ADSM-L

Re: allocating disk volumes on RAID5 array

2002-05-28 15:20:10
Subject: Re: allocating disk volumes on RAID5 array
From: David Longo <David.Longo AT HEALTH-FIRST DOT ORG>
Date: Tue, 28 May 2002 15:18:11 -0400
You don't want to create one big RAID-5 disk.  If you plan to have say 
100GB disk pool, I would create say 10 RAID-5 disks - unless the 
number and size of disk you have means you need bigger Raid arrays.
Also create filesystems on separate disks (UNIX system?) for disk pool vols.
Reason is for better performance of TSM with more disks.

David Longo

>>> gwichman AT ZANTAZ DOT COM 05/28/02 03:14PM >>>
Since a RAID-5 array shows up as one big filesystem, what's the best
strategy for determining how many and of what size disk pool volumes to
create for your primary disk storage pool? For the most part I don't think
it really matters unlike allocating volumes on individual disks but perhaps
I'm not considering something.

Thanks..



"MMS <health-first.org>" made the following
 annotations on 05/28/02 15:33:53
------------------------------------------------------------------------------
---
This message is for the named person's use only.  It may contain This message 
is for the named person's use only.  It may contain confidential, proprietary, 
or legally privileged information.  No confidentiality or privilege is waived 
or lost by any mistransmission.  If you receive this message in error, please 
immediately delete it and all copies of it from your system, destroy any hard 
copies of it, and notify the sender.  You must not, directly or indirectly, 
use, disclose, distribute, print, or copy any part of this message if you are 
not the intended recipient.  Health First reserves the right to monitor all 
e-mail communications through its networks.  Any views or opinions expressed in 
this message are solely those of the individual sender, except (1) where the 
message states such views or opinions are on behalf of a particular entity;  
and (2) the sender is authorized by the entity to give such views or opinions.

==============================================================================