Bug 147566 - iostat doesn't show tape devices
iostat doesn't show tape devices
Product: Red Hat Enterprise Linux 3
Classification: Red Hat
Component: sysstat (Show other bugs)
i686 Linux
medium Severity medium
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Assigned To: Ivana Varekova
Brian Brock
Depends On:
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Reported: 2005-02-09 07:46 EST by brent robson
Modified: 2007-11-30 17:07 EST (History)
1 user (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2005-05-06 09:21:59 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description brent robson 2005-02-09 07:46:19 EST
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5)
Gecko/20041107 Firefox/1.0

Description of problem:
iostat will only show disk devices, and does not
list tape devices.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1.  iostat -x /dev/st0

Actual Results:  [root@unbutest db]# iostat -x /dev/st0
Linux 2.4.21-4.ELsmp (unbutest.nsg.stercomm.com)        02/09/05

avg-cpu:  %user   %nice    %sys   %idle
           0.20    0.00    1.53   98.27

Device:    rrqm/s wrqm/s   r/s   w/s  rsec/s  wsec/s    rkB/s    wkB/s
avgrq-sz avgqu-sz   await  svctm  %util

Expected Results:  should have seen statistics for /dev/st0

Additional info:
Comment 1 Neil Horman 2005-05-06 09:21:59 EDT
This is NOTABUG.  iostat is only meant to show statistics for block devices, and
/dev/st0 is a character device:

[nhorman@hmsdreadnought nhorman]$ ls -l /dev/st0
crw-rw----    1 root     disk       9,   0 Jun 24  2004 /dev/st0

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