Rajagopal Swaminathan wrote:
> This list never ceases to amaze me with very very quick and educating responses
>
>
> John R Pierce <pierce@...> writes:
>
>
>> Rajagopal Swaminathan wrote:
>>
>> depends on your disk controllers. whats `iostat -x 5` say the IO on
>> hdb3 and hda3 is doing? (ignore the first sample, its average since
>>
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 0.13 0.00 31.98 0.00 0.00 67.89
>
> Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz
> await svctm %util
> hda 26.40 0.40 4.20 2.20 3660.80 20.80 575.25 2.74
> 386.97 148.44 95.00
> hdb 0.00 24.80 0.00 6.60 0.00 3988.80 604.36 1.43
> 217.45 143.24 94.54
> ...
>
> I won't claim I understand everyone of the above columns.
> I am in the process of reading man pages.
>
the import wants there are rsec/s and wsec/s which are read/write
sectors/sec, and %util which is %utilization. your disks are 100% busy,
and one is reading 3600 sector/sec which is 1.8MB/sec and the other is
writing that much.
there's no way in h*** a SATA disk should be that slow, my guess is the
SATA controller is runnign in IDE PIO mode. you also have 32% CPU
utilization, which is real high for just doing this.
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