On 10/17/06, yu larry liu <[EMAIL PROTECTED]> wrote:
Jason,
One question for you. Is MPXIO enabled under your circumstance?
If MPXIO enabled, each lun should only be shown once when running format.
Thanks,
Larry
Roger Dong 已写入:
> Thanks for the information. We will work on this issue and keep you
> updated.
>
> Best Regards,
> Roger
>
> Jason King 写道:
>
>> I don't know if I'll be able to redo the setup to get more details,
>> but basically it was most obvious with a large number of luns
>> (several hundred) + veritas DMP + multiple paths to a clariion array.
>> Due to our setup, each lun on the Clariion showed up twice (one for
>> each controller) on every path to the array. Since DMP was being
>> used, this meant it looked like several thousand luns (a few hundred
>> luns x 2 controllers x 4-5 paths to the luns) was visible to the
>> system. Also, all the paths that went through the standby controller
>> showed up as offline, which probably contributed to the effect.
>>
>> On 10/15/06, *Roger Dong* <[EMAIL PROTECTED]
>> <mailto: [EMAIL PROTECTED]>> wrote:
>>
>> Hi Jason,
>>
>> How many disk/lun in your system which take two hours to lunch
>> 'format'?
>>
>> We are aware of one performance issue in format. 'format' check
>> disk on-line status each time after S10U1. It will cost 2 minutes
>> for each disk/lun. We are investigate to improve this now.
>>
>> We are not aware of cfgadm issue. We will investigate it and
>> update you later.
>>
>> Thanks,
>> Roger
>>
>>>
>>>> *From: * Jason King <[EMAIL PROTECTED]
>>>> <mailto:[EMAIL PROTECTED]>>
>>>> *Date: * October 11, 2006 9:01:24 PM MDT
>>>> *To: * [email protected]
>>>> <mailto:[email protected]>
>>>> *Subject: * *[storage-discuss] cfgadm & format performance*
>>>>
>>>> Unfortunately, I have no means to see if this is present in
>>>> Nevada, but on Solaris 10U1, we've encountered some issues where
>>>> cfgadm and/or format seems to suffer poor performance when the
>>>> number of luns and/or controllers increase.
>>>>
>>>> In one extreme case, it takes over two hours from the time
>>>> 'format' is launched to when it actually displays the list of
>>>> devices. cfgadm -al also takes a rather absurd amount of time.
>>>>
>>>> Are there any plans to possibly improve the responsiveness of
>>>> these commands?
>>>>
>>>>
>>>> This message posted from opensolaris.org <http://opensolaris.org>
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>>>
>>
>>
>
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