Manuale d’uso / di manutenzione del prodotto H700 del fabbricante Dell
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Dell PowerEdge RAID Controller Cards H700 and H800 Technical Guide Enterprise-class controllers designed for performance , reliability, a nd fault toleran ce.
Dell DELL PERC H700 and H800 Technica l Guide 2 This documen t is for info rmationa l purposes only. Dell reserves the right to make changes without further notice to a ny produ cts herein. The cont ent provide d is as is and without express or implied warranties of any kind.
Dell DELL PERC H700 and H800 Technica l Guide 3 Table of Contents 1 Product Compa rison ........................................................................................... 5 1.1 Overview ........................................................
Dell DELL PERC H700 and H800 Technica l Guide 4 5.3.5 RAID 10 (Striping over Mirrored Set s) ......................................................... 25 5.3.6 RAID 50 (Striping Across RAID 5) ..........................................................
Dell DELL PERC H700 and H800 Technica l Guide 5 1 Product Compari son 1.1 Overview The PERC H700 (i nternal) and PERC H800 (extern al) RAID controllers ma rk t he next stage in the evolutio n o f the Dell ™ Power Edge™ RAID controlle r portf olio with t he introduction o f 6Gb/s SAS (S AS 2.
Dell DELL PERC H700 and H800 Technica l Guide 6 1.2 PERC H700 Overview The PERC H700 interna l host-RAID produ ct offers three different mode ls to su pport 11 th Generation Dell PowerEdge servers: The PERC H700 Integrated card with tw o x4 internal mi ni-SAS ports supp orts the PCIe 2.
Dell DELL PERC H700 and H800 Technica l Guide 7 Figure 2. PERC H700 Modular 1.3 PERC H800 Overview The PERC H800 externa l host-RAID produ ct is supp orted with 11 th Generatio n Dell PowerEdge servers for expanding st orage to the D ell ™ PowerVault ™ MD1200 and MD1220 6Gb/s SA S enclosures.
Dell DELL PERC H700 and H800 Technica l Guide 8 Figure 3. PERC H800 Adapter.
Dell DELL PERC H700 and H800 Technica l Guide 9 2 New F eatures 2.1 Overview The PERC H700 and PE RC H800 o ffer the new Ca cheCade feat ure: • Produces cost-effe ctive perform ance scaling fo r dat.
Dell DELL PERC H700 and H800 Technica l Guide 10 Other new features of the 6Gb /s SAS controlle rs will offer impro ved sign al integrit y and additional safeguards to enhance data prot ection wit h support for SED (Self-Encrypt ing Drive) techno logy.
Dell DELL PERC H700 and H800 Technica l Guide 11 3 Product Support 3.1 Dell PowerEdge Server Support The Dell PERC H700 and PERC H800 are supported wit h 11 th Generation Dell™ PowerEdge ™ servers . Refer to Table 1 for the 11 th Generatio n PowerEdge servers t hat suppo rt the PERC H700 and PE RC H800.
Dell DELL PERC H700 and H800 Technica l Guide 12 Table 5. Operatin g System Su pport wit h PERC H700 and PERC H800 Supported Operating Sys tems Microsoft ® Windows Se rver ® 2003 Family Microsoft Windows Server 2008 Family Microsoft Windows Server 2008 R2 Red Hat ® Enterprise Li nux ® Version 4 and V ersion 5 RHEL 4.
Dell DELL PERC H700 and H800 Technica l Guide 13 4 Product Overv i ew 4.1 PERC H700 and PERC H800 Overview Table 7. PERC H70 0 and PERC H800 Featur es Feature PERC H700 Integrated/Ad apter PERC H700 M.
Dell DELL PERC H700 and H800 Technica l Guide 14 Feature PERC H700 Integrated/Ad apter PERC H700 Modular PERC H800 Adapte r Physical Disk Power Management Yes Yes Yes RAID Level Migration Yes Yes Yes .
Dell DELL PERC H700 and H800 Technica l Guide 15 Feature PERC H700 Integrated/Ad apter PERC H700 Modular PERC H800 Adapte r Clustering Card and software stack enables Hig h Availability Clusters Not supported 4.
Dell DELL PERC H700 and H800 Technica l Guide 16 Table 8. RAID L evel Migrati on Source RAID Level Target RAID Level # of Physical Drives (Beginning) # of Physical Drives (End) Capacity Expansion Possible Description RAID 0 RAID 1 1 2 No Converting non- redundant virt ual disk into a mirrored v irtual disk by adding one drive.
Dell DELL PERC H700 and H800 Technica l Guide 17 Physical disk rebuild using ho t spar es Enclosure affinit y Parity gene ration and checkin g (for RAID 5, 50 , 6, and 60 onl y) Battery ba ckup of contro ller cache to prot ect dat a Detectio n of batteries with lo w charge after boo t up 4.
Dell DELL PERC H700 and H800 Technica l Guide 18 being a ready ho t spare. This al lows hot sp ares to remain in specific enclo sure slots. Whi le the controller is reverti ng the hot spare, the virtual disk remain s optima l.
Dell DELL PERC H700 and H800 Technica l Guide 19 4.7 Disk Roaming The PERC H700 and H80 0 cards support mo ving ph ysical disks from one cable conne ction or backplane slo t to anot her on the same controller .
Dell DELL PERC H700 and H800 Technica l Guide 20 4.10 Virtual Disk Write Cache Policies The write cache poli cy o f a virtual disk det ermines how the controller ha ndles writ es to that virtual disk. Write-Back and W rite-Throug h are the two w rite cache poli cies and can be set on virtual disks individuall y.
Dell DELL PERC H700 and H800 Technica l Guide 21 5 RAID Overv ie w 5.1 About RAID RAID is a way of storing data on mul tiple independen t physical disk s for the purpose o f enhanced performance and/o r fault to lerance. The physica l disks combi ne to make up what is called a virtua l disk.
Dell DELL PERC H700 and H800 Technica l Guide 22 For example, a four -drive virtua l disk may be co nfigured wit h 16 stripes (four st ripes of designa ted space per drive). Stripes A, B, C and D are located on cor respondin g hard drives 0, 1, 2, and 3.
Dell DELL PERC H700 and H800 Technica l Guide 23 Figure 5. Example of RAID 1 (Mirrorin g) A dvantages of RA ID 1 High performance up to tw ice the read transa ction rate of sing le disks, a nd the.
Dell DELL PERC H700 and H800 Technica l Guide 24 Figure 6. Example of RAID 5 (Single Vi rtual Disk wi th 5 drives) A dvantages of RA ID 5 Most efficient use of drive capacit y of all the redunda n.
Dell DELL PERC H700 and H800 Technica l Guide 25 Figure 7. Example of RAID 6 (Single Vi rtual Disk wi th 5 drives) A dvantages of RA ID 6 Can survive the lo ss of t wo disks wit hout losing data .
Dell DELL PERC H700 and H800 Technica l Guide 26 Figure 8. Example of RAID 10 (1 + 0) Advantages of RAI D 10 RAID 10 has the sam e redu ndancy as RAID le vel 1 High I/O rates are achieved by s.
Dell DELL PERC H700 and H800 Technica l Guide 27 Figure 9. Example of RAID 50 (5 + 0) Advantages of RAI D 50 Allows creatio n of largest RAID g roups, up to 25 6 drives (theo retical; larg e RAID .
Dell DELL PERC H700 and H800 Technica l Guide 28 Figure 10. Example of RAID 60 (6 + 0) Advantages of RAI D 60 Allows creatio n of largest RAID g roups, up to 25 6 drives (theo retical); lar ge RAI.
Dell DELL PERC H700 and H800 Technica l Guide 29 Appendix A. Additional R e sources Table 9. Resource Con tact Infor mation and Description s Type Of Information URL Description PERC Resources http://www.dell.com/ PERC Support matrix, white papers, and important li nks PERC Hardware Owner’s Manual http://support.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Dell H700 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Dell H700 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Dell H700 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Dell H700 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Dell H700, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Dell H700.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Dell H700. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Dell H700 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
