On Tue, Nov 06, 2007 at 12:03:19PM -0500, Aleksandr Nepomnyashchiy wrote: > - Should I "bplabel -d dlt3" for each tape as soon as it expires?
I don't think you can do that without changing your drive type as well. I wouldn't bother. I might try using 'dd' on a scratch tape to validate the capacity of them. What 'device' name do you use for the drives? > - Why do you think changing from DLT to DLT3 won't change the > performance? Because Netbackup doesn't control the performance of the drives, that's up to the OS and the driver that communicates with them. There's no difference between DLT/DLT2/DLT3 other than as "bins" to keep tapes and drives separated. If you only have one type of drive, it doesn't matter which type you use. > PS NetBackup 3.4 doesn't support DLTIV, but it supports DLT , DLT2 and > DLT3. I am using DLT7000 drives with DLTIV tapes and hope to get more > than 30-40G per tape. You should test that outside of netbackup. Put a scratch tape in a drive and write to it directly. How many 'zeros' (very compressible) can you put on? How much random data (uncompressible) can you put on? -- Darren Dunham [EMAIL PROTECTED] Senior Technical Consultant TAOS http://www.taos.com/ Got some Dr Pepper? San Francisco, CA bay area < This line left intentionally blank to confuse you. > _______________________________________________ Veritas-bu maillist - [email protected] http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
