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 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.