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" <[email protected]> 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:[EMAIL PROTECTED] > Sent: Wednesday, October 06, 2004 2:23 PM > To: [email protected] > 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" <[email protected]> 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
