6.13 11. Click “Schedule clone” to set up the cl one by schedule. Figure 5.6.14 12. There are “Set Clone schedule” and “Clear Clone schedule” in this page. Please remember that “Threshold” and “Restart the task an hour later if failed” op ...

  • D-Link DSN-6410 - page 101

    101 Figure 5.6.15  Run out of snapshot space while VD clone While the clone is processing, the increment data of this VD is over th e snapshot space. The clone will complete, but the clone snapshot will fail. Next time, when trying to start clone, it will get a w arning message “This is not enough of snapshot space for the operation”. At thi ...

  • D-Link DSN-6410 - page 102

    102 Figure 5.6.16 ...

  • D-Link DSN-6410 - page 103

    103 5.7 SAS JBOD expansion 5.7.1 Connecting JBOD D-LINK controller suports SAS JBOD expansion to connect extra SAS dual JBOD controller. When connecting to a dual JB OD which can be detected, it will be displayed in “Show PD for:” of “/ Volume configuration / Physical disk” . For example, Local, JBOD 1 ( D- LINK DSN-6020 ), JBOD 2 ( D-LINK ...

  • D-Link DSN-6410 - page 104

    104 Figure 5.7.1.2 Figure 5.7.1.3 “/ Enclosure management / S.M.A.R.T.” can display S.M.A. R.T. information of all PDs , including Local an d all SAS JBODs. Figure 5.7.1.4 (Figure 5.7.1.4: Disk S.M.A.R.T. information of JB OD 1, alt hough S.M.A.R.T. supports SATA disk only.) ...

  • D-Link DSN-6410 - page 105

    105 SAS JBOD expansion has some constrai nts as described in the followings: 1 User could create RAID group among multiple chassis, max numb er of disks in a single RAID group is 32. 2 Global spare disk can support all RAID groups which locate d in the different chassis. 3 When support SATA drives for the redund ant JBOD model, the bridge boar d is ...

  • D-Link DSN-6410 - page 106

    106 5.8 MPIO and MC/S These features come from iSCSi initiator. They ca n be setup from iSCSI initiator to establish redundant paths f or sending I/ O from the initiator to the target. 1. MPIO: In Microsoft Windows server base sy stem, Microsoft MPIO driver allows initiators to login multiple sessions to th e same tar get and ag gregate the duplica ...

  • D-Link DSN-6410 - page 107

    107 Figure 5.8.2 Difference: MC/S is implemented on iSCSI level, while MPIO is implemented on the higher level. Hence, all MPIO infrastructures are shared among all SCSI tr ansports, including Fiber Channel, SAS, etc. MPIO is the most common usage across all OS vendor s. The primary difference between these two is which level the redundancy is main ...

  • D-Link DSN-6410 - page 108

    108 5.9 Trunking and LACP Link aggregation is the techni que of taking several distinct Ethernet links to let them appear as a single link. It ha s a larger bandwidth and pro vid es the fault tolerance ability. Beside the advantage of wide bandwidt h, the I/O traffic remains op erating until all physical links fail. If any link is r estored, it wil ...

  • D-Link DSN-6410 - page 109

    109 Figure 5.9.2 Caution Before usin g trunkin g or LACP, he g i g abit switch must support trunk in g or LACP and enabled. Otherwis e, host can not connect the li nk with stor a g e device. 5.10 Dual controllers (only for DSN-6420) 5.10.1 Perform I/O Please refer to the following topology and have all the conn ections ready. To perform I/O on dual ...

  • D-Link DSN-6410 - page 110

    110 Figure 5.10.1.1 5.10.2 Ownership When creating RG, it will be assigned with a prefered owner, the default owner is controller 1. To change the RG owne rship, please fo llo w the procedures. 1 Select “/ Volume configuration / RAID group” . 2 Check the gray button next to the RG name; click “Set preferred owner” . 3 The ownership of the R ...

  • D-Link DSN-6410 - page 111

    111 Figure 5.10.2.2 (Figure 5.10.2.2: The RG ownership is changed to the other controller.) 5.10.3 Controller status There are four statuses described on the following. It can be found in “/ System maintenance / System information” . 1. Normal: Dual controller mode. Both of controllers are functio nal. 2. Degraded: Dual controller mode. When on ...

  • D-Link DSN-6410 - page 112

    112 5.11 Replication Replication function will help users to replicate data easily through LAN or WAN from one IP SAN storage to another. The procedures of Replicat ion are on the following: 1. Copy all data from source VD to t arg et VD at the begi nning (ful l copy). 2. Use Snapshot technology to perform the incremental copy afterwards. Please be ...

  • D-Link DSN-6410 - page 113

    113 3. If you want the replication port to be on s pec ial V LAN s ect ion, you may assign VLAN ID to the replication port. The setting will auto matically duplicate to the other c ontroller.  Create backup virtual disk on the target IP SAN storage 1. Before creating the replication job on the so urce IP SAN storage, user has to create a virtual ...

  • D-Link DSN-6410 - page 114

    114 Figure 5.11.4  Create replication job on the source IP SAN storage 1. If the license key is activated on the IP SAN storag e correctly, a new Replication tab will be added on the Web UI. Click “Create” to create a new replication job. Figure 5.11.5 2. Select the source virtual disk which will be replicated to th e target IP SAN storage a ...

  • D-Link DSN-6410 - page 115

    115 Figure 5.11.7 4. The Replication uses standard iSCSI protocol for data replication. User has to log o n the iSCSI node to create th e iSCSI connection for the da ta transmission. Enter the CHAP information if necessary and select the target node to log no. Click “Next” to continue. Figure 5.11.8 5. Choose the backup virtual disk and click ? ...

  • D-Link DSN-6410 - page 116

    116 Figure 5.11.9 6. A new replication job is created and listed on the Replication page. Figure 5.11.10  Run the replication job 1. Click the “OP.” button on the replication jo b to open operation menu. Click “Start” to run the replication job. Figure 5.11.11 2. Click “Start” again to confirm the execution of th e replication job. ...

  • D-Link DSN-6410 - page 117

    117 Figure 5.11.12 3. User can monitor the replication job from the “Status” information and the progress is expressed by percentage. Figure 5.11.13  Create multi-path on the replication job 1. Click the “Create multi-path” in the operation menu of t he replication job. Figure 5.11.14 2. Enter the IP of iSCSI port on contro ller 2 of the ...

  • D-Link DSN-6410 - page 118

    118 Figure 5.11.15 3. Select the iSCSI node to log on and click “Next” . Figure 5.11.16 4. Choose the same target virtual disk and click “Next” . ...

  • D-Link DSN-6410 - page 119

    119 Figure 5.11.17 5. A new target will be added in this re plication job as a redundancy path. Figure 5.11.18  Configure the replication job to run by schedule 1. Click “Schedule” in the operation menu of the replication job. Figure 5.11.19 ...

  • D-Link DSN-6410 - page 120

    120 2. The replication job can be scheduled to run by hour , by day, by week or by month. The execution time can be co nfigurable per user’s need. If the scheduled time of execution is arrived but the pervious repl ication job is stilling going, the scheduled execution will be ignored once. Figure 5.11.20  Configure the snapshot space The Repl ...

  • D-Link DSN-6410 - page 121

    121 Figure 5.11.21 There are three settings in the Replication configuration menu, Figure 5.11.22 “Snapshot space” specifies the ratio of snapshot space allocate d to the source virtual disk automatically when the snap shot space is not configured in advance. The default ratio is 2 to 1. It means when the replicatio n job is c reating, the IP S ...

  • D-Link DSN-6410 - page 122

    122 5.12 VLAN VLAN (Virtual Local Area Network) is a lo gical grouping mechanism implemented on switch device using software rather than a hardware solution. VLAN s are collections of switching ports that comp rise a single broadcast domain. It allows network traffic to flow more efficiently within these logical subgrou ps. Please consult your netw ...

  • D-Link DSN-6410 - page 123

    123 Figure 5.12.2 4. VLAN ID 66 for LAN2 is set properly. Figure 5.12.3  Assign VLAN ID to LAG(Trunking or LACP) 1. After creating LAG, press “OP” button next to the LAG, and sel ect “Set VLAN ID”. Figure 5.12.4 2. Put in the VLAN ID and click ok. VL AN ID of LAG 0 is properly set. ...

  • D-Link DSN-6410 - page 124

    124 Figure 5.12.5 3. If iSCSI ports are assigned with VLAN ID before creati ng aggregation takes place , aggregation will remove VLAN ID. You need to repeat step 1 and st ep 2 to set VLAN ID for the aggregation group.  Assign VLAN ID to replication port Please consult figure 5.11.3 of 5. 11 Replication section for details.  Always make sure c ...

  • D-Link DSN-6410 - page 125

    125 Chapter 6 Troubleshooting 6.1 System buzzer The system buzzer features are listed below: 1. The system buzzer alarms 1 second when system boots up successfully. 2. The system buzzer alarms conti nuously wh en there is error o ccurred. The alarm will be stopped after error resolved or be muted. 3. The alarm will be muted automatically when the e ...

  • D-Link DSN-6410 - page 126

    126 ERROR SATA PRD mem fail Failed to init SATA PRD memory manager ERROR SATA revision id fail Failed to get SATA revi sion id ERROR SATA set reg fail Failed to set SATA register ERROR SATA init fail Core failed to initialize the SATA adapter ERROR SATA diag fail SATA Adapter diagnostics failed ERROR Mode ID fail SATA Mode ID failed ERROR SATA chip ...

  • D-Link DSN-6410 - page 127

    127  RMS events Level Type Description INFO Console Login <username> login from <IP or serial console> via Co nsole UI INFO Console Logout <username> logout from <IP or serial console> via Console UI INFO Web Login <username> login from <IP> via Web UI INFO Web Logout <username> logout from <IP> vi ...

  • D-Link DSN-6410 - page 128

    128 ERROR VD move failed Failed to complete move of VD <name>. INFO RG activated RG <name> has been manually activated. INFO RG deactivated RG <name> ha s been manually deactivated. INFO VD rewrite started Rewrite at LBA <address> of VD <name> starts. INFO VD rewrite finished Rewrite at LBA <a ddress> of VD <n ...

  • D-Link DSN-6410 - page 129

    129 INFO VD erase started VD <name> starts erasing process.  Snapshot events Level Type Description WARNING Snap mem Failed to allocate sn apshot memory for VD <name>. WARNING Snap space overflow Failed to allocate snapshot space f or VD <name>. WARNING Snap threshold The snapshot space th resh old of VD <name> has been r ...

  • D-Link DSN-6410 - page 130

    130 INFO PD upgrade started JBOD <name> PD [<string>] starts up grading firmware process. INFO PD upgrade finished JBOD <name> PD [<string>] finished upgrading firmware process. WARNING PD upgrade failed JBOD <name> PD [<string>] upgrade firmware failed. INFO PD freed JBOD <name> PD <slot> has been fr ...

  • D-Link DSN-6410 - page 131

    131  System maintenance events Level Type Description INFO System shutdown System shutdown. INFO System reboot System reboot. INFO System console shutdown System shutdown from <string> via Console UI INFO System web shutdown System shutdown from <string> via Web UI INFO System button shutdown System shutdown via power button INFO Sys ...

  • D-Link DSN-6410 - page 132

    132 Level Type Description INFO VD clone started VD <name> starts cloning process. INFO VD clone finished VD <name> finished cloning process. WARNING VD clone failed The cloning in VD <name> failed. INFO VD clone aborted The cloning in VD <name> was aborted. INFO VD clone set The clone of VD <name> has been designated. ...

  • D-Link DSN-6410 - page 133

    133 Appendix A. Certification list  iSCSI Initiator (Software) OS Software/Release Number Microsoft Windows Microsoft iSCSI Software Initiator Release v2.08 System Requirements: 1. Windows 2000 Server with SP4 2. Windows Server 2003 with SP2 3. Windows Server 2008 with SP2 Linux The iSCSI Initiators are different for different Linux Kernels. 1. ...

  • D-Link DSN-6410 - page 134

    134 D-Link All D-Link Mana ged Gigabit Switches Avago AFBR-703SDZ (10 Gb/s SFP transceiver, 850nm) Finisar FTLX8571D3BCV (10 Gb/s SFP tran sceiver, 850nm)  10GbE Switch Vendor Model Dell PowerConnect 8024F (24x SFP+ 10Gb with 4x Combo Ports of 10GBASE-T) HP ProCurve 2910al-24G J9145A (4x 10GbE J9149A CX4 Ports, 24x 10/100/1000 Ports) BLADE RackS ...

  • D-Link DSN-6410 - page 135

    135 Vendor Model Hitachi Deskstar 7K250, HDS722580VLSA80, 80GB, 7200RPM, SA TA , 8M Hitachi Deskstar E7K500, HDS725050K LA360, 500GB, 7200RPM, SATA II, 16M Hitachi Deskstar 7K80, HDS728040PLA320, 40GB, 7200RPM, SATA II, 2M Hitachi Deskstar T7K500, HDT725032V LA360, 320GB, 7200RPM, SA TA II, 16M Hitachi Deskstar P7K500, HDP725050GLA 360, 500GB, 7200 ...

  • D-Link DSN-6410 - page 136

    136 Vendor Model Seagate Constellation, ST9500530N S, 500GB, 7200RPM, SATA 3.0Gb/s, 32M (F/W: SN02) B. Microsoft iSCSI initiator H e r e i s t h e s t e p b y s t e p t o setup Microsoft iSCSI Initiator. Please visit Microsoft website for latest iSCSI initiator. This example is based on Microsoft Windows Server 2008 R2.  Connect 1. Run Microsoft ...

  • D-Link DSN-6410 - page 137

    137 Figure B.2 Fi gure B.3 4. It can connect to an iSCSI disk now.  MPIO 5. If running MPIO, please continue. 6. Click “Discovery” tab to connect the second path. 7. Click “Discover Portal” . Input IP address or DNS name of the t arget. ...

  • D-Link DSN-6410 - page 138

    138 Figure B.4 Fi gure B.5 8. Click “OK” . Figure B.6 Fi gure B.7 ...

  • D-Link DSN-6410 - page 139

    139 9. Click “Targets” tab, select the second path, and then cl ick “Connect” . 10. Enable “Enable multi-path” checkbox. Then click “OK” . 11. Done, it can connect to an iSCSI disk with MP IO.  MC/S 12. If running MC/S, please continue. 13. Select one target name, click “Properties…” . 14. Click “MCS…” to add addition ...

  • D-Link DSN-6410 - page 140

    140 Figure B.10 Fi gure B.11 17. Select Initiator IP and Target portal IP, a nd then click “OK” . 18. Click “Connect” . 19. Click “OK” . Figure B.12 Fi gure B.13 20. Done. ...

  • D-Link DSN-6410 - page 141

    141  Disconnect 21. Select the target name, click “Disconnect” , and then click “Yes” . Figure B.14 22. Done, the iSCSI device disconne ct successfully. ...

  • D-Link DSN-6410 - page 142

    142 C. From single controller to dual controllers This SOP applies to upgrad ing from DSN-6110 to DSN-6120 as well as from DSN-6410 to DSN-6420. Before you do this , please make sure that either DSN-6110 or DSN-6410 is properly installed according to the manual s, especially the H DD trays. If you are NOT using SAS hard drives , you need to use HDD ...

  • D-Link DSN-6410 - page 143

    143 Please follow the steps below to upgrade to dual contr oller mode. Step 1 Go to “MaintenanceSystem”. Copy the IP SAN storage serial num ber. Step 2 Go to “MaintenanceUpgrade” and paste the serial number into “Controller Mode” section. Select “Dual” as operation mode. ...

  • D-Link DSN-6410 - page 144

    144 Step 3 Click “confirm”. The system w ill ask you to shutdown. Please shut down IP SAN storage. Click Ok. ...

  • D-Link DSN-6410 - page 145

    145 Go to “MaintenanceReboot an d shutdown”. Click “Shut down ” to shutdown the system. Click Ok. ...

  • D-Link DSN-6410 - page 146

    146 Step 4 Power off DSN-6110 or DSN-6410. In sert the second controller to the IP SAN storage. And then power on the system. Th e IP SAN storage should now become in dual controller mode as either DSN-6120 or DSN-6420. You may go to “MaintenanceSy stem information” to check out. The IP SAN storage is running in dual controller mode now. ...

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A complete D-Link manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual D-Link DSN-6410 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the D-Link DSN-6410, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the D-Link DSN-6410, that we can find in the current document
3. Tips how to use the basic functions of the device D-Link DSN-6410 - which should help us in our first steps of using D-Link DSN-6410
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with D-Link DSN-6410
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of D-Link DSN-6410 in a specific country, if it was not possible to solve the problem on our own.

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