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Old 10-08-2004, 01:33 AM   #1
Friarchen
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Registered: Sep 2004
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Question Use mdadm create raid-5 with parity error


I'm creating a raid-5 with parity as follows:
mdadm --create /dev/md1 --level=5 --raid-devices=4 --chunk=4 --parity=left-asymmetric /dev/sdb2 /dev/sdc2 /dev/sdb3 /dev/sdc3

And it shows such message:

mdadm: layout may only be sent once. Second value was left-asymmetric

The command's return value is 2, and the raid-5 device isn't created.

My system is : Suse Linux Enterprise Server 9 (i586)
mdadm's ver : mdadm - v1.5.0 - 22 Jan 2004

If I do the same thing by mdadm - v1.3.0 - 29 Jul 2003 or lower, it works well.

And if I get rid of the --parity=left-asymmetric, it also works well on both mdadm versions.

Is there anyone could tell me why????

Thanks.

Last edited by Friarchen; 10-08-2004 at 01:35 AM.
 
Old 10-08-2004, 02:12 AM   #2
Friarchen
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Registered: Sep 2004
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Sorry, I got it.

It is a bug of 1.5.0, and it had been fixed in 1.7.0.
 
  


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