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SS Technology Forum

Computer Migration - Things to Consider

Here are a few points which you can consider while doing computer migration. These points are applicable to all migrations irrespective of the migration tool (ADMT, NetIQ, Quest etc)

Active Directory User Migration

Here is a graphical representation of the high level steps involved in an Active Directory migration using ADMT

User Migration and Merging Using Quest Migration Manager

Pre-creating user account in the target domain is a common scenario these days due to single-sign-on solution, HR management procedure etc

Microsoft Right Management Service (RMS)

Rights Management Service (RMS) is an add-on to many RMS aware applications. In this article my main focus is to explain how we can utilize RMS technology with Exchange 2003 and how we can take advantage of RMS technology to increase the email security

Microsoft ISA Server

I am sure we have all either encountered or heard of this "problem" one time or another if the ISA Server is part of the Active Directory Domain. Is it a problem?

Showing posts with label DPM and Recovery Point Limit. Show all posts
Showing posts with label DPM and Recovery Point Limit. Show all posts

Monday, November 2, 2009

DPM and Recovery Point Limit

As you know, for files, DPM can store a maximum of 64 recovery points for each volume included in a protection group, and it can create a maximum of 8 scheduled recovery points for each protection group each day. The limit of 64 recovery points for files is a result of the limitations of the Volume Shadow Copy Service (VSS), which is necessary for the end-user recovery functionality of DPM. The recovery point limit does not apply to application data.

This is a VSS limitation which allows up to 512 snapshots to exist simultaneously for the same volume, from which maximum 64 snapshots could be used for the Shadow copies for Shared Folders feature. So the total number of recovery points is limited to 512 for application servers and 64 for file servers.

Here are some good reference materials:
http://technet.microsoft.com/en-us/library/cc785914(WS.10).aspx
http://technet.microsoft.com/en-us/library/bb808859.aspx
http://technet.microsoft.com/en-us/library/bb808865.aspx

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