Anyone experience this? We have about 500GB of mail in Zimbra (4.x). Backups worked ok for a short while, but now I've received an "allocation failed" error from netbackup two weekends in a row (full backups).

It seems the server runs out of memory during the full backup. Looking at weekdays even the incremental backups suck out almost all of the memory. We have not had these problems with any of our other servers...