Flemming,
"Compressed Data Grew" means that during the backup
of the Exchange databases, the compression actually caused
the data to become larger.. thus, if the backup was to proceed,
it would do exactly the opposite of what you requested,
i.e. the data would expand, instead of compress.
If the data was allowed to expand, the TSM Server would
stop the backup eventually because the client is taking more
space on the TSM Server than it originally estimated.
The most common reason that I have seen for this
is when users have email attachements that are ZIP files
or other previously compressed files of some sort.
Thanks,
Del
----------------------------------------------------
Del Hoobler
Tivoli Storage Manager Development
IBM Corporation
"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> wrote on 02/02/2006
07:38:57 AM:
> 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
>
>
>
>
>
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