Tape device stats aren't currently supported in the Linux distros that
I've seen - the instrumentation isn't there in many of the block device
drivers.  I beleive this is also a limitation on HP/UX and some other
BSD-derived O/S's but I'm not sure on this.
 
If you're using SAN attached tape drives you can pull per port
information from your switches as a workaround, or piece together the
stats from each multiplexed stream over time.
 
Push your vendor to provide patches to enable iostat for block devices,
and to get them incorporated back into the base. 
 

 
________________________________

From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Hampus
Lind
Sent: 23 April 2007 16:33
To: veritas-bu at mailman.eng.auburn.edu
Subject: [Veritas-bu] iostat not showing tape stats - SLES 9...



Hi all,

 

I can't get any stats from my tape drives on my SLES9 media server with
iostat, I have tried most options to iostat... Is there other way to get
the tape stats? 

 

Thanks and regards,

 

Hampus Lind
Rikspolisstyrelsen
National Police Board
Tel dir: +46 (0)8 - 401 99 43
Tel mob: +46 (0)70 - 217 92 66
E-mail: hampus.lind at rps.police.se <mailto:hampus.lind at rps.police.se>
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