Flemming,
I suspect the problem is not in the compression, per se, but in the fact
that (I am guessing) you are sending the backup to a diskpool that has
caching turned on. What I have experienced in the past with TDP is that
the TDP only "guesses" how large a given object is going to be when it
sends it to the diskpool during backup. When caching is turned on and
the diskpool is full, it first has to clear out enough old data to make
room for the new. If it guessed wrong on the final size, the backup
will fail, because it didn't clear out enough room for what was actually
sent.
I would recommend turning caching off and migrating all the data out of
the diskpool and seeing if that corrects the problem.
Steve Schaub
Systems Engineer, WNI
BlueCross BlueShield of Tennessee
423-752-6574 (desk)
423-785-7347 (cell)
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Hougaard.Flemming FHG
Sent: Thursday, February 02, 2006 7:39 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] TDP for Exchange fails due to Compressed data grew!
Hi all
I have a "funny" problem - If I install the above mentioned TDP for
Exchange (dowsn't matter if it's versions for Exch. 5.5, 2000 or 2003),
and enable compression the backup typically functions without any
problems... At start anyway - after a given period of time (can be a
week, a month, a year you name it) the full backup fails with the
errormessage "COMPRESSED DATA GREW..." - so somewhere along the road the
Exchange database suddenly becomes compressed.
The funny thing, is that noone seems to be aware of this should happen
(I've asked all the Exchange experts I know - same answer: not to their
knowledge)!
So where does all this leave me? Should I never use compression? Are
there anyone who knows more about Exchange than my experts do ;o) ?
In this situation it would be nice if the "COMPRESS ALWAYS" function
were enabled in the TDP agent....
Regards
Flemming
________________________________________________________________________
_______________
www.kmd.dk www.kundenet.kmd.dk www.eboks.dk www.civitas.dk
www.netborger.dk www.organisator.dk
Hvis du har modtaget denne mail ved en fejl vil jeg gerne, at du
informerer mig og sletter den.
KMD skaber it-services, der fremmer effektivitet hos det offentlige,
erhvervslivet og borgerne.
If you received this e-mail by mistake, please notify me and delete it.
Thank you.
Our mission is to enhance the efficiency of the public sector and
improve its service of the general public.
Please see the following link for the BlueCross BlueShield of Tennessee E-mail
disclaimer: http://www.bcbst.com/email_disclaimer.shtm
|
