Would use a number a bit higher than as we had stgpools with 20-30k
volumes in it.
2014-10-10 15:34 GMT+02:00 Prather, Wanda wanda.prat...@icfi.com:
Just pointing out a more common use of maxscratch that I see at smaller
customers, which is in conjunction with collocation.
If you
TSM 7.1.1 on AIX
So I have a customer putting in a VTL, which will have 96 virtual drives.
Those virtual drives will be spread across 4 HBA's.
What sort of strategies to people use to keep TSM from starting a BACKUP
stgpool process and picking 4 virtual drives all on the same HBA?
Is it
Hello Wanda,
As TSM allocates drives in order, you have to distribute drive between the HBAs
in a round robin way (with 4 hba : drive 1 on hba 1, drive 2 on hba... drive 5
on hba 1 and so on). I prefer doing this at VTL level using mapping policy (i.e
access groups on Data Domain).
Le 13
What kind of drive are they emulating? Are they emulating IBM drives with
Atape driver? My understanding (I've been trusting this for years) will auto
load balance across hba's.
Rick
-Original Message-
From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of Erwann
Wanda,
We start backups in earnest at 10pm. At that time, all of our 206 virtual
drives are busy. So we don't worry about balancing across HBAs. They all have
I/O on them.
David
-Original Message-
From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of
Prather,
Yes, emulating LTO with atape driver.
-Original Message-
From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of
Rhodes, Richard L.
Sent: Monday, October 13, 2014 1:08 PM
To: ADSM-L@VM.MARIST.EDU
Subject: Re: [ADSM-L] Load balancing when you have many virtual tapes?
That is, you put all drives on all HBA's - you end up with multiple devices per
tape drive. Then setup Atape multi-pathing. You define one device file to TSM
which it uses. Then the Atape driver will send I/O do whichever of the
equivalent devices it deems best. This isn't a disk type load
The downloadable IBM Knowledge Center contains the latest set of
information about Tivoli Storage Manager products.
You can download and display an instance of IBM Knowledge Center either
locally on a workstation, or from a server where it can be accessed by
others through a web address.
To
Thanks Angela. Most appreciated.
Best regards,
Joerg
-Original Message-
From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of
Angela Robertson
Sent: October 13, 2014 16:48
To: ADSM-L@VM.MARIST.EDU
Subject: [ADSM-L] 7.1.1 / 4.1.1 Product documentation collections for
