[Networker] Blocksize, LTO4 tapes, Networker 7.4, Sun/Sparc Solaris 9

I'm running Networker 7.4 on a Sun/Sparc Solaris 9 server, with aSpectraLogic T50 jukebox, two LTO4 drives.

I want to verify what blocksize Networker is actually writing to the drives- I believe it's 64kb. These drives are much more efficient at 512kb.

I manually set the drives to 512kb, but (admittedly only one try) theycouldn't read a previously written to tape.

If I want to change to 512kb blocksize, will I have to relabel all thetapes?

Also, I believe I read somewhere that Networker always writes the labels at64kb and the backup data at something else.


Just beginning this investigation, and am looking to skirt red herrings.

Thanks.

--
lauradel collins/systems administrator  lauradel AT cs.uoregon DOT edu
computer science department             phone: 541-346-1389
university of oregon                    fax:   541-346-5373
eugene or 97403-1202

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