Re: Disk I/O error while rebuilding an md raid-5 array

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On Mon, Feb 8, 2010 at 7:23 PM, Dawning Sky <the.dawning.sky@xxxxxxxxx> wrote:
> On Mon, Feb 8, 2010 at 3:23 PM, Dawning Sky <the.dawning.sky@xxxxxxxxx> wrote:
>> It appears clonezilla is using dd and the speed is extremely
>> slow (~5MB/sec) and it says it's gonna take 1 day to clone the 500GB.
>
> BTW, is it normal for dd to be this slow, or is there something wrong
> with my setup?  These are quite modern drives and should be able to
> handle sequential transfer of 10's of MB/s.  I have never used dd
> before so I don't have any experience.

dd should be pretty close to the max possible throughput of yer drive.
 For example, I dd'd a 1T WD black not too long ago & it was around
120MB/s on the outside & 70MB/s in the middle.

Wil
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