[OpenIndiana-discuss] iostat

[Jason Matthews]

i would say so. they are 800gb intel dc s3700s

j. 

Sent from Jasons' hand held

On Oct 11, 2013, at 1:08 AM, Jonathan Adams <t12nslookup at gmail.com> wrote:

> do you have "Enterprise" grade disks in your machine?  We saw a lot of %b
> and %w associated with "Consumer" Seagate disks ... not all the time, and
> not for over a year in production, but once it started happening across
> multiple servers we cottoned on pretty quickly.
> 
> 
> On 10 October 2013 21:39, jason matthews <jason at broken.net> wrote:
> 
>> 
>> I am not sure when reporting zpool stats was introduced into iostat but i
>> love it. however, i am not sure what to make of it.
>> 
>> For instance, what does a wsvc time of 20 seconds tell me? seems like my
>> queue is too big but that is not reflected in individual device statistics.
>> in the case of zpools, is this some sort of reflection on transaction
>> groups?
>> 
>> can anyone explain why i see such large time associated with zpool in the
>> iostat output?
>> 
>> thanks,
>> j.
>> 
>>                    extended device statistics
>>    r/s    w/s        Mr/s   Mw/s    wait     actv  wsvc_t asvc_t  %w  %b
>>  device
>>    0.0 3958.7    0.0  300.7       0.1     18.8   0.0       4.7        0
>> 153   c3
>>    0.0   11.8       0.0    0.1         0.0      0.0    0.0       0.6
>>    0       0    c3t55CD2E400012A66Cd0
>>    0.0    0.0        0.0    0.0         0.0      0.0    0.0       0.0
>>    0       0    c3t55CD2E400012B753d0
>>    0.0 2679.7    0.0  149.1       0.1      9.9    0.0       3.7        5
>>    80    c3t50015178F36579E8d0
>>    0.0 1267.2    0.0  151.5       0.0      8.8    0.0       7.0        3
>>    73    c3t50015178F3657B74d0
>>    0.0    0.0        0.0    0.0          0.0      0.0    0.0       0.0
>>     0       0    c3t50015178F3657AECd0
>>    0.0    0.0        0.0    0.0         0.0       0.0    0.0       0.0
>>     0       0    c3t50015178F36579E1d0
>>    0.0    0.0        0.0    0.0         0.0       0.0    0.0       0.0
>>     0       0    c3t50015178F3657B85d0
>>    0.0    0.0        0.0    0.0         0.0       0.0    0.0       0.0
>>     0       0    c3t50015178F36579BAd0
>>    0.0    0.0        0.0    0.0         0.0       0.0    0.0       0.0
>>     0       0    c3t50015178F3657A05d0
>>    0.0    0.0        0.0    0.0         0.0       0.0    0.0       0.0
>>     0       0    c3t50015178F36579FEd0
>>    0.0    0.0        0.0    0.0         0.0       0.0    0.0       0.0
>>     0       0    c5
>>    0.0    0.0        0.0    0.0         0.0       0.0    0.0       0.0
>>     0       0    c5t4d0
>>    0.0 3946.1    0.0  300.6  80582.9 26.2 20421.0  6.6  88    89 data
>>    0.0   11.6    0.0    0.1  0.0  0.0    1.1    0.8   0   0 rpool
>> 
>> 
>> _______________________________________________
>> OpenIndiana-discuss mailing list
>> OpenIndiana-discuss at openindiana.org
>> http://openindiana.org/mailman/listinfo/openindiana-discuss
> _______________________________________________
> OpenIndiana-discuss mailing list
> OpenIndiana-discuss at openindiana.org
> http://openindiana.org/mailman/listinfo/openindiana-discuss