MY company has been using NetBackup 5.0GA (MP5) for years flawlessly. It really is a great product. But starting this week it has gotten to a point where backups themselves work fine; however, the vast majority of restores are failing.
What we're seeing is that the server recognizes what tapes it needs, but it never bothers to mount them and it no longer lists the media server in the Activity Monitor. What's also disturbing is that there are no bprestore processes kicking off either.
I have created logging directories for most of the processes and pushed the logging up to level 5. I can't find anything that explains this in the logs. The client and the server recognize that a restore has been started, the server acknowledges what tapes it needs, and we've verified in the inventory that they're in the library and ready to go. In fact the data was backed up from a different server to those same tapes earlier in the morning! So, the tapes were recognized as there for the backup but aren't mounted for a restore only a few hours later! Everything is as it should be, but the server will no longer initiate a restore 75% of the time. We have not been able to come up with a correlation as to what causes a failed restore as opposed to a successful restore.
I am utterly baffled as to why NBU suddenly started to do this. There have been no server changes in months, yet this just started last week. If I can't figure out what's going on by Monday we're going to reapply MP5 on the server in case bprestore somehow became corrupted.
Has anyone ever seen anything like this?