On Thu, Feb 2, 2017 at 5:41 AM, 강경원 <[email protected]> wrote:

> Hmm.. If we are using the mirrored disk the mirror data copy io will be
> counted or not?
>

Yes, an I/O submitted to the zpool will turn into at least 2 I/Os to each
side of the mirror. It could be more if the I/O spans vdevs in the mirrors
that make up the zpool.
Jerry


>
> On Feb 2, 2017 5:48 PM, "Joshua M. Clulow" <[email protected]> wrote:
>
>> On 1 February 2017 at 14:51, 강경원 <[email protected]> wrote:
>> > And in case of c0t10 disk, w/s 379 x svctime 2.2 != busy 34%
>> 
>> The "busy" (%b) column reflects the portion of the last sampling
>> interval during which one _or more_ commands was issued to the device.
>> Disks can have zero, one, or often many commands issued concurrently.
>> 
>> In the sampling interval, you've highlighted, c0t10d1 had at least one
>> command issued and outstanding for 34% of the time -- but some, or
>> many of those commands may have overlapped in their execution.
>> 
>> Cheers.
>> 
>> --
>> Joshua M. Clulow
>> UNIX Admin/Developer
>> http://blog.sysmgr.org
>> 
> *smartos-discuss* | Archives
> <https://www.listbox.com/member/archive/184463/=now>
> <https://www.listbox.com/member/archive/rss/184463/21516906-2011406d> |
> Modify
> <https://www.listbox.com/member/?&;>
> Your Subscription <http://www.listbox.com>
>



-------------------------------------------
smartos-discuss
Archives: https://www.listbox.com/member/archive/184463/=now
RSS Feed: https://www.listbox.com/member/archive/rss/184463/25769125-55cfbc00
Modify Your Subscription: 
https://www.listbox.com/member/?member_id=25769125&id_secret=25769125-7688e9fb
Powered by Listbox: http://www.listbox.com

Reply via email to