Re: non-optimal RAID 5 performance with 8 drive array

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Nicola Fankhauser wrote:
see [3] for a description of what I did and more details.

Hi Nicola,

I read your description with interest.

I thought I'd try some speed tests myself but dd doesn't seem to work the same for me (on FC3). Here's what I get:

[root@dude test]# dd if=/dev/zero of=/home/test/test.tmp bs=4096 count=100000
100000+0 records in
100000+0 records out


Notice there is no timing information.

For the read test:

[root@dude test]# dd of=/dev/null if=/home/test/test.tmp bs=4096
100000+0 records in
100000+0 records out

Again, no timing information.

Anyone know if this is a quirk of the FC3 version of dd?

R.
--
http://robinbowes.com

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