Thanks Del!

I assumed this was the case but just wanted to make sure I wasn't
missing something!

Tim

-----Original Message-----
From: Del Hoobler [mailto:hoobler AT US.IBM DOT COM] 
Sent: Tuesday, January 25, 2005 2:03 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Exchange Incremental Backup

Tim,

Your analysis is correct... you only need the settings
as mentioned in the manual if you want to restore them!

In your case.. you have set up a technique that allows you to keep
full backups for longer... which provides a restore granularity
to a "weekly" timeframe for older backups... but a more
granular restore (daily) for more recent backups.

Thanks,

Del

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

"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> wrote on 01/25/2005
02:41:36 PM:

> Thanks, Del:
>
> I'm just looking into this now ...
>
> The guide states:
>
> "When setting the value of the Retain Only Version parameter for
> incremental
> backups, the value must be (at a minimum) as long as the value set for
> the full backup objects to which the incremental backups are
associated.
> You can use the same management class for incremental backups and the
> full backup objects (that are retained the longest) to be sure an
> adequate value is used."
>
> Now it states "must be as long as the value set for the full backup".
> Must it really?
>
> Because that is not what I want!
>
> I would want to setup a different management class for incremental
> backups that would keep only say 7 versions while this value is set at
> 35 for my full backups.
>
> I realize that the incrementals would not be able to be restored after
> the 7 days while the fulls would be.
>
> This suits what we want, we only want the incremental restore points
in
> between our full backups for the last couple of days.
>
> Thanks,
>
> Tim Rushforth
> City of Winnipeg
>
> -----Original Message-----
> From: Del Hoobler [mailto:hoobler AT US.IBM DOT COM]
> Sent: Wednesday, October 06, 2004 2:23 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: Exchange Incremental Backup
>
> Tim,
>
> You can also set up different management classes for your
> incremental backups. Look in chapter 3 of the 5.2.1 User's Guide
> under a section titled:
>    "Data Protection for Exchange Version 5.2.1 INCLUDE/EXCLUDE
> Processing"
> It explains how to set this up.
>
> Thanks,
>
> Del
>
> ----------------------------------------------------
>
> "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> wrote on 10/06/2004
> 11:36:24 AM:
>
> > We are using Data Protection for Exchange 5.2.1.0 to backup Exchange
> 2000.
> >
> >
> >
> > We currently do nightly Full backups and have the TSM policy with
> Retain
> > Extra Versions = Retain Only Versions = 35.
> >
> >
> >
> > We are looking into doing incremental backups throughout the day to
> provide
> > for better protection.  We currently have transaction logs and the
> Exchange
> > DB on separate physical disks both RAID10.  We would need a lot of
> drives to
> > fail to lose any data here - but we are also looking at recovering
> from
> some
> > type of logical corruption where both the logs and the DB are
corrupt
> so
> we
> > would have to resort to the last backup.
> >
> >
> >
> > We really don't want or need to keep the incrementals that are done
> > throughout the day for more than a couple of days.
> >
> >
> >
> > It seems the way to do this would be to change Retain Only to say 2
> days
> but
> > leave Retain Extra at 35.  This way full backups would be kept for
35
> days
> > but incrementals would only be kept for 2 days.
> >
> >
> >
> > Does this make any sense?
> >
> >
> >
> > Is there any other way to do what we are trying to do?
> >
> >
> >
> > Are there downsides to this besides that any incremental that we do
is
> no
> > good after 2 days?
> >
> >
> >
> > Thanks for any input.
> >
> >
> >
> > Tim Rushforth
> >
> > City of Winnipeg