Backup of Exchange DAG

Posted on 2011-03-03
Medium Priority
Last Modified: 2012-05-11

even with all the native protection offered by DAG, we will be continuing to backup Exchange 2010.
We have 3 databases in the DAG and all are active on a single server. The passive member of the DAG only contains passive DBs.

question: if we backup the Active copy using MS recommended method of VSS to truncate logs.
Do we need to do anything to the passive copy for log truncation? What mechanism is in place to allow us to keep the logs on the passive under control, or is that not an issue.
Question by:Intelli-Po
1 Comment
LVL 11

Accepted Solution

MichaelVH earned 1000 total points
ID: 35030176
Hi there,

log files in a passive database in a DAG are automatically truncated. However; you can customize the delay for this truncation if you'd like.

For more information, look here:

"TruncationLagTime   This parameter specifies the amount of time that the Microsoft Exchange Replication service should wait before truncating log files that have replayed into a copy of the database. The time period begins after the log has been successfully replayed into the copy of the database. The format for this parameter is (Days.Hours:Minutes:Seconds). The default setting for this value is 0 seconds. The maximum allowable setting for this value is 14 days. The minimum allowable setting is 0 seconds. Setting the value for truncation lag time to 0 turns off log truncation delay."


Featured Post

Train for your Pen Testing Engineer Certification

Enroll today in this bundle of courses to gain experience in the logistics of pen testing, Linux fundamentals, vulnerability assessments, detecting live systems, and more! This series, valued at $3,000, is free for Premium members, Team Accounts, and Qualified Experts.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

I am posting this in case anyone runs into similar issues that I did, this may save you a lot of grief: Condition: 1. Your NetBIOS domain name contains an ampersand " & " character.  (e.g. AT&T) 2. You've tried to run any Microsoft installation…
There are literally thousands of Exchange recovery applications out there. So how do you end up picking one that’s ideal for your business & purpose? By carefully scouting the product’s features, the benefits it offers you, & reading ample reviews f…
This video demonstrates how to sync Microsoft Exchange Public Folders with smartphones using CodeTwo Exchange Sync and Exchange ActiveSync. To learn more about CodeTwo Exchange Sync and download the free trial, go to: http://www.codetwo.com/excha…
This video shows how to quickly and easily deploy an email signature for all users in Office 365 and prevent it from being added to replies and forwards. (the resulting signature is applied on the server level in Exchange Online) The email signat…

587 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question