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Re: [ADSM-L] Lun versus logical volume for DB volumes
2014-07-15 23:07:54
Steven,
The logical volumes are not dedicated
disks in most cases, which means that other applications may be using the
same disks at the same time. With our new "TSM Server Blueprint"
standards, TSM database's over 1TB require 16 luns.
You can go to this link to find out
more
https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/Tivoli%20Storage%20Manager/page/NEW%20-%20Tivoli%20Storage%20Manager%20Blueprint%20-%20%20Improve%20the%20time-to-value%20of%20your%20deployments
Best Regards,
_________________________________________________________
Ronald C. Delaware
IBM Level 2 - IT Plus Certified Specialist – Expert
IBM Corporation | Tivoli Software
IBM Certified Solutions Advisor - Tivoli Storage
IBM Certified Deployment Professional
Butterfly Solutions Professional
916-458-5726 (Office
925-457-9221 (cell phone)
email: ron.delaware AT us.ibm DOT com
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Services Offerings
From:
Steven Harris <steve AT STEVENHARRIS DOT INFO>
To:
ADSM-L AT vm.marist DOT edu
Date:
07/15/2014 06:55 PM
Subject:
[ADSM-L] Lun
versus logical volume for DB volumes
Sent by:
"ADSM:
Dist Stor Manager" <ADSM-L AT vm.marist DOT edu>
Hi,
I've specced a design for a new TSM server and as recommended have
specified multiple luns for the database. The folklore is that DB2
will
start one thread per lun so for a big database you use 8 luns and hence
get
8 threads.
My AIX guy is asking whether I really need 8 luns or will 8 AIX logical
volumes have the same effect.
Does anyone know or can tell me where to look?
Thanks
Steve.
Steven Harris
TSM Admin
Canberra Australia
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