From: ADSM: Dist Stor Manager [mailto:ads...@vm.marist.edu] On Behalf Of km
>TSM mirroring doesnt help performance when doing expiration or reclamation
>anyway which is what you want to optimize the DB for.
TSM mirroring, however, DOES give one concrete benefit that OS or hardware
mirroring can't
On 19/02, Allen S. Rout wrote:
> >> On Thu, 19 Feb 2009 16:27:29 +0100, km said:
>
>
> > RAID5 will give you the maximum amount of IOPS for the DB with disk
> > redundancy, though 4 disks is on the low side.
>
> > TSM mirroring doesnt help performance when doing expiration or
> > reclamation anywa
>> On Thu, 19 Feb 2009 16:27:29 +0100, km said:
> RAID5 will give you the maximum amount of IOPS for the DB with disk
> redundancy, though 4 disks is on the low side.
> TSM mirroring doesnt help performance when doing expiration or
> reclamation anyway which is what you want to optimize the DB
On 18/02, Michael Green wrote:
> You are given 4 spindles to place TSM DB on them.
> How would you set them up to squeeze maximum performance for DB?
>
> 1. Dedicate each spindle for a DBC (result: 3 DBCs, one spindle left
> out, nevermind)
> 2. Create RAID 0 out of each pair of disks. Place a DBC
ADSM-L@VM.MARIST.EDU
Dist Stor cc
Manager"
Re: 4 spindles for db: best
performing setup
02/19/2009 03:06
AM
will reduce performance.
Best Regards
Daniel Sparrman
Från: ADSM: Dist Stor Manager [ads...@vm.marist.edu] för Oscar Kolsteren
[oscar.kolste...@ingdirect.co.uk]
Skickat: den 19 februari 2009 09:04
Till: ADSM-L@VM.MARIST.EDU
Ämne: Re: 4 spindles for db: bes
rds,
Oscar
-Original Message-
From: ADSM: Dist Stor Manager [mailto:ads...@vm.marist.edu] On Behalf Of
Michael Green
Sent: 18 February 2009 20:23
To: ADSM-L@VM.MARIST.EDU
Subject: [ADSM-L] 4 spindles for db: best performing setup
You are given 4 spindles to place TSM DB on them.
How would yo
Sent by: "ADSM: ADSM-L@VM.MARIST.EDU
Dist Stor cc
Manager"
[ADSM-L] 4 spindles for db: best
performing setup
19/02/
You are given 4 spindles to place TSM DB on them.
How would you set them up to squeeze maximum performance for DB?
1. Dedicate each spindle for a DBC (result: 3 DBCs, one spindle left
out, nevermind)
2. Create RAID 0 out of each pair of disks. Place a DBC on each RAID
(result: 2 DBCs on two separa
