Re: IBM xSeries stop responding during RAID1 reconstruction

[Bill Davidsen <davidsen@tmr.com>]

Mr. James W. Laferriere wrote:

>     Hello Gabor ,
>
> On Tue, 20 Jun 2006, Gabor Gombas wrote:
>
>> On Tue, Jun 20, 2006 at 03:08:59PM +0200, Niccolo Rigacci wrote:
>>
>>> Do you know if it is possible to switch the scheduler at runtime?
>>
>> echo cfq > /sys/block/<disk>/queue/scheduler
>
>
>     At least one can do a ls of the /sys/block area & then do an 
> automated
>     echo cfq down the tree .  Does anyone know of a method to set a 
> default
>     scheduler ?  Scanning down a list or manually maintaining a list 
> seems
>     to be a bug in the waiting .  Tia ,  JimL

Thought I posted this... it can be set in kernel build or on the bloot 
parameters from grub/lilo.

2nd thought: set it to cfq by default, then at the END of rc.local, if 
there are no arrays rebuilding, change to something else if you like.

-- 
bill davidsen <davidsen@tmr.com>
  CTO TMR Associates, Inc
  Doing interesting things with small computers since 1979