[Veritas-bu] Maximum mounts for an LTO-1 tape
2005-03-25 18:56:09
Subject: |
[Veritas-bu] Maximum mounts for an LTO-1 tape |
From: |
Len.Boyle AT sas DOT com (Len Boyle) |
Date: |
Fri, 25 Mar 2005 18:56:09 -0500 |
Hello Steven
What level of drive firmware are you using. Has the vendor offered any upgrades
to fix the write errors?
len
________________________________
From: veritas-bu-admin AT mailman.eng.auburn DOT edu on behalf of Green, Steven
Sent: Fri 3/25/2005 5:41 PM
To: 'veritas-bu AT mailman.eng.auburn DOT edu'
Subject: RE: [Veritas-bu] Maximum mounts for an LTO-1 tape
For what it's worth we have LTO-2 drives (IBM) in an STK library and I set the
max usage count to 5000 for this media. Why? The only info I could find on
media usages for LTO-2 was an IBM publication on the technical specs for LTO-2
drives and media and it stated a duty cycle of 5000 load/unload cycles.
Currently I have tapes with 300+ mounts and no sign of any problems. Of course
we do have NBU jobs that cough up an occasional read/write or position error -
but so far in almost every case the error is bogus because further testing of
the tape shows no media problem. My standard is that if a tape spits out any
hard write errors - I degaus & toss it. For read errors I'm more tolerant, but
have processes by which I track such errors by volser so I know the history (if
any) of past events. Hope this info helps...
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#!/usr/steve green :: TDS storage admin :: 608.664.8210 (desk) :: 608.219.2106
(cell)
It's not that I'm so smart, it's just that I stay with problems longer. A.
Einstein
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- [Veritas-bu] Maximum mounts for an LTO-1 tape, Anthony Guzzi
- [Veritas-bu] Maximum mounts for an LTO-1 tape, Cornely, David
- [Veritas-bu] Maximum mounts for an LTO-1 tape, Stump, Robert (Contractor) (J6B)
- [Veritas-bu] Maximum mounts for an LTO-1 tape, Jeff Lightner
- [Veritas-bu] Maximum mounts for an LTO-1 tape, Green, Steven
- [Veritas-bu] Maximum mounts for an LTO-1 tape,
Len Boyle <=
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