[Veritas-vx] vxtrace output

[William Havey]

"op" is short for "operation". Each line in the output of vxtrace is
prefixed with a number. This "op number" tells you which other lines forms a
complete trace of an I/O. Examine the output of vxtrace for all lines
containing "4275" and all these lines represent one I/O.

On Mon, Sep 20, 2010 at 6:20 PM, Carl E. Ma <zhu_junca at yahoo.ca> wrote:

> Hi,
>
> We are using volume manager 5.0 on solaris 9. I have difficulty to
> interpret vxtrace output. What does "op" and "concurrency" stand for?
>
> ==example of output line===
> 4275 START write vdev homevol01 block 5771246912 len 128 concurrency 31 pid
> 6134
> 4254 END write vdev homevol01 op 4254 block 208575678 len 16 time 0
> ==end of example===
>
> Doug has a script using field $9 and $11 to determine whether this is a
> random or sequential operation. Is it still valid in latest vxvm?
>
> Thanks in advance,
>
> carl
>
>
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