You have to do three FULL DB backups per day?  Can't you just have
enough log space to let this run for three days (or does that not meet
the 3 DB backup requirement?)

Does anyone know why there is a requirement for 3 DB backups before the
logs are reset?

Thanks,

Bill Evans
Research Computing Support
FRED HUTCHINSON CANCER RESEARCH CENTER
206.667.4194  ~  bevans AT fhcrc DOT org


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Zoltan Forray/AC/VCU
Sent: Wednesday, September 02, 2009 5:58 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] Log space required in 6.1

Don't forget the requirement for 3-full DB backups before the
translogs/archtranslogs are purged/reset.  I too ran into the log
overflow/blew out 300GB of archtranslog space/filesystem and had to move
it to a 1TB disk to hopefully prevent this from happening again, as well
as performing 3-daily FULL DB backups.



From:
Grigori Solonovitch <G.Solonovitch AT BKME DOT COM>
To:
ADSM-L AT VM.MARIST DOT EDU
Date:
09/02/2009 07:29 AM
Subject:
[ADSM-L] Log space required in 6.1
Sent by:
"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>



Wolfgang wrote:
>Now my long term averages are in: for the "interesting" (V5.5) TSM
servers around here, the "Log Consumption" ranges from 5000 to 9000
MB/day.
>So, does this tell me anything about future (V6) Log Space
requirements?

I have test database 6.1.2 and I think:
1) you need additional space for DB2 archive logs. Size is the same or
bigger then logs (depends on you full backup schedule);
2) you definitely need bigger space for logs. Test TSM 6.1.2 produces
logs
without any activity at all (5.5 never do this). I need 2-3GB in logs
and
archives daily without activity at all. Most possible you should plan 4
time s more space for logs and archives: 2 x Log_Size x 2 or more for
archives.



Grigori G. Solonovitch

Senior Technical Architect

Information Technology  Bank of Kuwait and Middle East
http://www.bkme.com

Phone: (+965) 2231-2274  Mobile: (+965) 99798073  E-Mail:
G.Solonovitch AT bkme DOT com<mailto:G.Solonovitch AT bkme DOT com>

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