Difference between revisions of "Sar -d"

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:<code>sar -d</code> To report disk (block devices) activity. See also <code>[[iostat]] -x</code>.
  
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<pre>
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sar -d
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02:45:01 PM      DEV      tps    rkB/s    wkB/s  areq-sz    aqu-sz    await    svctm    %util
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02:46:01 PM    dev7-0      0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.00
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02:46:01 PM    dev7-1      0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.00
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02:46:01 PM    dev7-2      0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.00
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</pre>
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<code>%iowait</code> column from <code>sar</code> command also provide information about disk I/O requests.
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<pre>
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sar
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01:12:01 PM    CPU    %user    %nice  %system  %iowait    %steal    %idle
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01:13:01 PM    all      2.99      0.00      6.58      7.13      0.00    83.30
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01:14:01 PM    all      5.39      0.00      2.30      6.70      0.00    85.61
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01:15:01 PM    all      4.80      0.00      0.96      8.91      0.00    85.33
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01:16:01 PM    all      4.65      0.00      0.64      6.19      0.00    88.52
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</pre>
  
 
== See also ==
 
== See also ==

Revision as of 12:57, 18 December 2019

sar -d To report disk (block devices) activity. See also iostat -x.
sar -d
02:45:01 PM       DEV       tps     rkB/s     wkB/s   areq-sz    aqu-sz     await     svctm     %util
02:46:01 PM    dev7-0      0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.00
02:46:01 PM    dev7-1      0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.00
02:46:01 PM    dev7-2      0.00      0.00      0.00      0.00      0.00      0.00      0.00      0.00

%iowait column from sar command also provide information about disk I/O requests.

sar
01:12:01 PM     CPU     %user     %nice   %system   %iowait    %steal     %idle
01:13:01 PM     all      2.99      0.00      6.58      7.13      0.00     83.30
01:14:01 PM     all      5.39      0.00      2.30      6.70      0.00     85.61
01:15:01 PM     all      4.80      0.00      0.96      8.91      0.00     85.33
01:16:01 PM     all      4.65      0.00      0.64      6.19      0.00     88.52

See also

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