Dot Hill Systems 200の取扱説明書

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Summary
  • Dot Hill Systems 200 - page 1

    1 SANnet II 200 SCSI Array Technical Product Description Guide January 2003 83-00002947 Revisi on A ...

  • Dot Hill Systems 200 - page 2

    Copy right Copyrig ht 2001-2003 – D ot Hill System s Corp. All rig h ts reserved. No part of this publication may be reproduced, stored in a retrieval sy stem , translated, transcribed, or transm itted, in any form or by any m eans – manual, electric, elect ronic, electromechanical , chem ical, optical, or otherwise – without prior explicit w ...

  • Dot Hill Systems 200 - page 3

    Contents TABLE OF CONTE NTS .............................................................................................................. ............... 3 INTRODUCTION ........................................................................................................................................ 4 K EY F EATU RES ......................... ...

  • Dot Hill Systems 200 - page 4

    Introduction The SANnet I I 200 SCSI array is a robust Ultra160 SCSI storage system and worthy successor to the well- established SANnet 3300 series arrays. Fa st perform ance, high av ailability and sim ple manag eability are condensed into a flexible, v e rsatile, rugged and cost- effective pack age. Each SANnet II 200 SCSI array holds twelve 1- ...

  • Dot Hill Systems 200 - page 5

    · Unified graphical user interface (G UI) prov ides intuitive configuration, m anagem ent and reporting for ev ery Dot Hill S ANnet I I series array in your environm ent. · Support for a broad range of RAI D levels: 0, 1, 0+1, 3, 5, 3+0 and 5+0 assures flexible performance and protection. · Dynam ically expand capacity and perform an ce by addin ...

  • Dot Hill Systems 200 - page 6

    FIGURE 3 : Ty pical Sequenc e of Insta llation Steps Reliability , A vailab ility and Serv iceability Com prehensive reliability , availability and serv i ceability (RAS) are assured within SANnet I I 200 SCSI arrays. Prov en low voltag e differential (LVD ) sign aling across all disk and host SCSI buses keeps data transfers reliable. Flexible supp ...

  • Dot Hill Systems 200 - page 7

    Performance SANnet II 200 SCSI array s provide very high le v els of performance within a com pact package. The use of Ultra160 SCSI tec hnology throughout for disk s and servers results in perform ance approaching that of storag e ar ea networks (SAN) from a direct attached storag e (DAS) solution. Cache mem ories of up to 1GB per array with suppo ...

  • Dot Hill Systems 200 - page 8

    A rch itecture SANnet I I 200 SCSI arrays use m odular desig n principles. Essen tially, each array is a collection of independent modules that operate cooperativ el y, providing all the necessary array functions. The foundation of every array is the enclosure module. Enclosure M odules The primary building block of any SANnet II 200 SCSI array is ...

  • Dot Hill Systems 200 - page 9

    With redundant controllers, the system can use th e controllers in active/passive or activ e/active (recomm ended) mode. When a controller is config ur ed as active/passive, only a single controller is used to process I/O, while the other controller passiv ely stands by in case of failure. When configured as activ e/active, both controlle rs active ...

  • Dot Hill Systems 200 - page 10

    mode. The 146GB disk is available in speeds of 10,000RPM only at this tim e, but the other capacities are available in 10,000RPM or 15,000R PM speeds. Disks FRU s are hot-swappable or hot- serviceable depending their log ical configuration – i.e., depending on whether the disk s are configured to prov ide redundant RAID protection or not. The dis ...

  • Dot Hill Systems 200 - page 11

    The cooling fans within each FRU operate as ma tched pairs with tachom eter-controlled spindles and position-sy nchronized blades for m aximum e fficiency. Every cooling fan operates from a comm on power bus so the failure of a power suppl y will not interrupt the operation of any fans, even those in the sam e FRU as the failed power supply. To rem ...

  • Dot Hill Systems 200 - page 12

    To remov e an EMU, loosen the small thum bscrews at each end and then rem ove the EMU by pulling it out from the enclosure. To install one, slide the EMU into the enclosure until it stops and tighten the thum bscrew until secure. To maintain optim um cooling, avoid operating a SANnet II 200 SCSI array for more than a few m inutes with an EMU remov ...

  • Dot Hill Systems 200 - page 13

    Terminati on M odule The SANnet I I 200 SCSI array term inator board is a field-serviceable FRU that supplies the SCSI termination throug hout a base enclosure. It is hot- serviceable but not hot-swappable, so replacing one will require planned downtim e. The termination m odule is essentially hidden between controllers, so it requires the remov al ...

  • Dot Hill Systems 200 - page 14

    Features Controller Optimiz ation SANnet II 200 SCSI array controller operations ar e highly autom ated to m inimize m anagem ent workloads and are self- tuning to optim ize perf orm ance. Powerful advanced features are supported, such as multi- threading, seg mentation, read- ahead, write- through, write- back, queuing and sorting. Array users can ...

  • Dot Hill Systems 200 - page 15

    The surviing controller of a fail- over process al way s becomes the prim ary controller. Replacing the faulty controller will result in an automatic fail- back process, where the array restores a redundant controller configuration. The new contro ller will becom e the secondary controller until the next reset or power cycle of the array , at which ...

  • Dot Hill Systems 200 - page 16

    amount of read cache m emo ry is filled or sequentia l requests are no longer detected. I f available read cache mem ory fills and sequential read requests continue, the controller w ill flush write cache content and allocate additional mem ory to read operations autom atically. Since read cache contents are identical to information already on disk ...

  • Dot Hill Systems 200 - page 17

    Spare Disks A SANnet II 200 SCSI array disk can be assigned as a data disk or a spare disk. When configured as a spare, it can serve as a local spare to one sp ecified logical driv e or as a global spare available to all logical drives. More than one spare disk can exist for a particular logical drive and ev en combinations of local and g lobal dis ...

  • Dot Hill Systems 200 - page 18

    Manageme nt Configurati on Dot Hill’s SAN scape software is a Java technology -based software prog ram that com bines storage config uration, maintenance and m onitoring tools into a single, easy -to- use packag e. SANscape software provides centraliz ed admini stration of SANnet II 200 SCSI storag e system s across existing local and wide area n ...

  • Dot Hill Systems 200 - page 19

    Moni tori ng The main SANscape window provides status at a glance for all network ed array devices. I t indicates the status of the devi ces and logical driv es connected to servers m onitored by the SANscape Console. The dev ices include host adapte rs, array controllers, disk storag e enclosures, physical disk drives and other SCSI dev ices. The ...

  • Dot Hill Systems 200 - page 20

    When the console receives any event, it logs it into SA Nscape’s Event Log file, EVENTLOG.TX T, and displays it in the Event Log window. Also, if the event occurs on a server, the notification of the ev ent is sent to that server’s operating env ironment/sy stem ev ent log. On an NT server, it would g o to the NT ev ent log. In addition, when t ...

  • Dot Hill Systems 200 - page 21

    In-Band & Out-of-Band M anagement SANscape’s out- of- band storage manag ement capability enables you to m onitor and manag e Dot Hill arrays ov er the network using TCP/I P. Unlike in- band storage m anagem ent (the standard method of storag e manag ement fo r storag e), which requires the SANscape Agent to be running on the server that is p ...

  • Dot Hill Systems 200 - page 22

    Event Reporting You can use Dot Hill’s SA Nscape to run as a backg round service to report events to specified email addresses. U sing SANscape, y ou can: · Define the types of m essage traps sent · Define the timing of messag es sent · Send encrypted m essages · Receive m essages and decry pt encrypted m essages on the Mail Receiv er Tool To ...

  • Dot Hill Systems 200 - page 23

    Firmw are Updates Fast and easy download of new v e rsions of controller and disk firmware is possible using the SANnet I I 200 SC SI array m anagem ent suite. The Dot Hill CLI and SANscape both support controller updates over in- band SCSI connec tions and out- of-band Et hernet connections. SANscape provides updates for disk s over in-band SCSI c ...

  • Dot Hill Systems 200 - page 24

    Detailed Specifications RAID RAID lev els 0, 1, 0+1, 3, 5, 1+0, 3+0 a nd 5+0. Enhance d RAID L evels supported w ith logical volume im plem entation. Maxim um num ber of logica l drives 8 RAID level depen dency to each logical drive Independe nt. Logica l drive conf igured in dif fer ent RAID levels can co-exist in an array Maximum number of dri ve ...

  • Dot Hill Systems 200 - page 25

    Supported m emor y ty pe SDRA M mem ory for enha nced perf orma nce. Fas t page m em ory with par ity f or enhanced data security . ECC-protec ted. Read-ahead operatio n Intelligent dy namic re ad-ahead operation f or sequential data accessing Multi-threaded opera tion Yes Scatter /gather suppor ted Supported I/O sorting Supported. Optim ized I/O s ...

  • Dot Hill Systems 200 - page 26

    Head: 64,127,255 or variable Cy linder: <1024, <32784,< 65536 or vari able Drive m otor spin-up Supported The controller will send spin -up (start un it) comma nd to each drive at 4 sec. int ervals. Drive -side tag comm and queue Supported User adjustable up to 128 f or each dr ive Host-s ide m axim um que ued I/O count Supported User adju ...

  • Dot Hill Systems 200 - page 27

    No single -point-of-f ailure Supporte d Automatic engagement o f replacement controller Supported Dynamic cache mem ory allocatio n Supported Cache memory is dynam ically allo cated, n ot fixed. Environm ent m anage ment Suppor ted SAF-T E, S.E.S., ISEMS (I 2 C interface), and onboard controlle r voltag e/temp m onitor are all supported in both sin ...

  • Dot Hill Systems 200 - page 28

    Drive S.M.A.R.T . support Supported Clone fa iling drive Supported Users may choose to clone data f rom a failing drive to a bac kup drive m anually User Interface RS-232C ter minal Supported term inal m odes: AN SI, VT-100, A NSI Color. Provide s me nu- driven u ser-friendly text-based i nterface. 28 ...

  • Dot Hill Systems 200 - page 29

    Performance Parameters Parameter Range RAID level JBOD, N-RAID, RA ID 0, RAID 1, RAID 1+0, RAID 3, RAID 3+0, RA ID 5, RA ID 5+0 Rebuild priority Low , Normal, Im proved, High Verif ication on w rite Enabled or disa bled Max tag count 1-128 or disa bled Max que ued I/O count 32-1024 or auto LUNs pe r SCSI ID Up to 32 Num ber of host- LUN conne ction ...

  • Dot Hill Systems 200 - page 30

    Glossary active termination, regulated Terminates the SCSI b us with a series of re sistors tied to +5 volts. The term inator is labeled Re gulated but is ofte n referred to a s an Activ e Term inator. active-active controllers A pa ir of com ponents, such a s storage controllers in a failure- tolerant RA ID array that share a task or s et of tas k ...

  • Dot Hill Systems 200 - page 31

    fast w rite Allow s disk w rite comm ands to be saf ely a cknowle dged to the host bef ore the data is actually writte n to the disk me dia. This can be enabled/disabled throug h the storage man age men t so ft war e. fast/wide SCSI Data transfer rate o f 20 MB/sec. Wide devices can be co nnected to a stan dard S CSI interface bu t the extr a data ...

  • Dot Hill Systems 200 - page 32

    hot spare or hot sparing A driv e in a RA ID 1 or RA ID 5 conf iguration that is held in reser ve to repla ce any other drive tha t fails. A fter a reconstr uction, the hot-spare drive is re turned to the standby stat us. hot-serviceable T he ability to remove, replace or add a device while power is still applied bu t all I/O processes are su spend ...

  • Dot Hill Systems 200 - page 33

    comm ission to complete a repair process. N port A Fibre Channel port in a point- to-point or Fabric c onnection. NVRAM Non-Volatile Random A ccess Me mory . A m emory unit equipped with a battery so tha t the data stays intact even after the main po wer had been switched o ff. out-of-ba nd Ref ers to the c onnections and de vices tha t are not in ...

  • Dot Hill Systems 200 - page 34

    34 devices and servers pro vidin g accelerated d ata access. SCA Single connec tor attachm ent. A SCSI disk conne ctor technolog y coinv ented by Sun Microsy stem s. The SC A provide s all SCSI, pow er, and control si gnals in a s ingle connector , and enables e asy servicing and highly reliable, plug gable disk drives. SCSI Small Computer Systems ...

  • Dot Hill Systems 200 - page 35

    35 independent dis k spindles. T he am ount of data written on each disk before movin g to th e next driv e is the str ipe width. terminator A part used t o end a SCSI b us. Terminator s prevent energy from ref lecti ng back in to a cable pla nt by abs orbing the radio f requenc y sig nals. throughput A m easure of seque ntial I/O per form ance, qu ...

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