Del,
We are set up in a DAG, but the problem only seems to be with the incremental
(log) backups. The full backup truncates the logs fine, but the log backups do
not. On our Exchange 2007 servers using TDP 5.5 the logs were truncated after
either a full or a log backup. has this changed with TDP 6.4 and if not, where
should I see indication that TSM is instructing Exchange to perform the
truncation?
Thanks,
-steve
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Del Hoobler
Sent: Monday, July 08, 2013 10:12 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] TDP for Exchange2010 6.4.0.0 Incremental backups not
truncating logs
Hi Steve,
With Exchange 2010, especially when set up in a Database Availability Group
(DAG), the log truncation can be "delayed"
because Exchange must make sure all log updates are sent and committed in all
copies (active and passive) before it truncates the logs. A backup product
(like TSM) completes a full backup and reports the backup is successful to
Exchange.
It is then the responsibility of Exchange to perform the actual log file
truncation. You should see evidence of this notification to truncate logs in
the Windows Event log.
We have seen cases when Exchange is still failing to truncate logs. In those
cases, customers have needed to engage Microsoft support to find what is
preventing Exchange from performing the log truncation.
Thanks,
Del
----------------------------------------------------
"ADSM: Dist Stor Manager" <ADSM-L AT vm.marist DOT edu> wrote on 07/08/2013
09:42:04 AM:
> From: "Schaub, Steve" <steve_schaub AT BCBST DOT COM>
> To: ADSM-L AT vm.marist DOT edu,
> Date: 07/08/2013 09:42 AM
> Subject: TDP for Exchange2010 6.4.0.0 Incremental backups not
> truncating
logs
> Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT vm.marist DOT edu>
>
> Tsm server 6.2.4.0
> Tsm client 6.4.0.0
> Tdp client 6.4.0.0
>
> I have powershell scripts running our full & incremental Exchange
> 2010 backups.
> The full backups truncate the logs, but the incremental do not.
> I've read through the doc and googled, but haven't found any reason.
> Nothing obvious showing up in the app logs.
> Any help would be appreciated.
>
> Here are the pertinent commands/files:
>
> incremental backup command:
> & .\TDPEXCC BACKUP * INCREMENTAL /PreferDAGPassive /
> MinimumBackupInterval=10 /SkipIntegrityCheck /DAGNode=EXCHANGE2010 /
> BackupMethod=VSS /BackupDestination=TSM /LogFile=$myTsmSchedLog >
$myTempFile
>
> results:
> VSS Backup operation completed with rc = 0
> Files Examined : 3530
> Files Completed : 3530
> Files Failed : 0
> Files Deduplicated : 0
> Total Bytes Inspected : 3620460520
> Total Bytes : 3622488810
> Total LanFree Bytes : 0
> Total Bytes Before Deduplication : 0
> Total Bytes After Deduplication : 0
> Files Compressed By : 0%
> Deduplication Reduction : 0.00%
> Total Data Reduction Ratio : 0.00%
> The operation completed successfully. (rc = 0)
>
> dsm.opt:
> *====================================================================
> * Tivoli Storage Manager - BCBST Win Servers TDP Exchange Clients
> * Installed Fri 04/19/2013 11:30:58.60
> *====================================================================
> *====================================================================
> * Identification Section
> *====================================================================
> nodename xxxxxxxx_MAIL
> tcpserveraddress xxxxxxxx.bcbst.com
> tcpport 5002
> tcpclientaddress xxxxxxxx.bcbst.com
> tcpclientport 1510
> tcpcadaddress localhost
> tcpclientport 1510
> HTTPport 1581
> webports 1503,1504
> *====================================================================
> * TCP/IP Section
> *====================================================================
> commmethod TCPIP
> tcpbuffsize 512
> tcpwindowsize 1024
> diskbuffsize 32
> *====================================================================
> * CAD/Schedule Settings Section
> *====================================================================
> managedservices schedule
> errorlogretention 90
> schedlogretention 14
> schedmode polling
> queryschedperiod 1
> *====================================================================
> * Misc Section
> *====================================================================
> clusternode no
> passwordaccess Generate
>
>
> tdpexc.cfg:
> *********************************************************************
> * IBM Tivoli Storage Manager for Mail
> * Data Protection for Exchange Configuration File
> *********************************************************************
> LogFile tdpsched.log
> LogPrune 90
> MountWaitForData Yes
> MountWait Yes
> BackupMethod VSS
> TempLogRestorePath F:\tdp-temp
> TempDBRestorePath F:\tdp-temp
> MailboxRestoreUnread No
> StoreMailboxInfo NO
> Retries 4
> SkipIntegrityCheck YES
> Language ENU
> BackupDestination TSM
> LocalDSMAgentNode xxxxxxxx
> DAGNode EXCHANGE2010
> ImportVSSSnapshotsOnlyWhenNeeded NO
> VSSPOLICY * * INCREMENTAL TSM EXCHANGE_LOGS
> VSSPOLICY * * FULL TSM EXCHANGE_DB
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