[ale] md0 tasks taking 60-80% of CPU

Jeffrey B. Layton laytonjb at charter.net
Thu May 11 11:53:10 EDT 2006


That's what I suspected. Even my piddly little 40 GB takes a while.
I'm not sure why it has taken so long for 160 GB though. While
I haven't done it, there are ways to devote more CPU to the resync
process to speed it up. This may or may not be useful to you.

Enjoy!

Jeff

> Here they are. I'm guessing the "resync" state has something
> to do with the CPU usage...
>
> --------------/proc/mdstat:---------------
>
> Personalities : [raid1]
> md0 : active raid1 hda3[0] hdd3[1]
>       155637632 blocks [2/2] [UU]
>       [============>........]  resync = 63.2% (98368448/155637632) 
> finish=352.7min speed=2703K/sec
> md1 : active raid1 hda1[0] hdd1[1]
>       128384 blocks [2/2] [UU]
>      
> unused devices: <none>
>
> ---------------mdadm -D:-----------------
>
> /dev/md0:
>         Version : 00.90.01
>   Creation Time : Thu Mar 24 19:26:08 2005
>      Raid Level : raid1
>      Array Size : 155637632 (148.43 GiB 159.37 GB)
>     Device Size : 155637632 (148.43 GiB 159.37 GB)
>    Raid Devices : 2
>   Total Devices : 2
> Preferred Minor : 0
>     Persistence : Superblock is persistent
>
>     Update Time : Thu May 11 14:42:32 2006
>           State : active, resyncing
>  Active Devices : 2
> Working Devices : 2
>  Failed Devices : 0
>   Spare Devices : 0
>
>  Rebuild Status : 63% complete
>
>     Number   Major   Minor   RaidDevice State
>        0       3        3        0      active sync
>        1      22       67        1      active sync
>
>
> Robert Story wrote:
>
>   
>> On Thu, 11 May 2006 10:42:30 -0400 Michael wrote:
>> MS> can you cat /proc/mdstat for us?
>>
>> and 'mdadm -D /dev/md0'
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