CX4-120 initial raid group creation

Question

Hi,

We just upgraded CX-300 to CX4-120 and I'm looking for a best practice document before creating the raid groups on my new system.

I've 15 X 450 GB FC disk in a rack and I'm looking for the best practice guide. Should I create a raid 6 with 14 disk and leave one for spare ?
Should I create a raid 5 with 14 disk and leave one for spare ?
Should I create many raid 6 and 5 with the 14 disk and leave one or two disk for spares ?

I'm a little bit confused because in the actual system, we created a raid 5 group by lun....but we "loose" a disk for parity by raid 5 group....at the end, it make a lot of disk space loose in parity....

Thanks,

Message was edited by:
Steves Begin

dynamox · Accepted Answer

Steves,take a look at this thread:https://forums.emc.com/forums/thread.jspa?tstart=0&threadID=98720look for kelleg list of recommended readings. I know it's a lot of reading but you will find it very very useful as you administer your array. Welcome to EMC forums

dynamox · Answer

another very good resource on PowerLink is "White Papers". These are really good guides that describe how to deploy certain platforms/applications on EMC gear.

Home > Support > Technical Documentation and Advisories > Hardware/Platforms Documentation > CLARiiON CX4 Series Systems > CLARiiON CX4-120 > White Papers

and

Home > Support > Knowledgebase Search > Documentation and White Papers Search

if you search white papers for string "Clariion ESX", you will find plethora of documents that describe how to best deploy ESX on Clariions.

Steves3 · Answer

Thanks a lot...I will read the documents. They look exactly what I'm looking for....and I'm implementing ESX on SAN in the next 2 month...so it will help a lot....Thanks again !

CLARiiON

CX4-120 initial raid group creation

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