Hi all,

Got nothing to do with Atape driver. I posted about these issues on
31-Jan (search for " Be Aware: TSM 6.2.3 & AIX 7 TL2 FP2 don't mix")

Raised a case about it but got the following answer back from IBM: TSM
6.2 is not supported on AIX6 TL7.

Either roll back to AIX6 TL4 or update to AIX7

Best Regards,
Oscar


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Clark, Margaret
Sent: 01 March 2012 22:10
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] Slow TSM DB Backup

No, we're still using 11.6.0.0.  - Margaret

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Lamb, Charles P.
Sent: Thursday, March 01, 2012 1:07 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] Slow TSM DB Backup

Margaret......

Are you using the latest Atape driver which just released on 27 Feb
2012??  Atape V12.4.1.0  It did somewhat help, however, the TSM DB
backup takes us 1 1/2 for full, TSM DB snapshot takes us 2 1/2hrs with
our 100GB of data in our 340GB DB2 database.  They were about 10-15
minutes in length before we performed the AIX migration from V5.3.12.3
to V6.1.7.3. 

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Clark, Margaret
Sent: Thursday, March 01, 2012 2:09 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] Slow TSM DB Backup

Should have mentioned: we upgraded to AIX 6.1 TL 7.1 at the same time as
the upgrade to TSM server 6.2.3.1.  
We upgraded to AIX 6.1 TL 7.0 on Jan 12th, and of eleven database
backups before adding the 7.1 patches, two were exceptionally long -
unprecedentedly long at that time, between 5 and 6 hours.
We're up to one long database backup out of the last six now, since
resetting REORGDURATION and making sure DB backup is not during the
reorg window.
- Margaret

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Lamb, Charles P.
Sent: Thursday, March 01, 2012 7:52 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] Slow TSM DB Backup

Hi.........

We are experiencing slow TSM DB backup process on both of our TSM
systems using AIX V6.1.7.x, TSM V6.2.3.100, Atape v12.4.1.0.  The issues
began immediately after we upgraded from AIX v5.3.12.3 to AIX v6.1.7.x.
We have created a performance PMR#53387,379,000 with TSM support.  With
100GB data in a DB2 database, we are seeing 30 to 60sec waits between
.1/.2GB database transfers to IBM LTO4 tape drives via TSM q se screen.
It is taking a very long time to complete a TSM DB backup. Before the
AIX upgrade, the full DB backup took about 10 minutes; now we are seeing
backups of hours in length.

Anybody having these types of issues??
 
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