AW: Working SATA Disk Pool Configuration

We use Clariion ATA for diskonly backup in the following configuration:
2 Clariions on different locations, each with 15 Raidgroups 4+1 in Raid 5. 
(Raid 5 because of disktype vols with random access)

Each Raidgroup has 1188 Gbyte that are used as 2 LUN's with 594 GB each.

Within each lun there are 2 directories: one for disk vols (4 Gbyte) and on
for tapevols (4Gbyte)
We use a small amout of FC Disk 30 GB on the clariion as primary disk pool
with maxsize=50 Mbyte
Migration next to ATA Disk Pool (2 Tbyte) with 10 days retension (most
backup files should expire here) next to ATA Tapepool (~10 Tbyte) for long
term.

At the second site we have a large copypool with 4 GB sequential volumes.

Regards,
Stefan Holzwarth


-----Ursprüngliche Nachricht-----
Von: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] Im Auftrag von
Hart, Charles
Gesendet: Freitag, 12. August 2005 14:30
An: ADSM-L AT VM.MARIST DOT EDU
Betreff: Re: Working SATA Disk Pool Configuration

Yep 594GB Vols, @ 1-4 Vols per pool, so we have 594GB to 2TB TSM Pools.
Also I forgot to mention we are writing to 3592 Tape Drives connected to
2GBs SAN ports.

Regards,

Charles 

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Ben Bullock
Sent: Thursday, August 11, 2005 4:30 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Working SATA Disk Pool Configuration

Thanks for the info, we have similar hardware and are thinking about
finally moving TSM to the SAN.

        one question though on the last "TSM" section, did you mean to
say, "Defined 594~GB~ Disk Vols in TSM Storage Pool from 1-4 Vols per
pool". Just looking at the math, I'm not sure you could (or would want
to) make 594 individual volumes 


Thanks,
Ben

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Hart, Charles
Sent: Thursday, August 11, 2005 3:10 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Working SATA Disk Pool Configuration

Someone had asked how we configured our Clarrion SATA Disk for TSM Disk
Pools...   With this cfg we see 168GB Per Hour Data Transfer per stream
from Disk pool top Tape Pool

Clariion: CX700
Drives: 320 GB SATA
Raid Sets: Raid 3 (4+1) ((5 drives per set)) Number of Luns per Raid
Set: 2 Approx Lun Size: 594GB Stripe Size: 128K


AIX OS Cfg
Created 594GB Volumes with 64K Stripes

TSM
Defined 594 Disk Vols in TSM Storage Pool from 1-4 Vols per pool