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vxstat: time since last reset?

Created: 24 Jan 2013 • Updated: 07 Mar 2013 | 1 comment
jf7640's picture
This issue has been solved. See solution.



I wonder if there is a way to determine the time since the last reset ('vxstat -r') of vxstat counters for some or all VxVM objects.

Or asked differently: When vxstat gives me data like

[root:/]# vxstat
                      OPERATIONS          BLOCKS           AVG TIME(ms)
TYP NAME              READ     WRITE      READ     WRITE   READ  WRITE
vol export         3423282  38233203 159756362 400100767    5.6   25.4
vol rootvol        8105850  30419736  73677793  65981077    2.8   36.8
vol swapvol        2636206    340972  42179296  55502576    7.4 5597.9
vol var            5190036  12921735 116372454 126819449    5.9   14.1
how can I be sure these counts accumulated since reboot of the server? Without the knowledge if/when the counters were reset the last time, the output of vxstat is of limited use. Instead, I have to reset the counters myself, thereby losing potentially valuable data that has accumulated over a long time.
So is there a way to determine the time of the last reset?
This example is from a very old VxVM 4.1 on Solaris 10, but the vxstat man page from 5.1 has no info about the time of the last reset either.

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TonyGriffiths's picture


As you mention, the vxstat counters are accumulative since the last reset: either a reboot or a manually reset using vxstat -g DG_NAME -r (needs a disk group).

If a manual reset has been invoked, then the command should show up in the command logs: /etc/vx/log/cmdlog, a long with the time