TSM 6.3.5 on Windows, LTO6 drives in a TS4500.
Customer had an LTO4 drive go bad and damaged a dozen tapes (maybe more!) 
before we figured out which one was doing it and mothballed that drive.

Now trying to MOVE DATA, restore vol, audit, restore stgpool and otherwise fix 
the damaged tapes using LTO6 drives.

Trying to run AUDITs on these puppies takes 12 hours or more each, because the 
LTO drive just sits and whirs for a loooooooong time before deciding that it 
really, really can't read the bad spot and moves on to the next spot.

This is "normal" LTO behavior that I've seen before; appropriate I/O errors and 
tapealert msgs are issued, etc.  We know the cartridges do have bad spots, 
that's not the issue.

What I'd like to know is if anybody has figured out a way to control or adjust 
the interval before the drive gives up and moves on, this is way overkill.
Is that a settable parm in the driver perhaps?  or the library?



Wanda Prather  |  Senior Technical Specialist - TSM and DR consultant | 
Wanda.Prather AT icfi DOT com<mailto:Wanda.Prather AT icfi DOT com>  |  
www.icfi.com<http://www.icfi.com/> | 410-868-4872
ICF International - Enterprise and Cybersecurity Division | 7125 Thomas Edison 
Dr., Suite 100, Columbia, Md