ADSM-L

Re: [ADSM-L] TDP for Mail: Verify which backup type clears the logs?

2009-01-30 10:56:43
Subject: Re: [ADSM-L] TDP for Mail: Verify which backup type clears the logs?
From: Del Hoobler <hoobler AT US.IBM DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Fri, 30 Jan 2009 10:55:00 -0500
Joni,

Legacy incremental backups will result in a log truncation.

When running legacy backups, after the backup completes successfully,
DP/Exchange will signal the Exchange Server that the logs have been backed
up.

It is the responsibility of the Exchange Server to actually perform
the physical truncation (deletion) of the committed logs after it
gets this signal from DP/Exchange.

(It's always been this way, by the way... it's a common misconception
that a backup product actually deletes the Exchange log files.)

Be aware that in an Exchange CCR environment, you may not see those
log files get deleted right away because the Exchange Server
must coordinate the deletion of the logs with the replica server.

The IBM person that told you that you  must run a full, could have been
thinking that you were running VSS backups from the replica.

Thanks,

Del

----------------------------------------------------

"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> wrote on 01/30/2009
10:42:17 AM:

> [image removed]
>
> Re: TDP for Mail: Verify which backup type clears the logs?
>
> Joni Moyer
>
> to:
>
> ADSM-L
>
> 01/30/2009 10:43 AM
>
> Sent by:
>
> "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
>
> Please respond to "ADSM: Dist Stor Manager"
>
> Hi Del,
>
> I am just running legacy backups from the primary node.  I guess I'm
just
> looking for verification on what I am reading within the manual.  I
don't
> see how else I could read into that statement, but to me running an
> incremental backup would in fact backup the log files and then delete
them
> which would be clearing the logs.  I'm just unsure of myself due to an
IBM
> consultant telling me otherwise.
>
> Just let me know either way.  And thanks!!!!