I'm trying to restore a file on a filer (via NetBackup) and the restore is *crawling* (a few KB/s on avg).
One test I'd normally do would be to simply mount this tape up on the system and test that I could read it quickly. Is there any way to do this directly on the filer? I see 'dd', but I don't see how to read from the tape device.
I don't think I can run a 'restore' because the data on the tape will be wrapped with NetBackup header information. I just want to test that the data can be read quickly. So actually interpreting the data isn't important at this point.
Thanks.
Background: Directly attached LTO3 drive. Backups are normally nice and speedy (50+ MB/s). ndmpd probe suggests that it's read 15GB of data in over 24 hours. *way* too slow.