How to delete Logs in a Exchange 2007 CCR

Here is the process to manually remove log files. As a reminder once this is done you will NOT be able to perform an incremental backup until a FULL backup is completed.


1. Suspend replication on the server
a. Get-StorageGroup -Server | Suspend-StorageGroupCopy
2. On the passive node check the database header to find out the logs required.
a. Eseuil /mh (the ‘State’ will be Dirty Shutdown, this is expected and not an issue).
b. Look for ‘Log Required’. This will tell you which logs CANNOT be removed. Anything before those logs are safe to remove.
i. Looking at the sample below, Logs Exx00004A42-Exx00004A45 cannot be removed. Logs Exx00004A41 and earlier can be removed. (Exx will depend on the SG…can be E00, E01, E02, etc.)
3. Resume replication on the server
a. Get-StorageGroup -Server | Resume-StorageGroupCopy
4. Run Get-StorageGroupCopyStatus and check that CopyQueueLength and ReplayQueueLength are 0
5. Perform a switchover using Move-ClusteredMailboxServer and repeast the process on the former active (now newly passive) node.
6. Perform a FULL Backup. All previous backups are now invalid.

[PS] C:\>eseutil /mh F:\CCRMBX1\CCR-SG4.edb
Extensible Storage Engine Utilities for Microsoft(R) Exchange Server
Version 08.02
Copyright (C) Microsoft Corporation. All Rights Reserved.
Initiating FILE DUMP mode...
File Type: Database
Format ulMagic: 0x89abcdef
Engine ulMagic: 0x89abcdef
Format ulVersion: 0x620,12
Engine ulVersion: 0x620,12
Created ulVersion: 0x620,12
DB Signature: Create time:11/25/2008 16:50:25 Rand:102284345 Computer:
cbDbPage: 8192
dbtime: 165542 (0x286a6)
State: Dirty Shutdown
Log Required: 19010-19013 (0x4a42-0x4a45)

Also here there is a procedure to run a backup with windows 2008:

http://technet.microsoft.com/en-us/library/ee221177(EXCHG.80).aspx