happyadm
3 Silver

Raid 5 across two enclosures on cx4-120?

Jump to solution
Hi,

When I use navi to define my RAID-5 groups I noticed the recommended 5 disk configs suggested by the gui span across two enclosures? I am guessing it just goes and calculates the next five available disks. Is this wise to do? I know with raid 1_0, the cli is used to balance the data and mirrors across two enclosures, but what about RAID-5?

Thank you!

Happyadmin
Labels (1)
0 Kudos
1 Solution

Accepted Solutions
jps00
3 Zinc

Re: Raid 5 across two enclosures on cx4-120?

Jump to solution
The CX4-120 is a single bus CLARiiON. You cannot recieve any of the benefits of distributing RAID groups across buses on that model because all enclosures (DAEs) are on the same bus. That is, putting your disks on separate enclosures on that model CLARiiON is the same performance-wise as provisioning them in the same enclosure.

View solution in original post

0 Kudos
5 Replies
RyanP2
3 Argentum

Re: Raid 5 across two enclosures on cx4-120?

Jump to solution
Primus emc98039. It may answer all you questions.

-Ryan
jps00
3 Zinc

Re: Raid 5 across two enclosures on cx4-120?

Jump to solution
The CX4-120 is a single bus CLARiiON. You cannot recieve any of the benefits of distributing RAID groups across buses on that model because all enclosures (DAEs) are on the same bus. That is, putting your disks on separate enclosures on that model CLARiiON is the same performance-wise as provisioning them in the same enclosure.

View solution in original post

0 Kudos
RyanP2
3 Argentum

Re: Raid 5 across two enclosures on cx4-120?

Jump to solution
Nice pickup jps, I totally missed cx4-120.
0 Kudos
happyadm
3 Silver

Re: Raid 5 across two enclosures on cx4-120?

Jump to solution
Thank you Ryan!
0 Kudos
happyadm
3 Silver

Re: Raid 5 across two enclosures on cx4-120?

Jump to solution
Thank you jps00!
0 Kudos