[Lustre-discuss] Disk array setup opinions

Hammitt, Charles Allen chammitt at email.unc.edu
Mon Mar 11 08:31:38 PDT 2013

Is capacity potential or performance potential more important to you?

Raid type and segment size are characteristics of a disk group not a virtual disk...so the answer is right there depending on your needs...

Then we could move the conversation on to disaster recovery as well...



-----Original Message-----
From: lustre-discuss-bounces at lists.lustre.org [mailto:lustre-discuss-bounces at lists.lustre.org] On Behalf Of Jerome, Ron
Sent: Monday, March 11, 2013 9:02 AM
To: 'lustre-discuss at lists.lustre.org'
Subject: [Lustre-discuss] Disk array setup opinions

I am currently having a debate about the best way to carve up Dell MD3200's to be used as OST's in a Lustre file system and I invite this community to weigh in...

I am of the opinion that it should be setup as multiple raid groups each having a single LUN, with each raid group representing an OST, while my colleague feels that it should be setup as a single raid group across the whole array with multiple LUNS, with each LUN representing an OST.

Does anyone in this group have an opinion (one way or another)?


Ron Jerome
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