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Re: [Q] iostat output question ???



--- mcclnx mcc <mcclnx yahoo com tw> wrote:

> We have several servers installed Redhat AS 2.1
> (update 3).  I use "iostat -x 5" to check I/O
> performance.  It show some disks 100% utilize
> always. 
> I don't think it is correct.  Does anyone know what
> wrong it is and how to reset?
> 
> Output of "iostat -x 5":
> 
> avg-cpu:  %user   %nice    %sys   %idle
>            0.00    0.00    0.00  100.00
> 
> Device:  rrqm/s wrqm/s   r/s   w/s  rsec/s  wsec/s
> avgrq-sz avgqu-sz   await  svctm  %util
> emcpowera
>            0.00   2.20  0.00  1.80    0.00   32.00  
> 
> 17.78  3620.00    0.00 5555.56 100.00
> emcpowera1
>            0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00     0.00    0.00   0.00   0.00
> emcpowera2
>            0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00     0.00    0.00   0.00   0.00
> emcpowera3
>            0.00   2.20  0.00  1.80    0.00   32.00  
> 
> 17.78   600.00    0.00 5555.56 100.00
> emcpowerc
>            0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00   660.00    0.00   0.00 100.00
> emcpowerc1
>            0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00   350.00    0.00   0.00 100.00
> sda        0.00  14.20  0.00  3.80    0.00  144.00  
> 
> 37.89     0.00    0.00   0.00   0.00
> sda1       0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00     0.00    0.00   0.00   0.00
> sda2       0.00  11.00  0.00  1.40    0.00   99.20  
> 
> 70.86     0.00    0.00   0.00   0.00
> sda3       0.00   3.20  0.00  2.40    0.00   44.80  
> 
> 18.67     0.00    0.00   0.00   0.00
> sdb        0.00   3.20  0.00  2.40    0.00   44.80  
> 
> 18.67     0.00    0.00   0.00   0.00
> sdb1       0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00     0.00    0.00   0.00   0.00
> sdb2       0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00     0.00    0.00   0.00   0.00
> sdb3       0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00     0.00    0.00   0.00   0.00
> sdb4       0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00     0.00    0.00   0.00   0.00
> sdb5       0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00     0.00    0.00   0.00   0.00
> sdb6       0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00     0.00    0.00   0.00   0.00
> sdb7       0.00   3.20  0.00  2.40    0.00   44.80  
> 
> 18.67     0.00    0.00   0.00   0.00
> sdc        0.00   1.00  0.00  1.00    0.00   16.00  
> 
> 16.00     0.00    0.00   0.00   0.00
> sdc1       0.00   1.00  0.00  1.00    0.00   16.00  
> 
> 16.00     0.00    0.00   0.00   0.00
> sdf        0.00   0.00  0.00  0.80    0.00   17.60  
> 
> 22.00 8588474.59    0.00 12500.00 100.00
> sdf1       0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00     0.00    0.00   0.00   0.00
> sdf2       0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00    10.00    0.00   0.00 100.00
> sdf3       0.00   0.00  0.00  0.80    0.00   17.60  
> 
> 22.00 8587094.59    0.00 12500.00 100.00
> sdg        0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00 8589734.59    0.00   0.00 100.00
> sdg1       0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00 8589414.59    0.00   0.00 100.00
> sdh        0.00   0.00  0.00  1.00    0.00   14.40  
> 
> 14.40 8588224.59    0.00 10000.00 100.00
> sdh1       0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00     0.00    0.00   0.00   0.00
> sdh2       0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00     0.00    0.00   0.00   0.00
> sdh3       0.00   0.00  0.00  1.00    0.00   14.40  
> 
> 14.40 8586984.59    0.00 10000.00 100.00
> sdi        0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00    80.00    0.00   0.00 100.00
> sdi1       0.00   0.00  0.00  0.00    0.00    0.00  
>  
> 0.00 8589404.59    0.00   0.00 100.00
> 
>
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