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тАО10-30-2001 11:23 AM
тАО10-30-2001 11:23 AM
Sar -d for tape devices
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тАО10-30-2001 11:41 AM
тАО10-30-2001 11:41 AM
Re: Sar -d for tape devices
sar -d will give you only for the active device
When you run sar probably your tape device was not at all active.
-USA..
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тАО10-30-2001 11:47 AM
тАО10-30-2001 11:47 AM
Re: Sar -d for tape devices
Sar -d only works for block devices. Under HP-UX the tape drives are character devices. Under some flavor of UNIX, there were both character and block devices associated with tape drives. In fact, you could even have a filesystem on a tape.
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тАО10-30-2001 11:48 AM
тАО10-30-2001 11:48 AM
Re: Sar -d for tape devices
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тАО10-30-2001 12:30 PM
тАО10-30-2001 12:30 PM
Re: Sar -d for tape devices
Take a look at the thread below,
http://us-support.external.hp.com/cki/bin/doc.pl/sid=19a11661100c6eb7e1/screen=ckiDisplayDocument?docId=200000009872497
hope this helps.
thanks
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тАО10-30-2001 01:13 PM
тАО10-30-2001 01:13 PM
Re: Sar -d for tape devices
sar, vmstat, iostat are not able to catch everything because of process scheduling. If you don't already have glance, you can install a trial version. glance will allow you to "watch" the device as it performs.
live free or die
harry