Full and Incremental backups are the only type of backups that purge the transaction logs. As for brick level backups, my personal opinion of them is that they're a horrible kludge. As Ed Crowley puts it, they're intended for people who insist on managing their environment as if it was MSMail. :0) Implement deleted item and deleted mailbox recovery, and you'll probably never need a brick backup. They take ages to process, and are prone to errors as you've seen. Usually benign errors, though. You should be doing a full online backup of your storage group object, and as long as you're also backing up your system state, etc, you should be good to recover. Neil _____ From: Stelley, Douglas [mailto:dstelley@xxxxxxx] Sent: 22 August 2003 12:31 To: [ExchangeList] http://www.MSExchange.org/ We use Arcserve 2000 Advanced Edition with the Exchange backup agent on an Exchange 2K Server w/ all SP's. We do a full weekly backup with daily differentials. This is a brick backup. My question is for anyone who may do a similar backup. After the full backup, the logs are deleted, as they should be, but on the daily differential backup, they are not. I've gone over the Arcserve backup logs, and the only "errors" are for those mailboxes Exchange couldn't backup. These errors change daily (different people, different folders) Last night there were 15 "failed to open store" errors out of the 1250 mailboxes backed up. Is this what is causing the logs not to be deleted? On a similar note, Is doing a brick backup the best choice, or should I just do an Exchange backup, and skip the brick? Thanks -Doug ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: neil.hobson@xxxxxxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub') Confidentiality Notice: The information contained in this message may be legally privileged and confidential information intended only for the use of the individual or entity named above. If the reader of this message is not the intended recipient, or the employee or agent responsible to deliver it to the intended recipient, you are hereby notified that any release, dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error please notify the author immediately by replying to this message and deleting the original message. Thank you. ______________________________________________________ This email and any files transmitted with it are confidential and intended solely for the use of the individual to whom it is addressed. Any view or opinions presented are solely those of the author and do not necessarily represent those of Silversands. If you have received this email in error, please contact our Support Desk immediately on 01202 360360 or email help-desk@xxxxxxxxxxxxxxxxx http://www.silversands.co.uk ____________________________________________________