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RAID 10 across 4 disks
Posted by: Haroon Anwar
Date: July 17, 2006 09:55PM

Dear All,

I hope this is the right place to post this question. I am using RHEL ES 4.0. I have got four disks installed in this server. sda, sdb sdc and sdd. I am trying to configure raid 10. But till now without any luck. Anaconda installation allows me to either configure Raid 0 or Raid 1.

What I want is sda2 and sdb2 configured into logical software partition md0 as Raid 1. sdc2 and sdd2 configured into md1 as raid 1. Then I want to combine md0 and md1 into md2 as raid 0 for best performance.

I can configure md1 and md0 using anaconda. I have to configure md2 from inside the OS. I can do it using mdadm and the output of /proc/mdstat shows me that its done. But, when I reboot, then md2 goes away. Its not persistent. I have contacted Red Hat but without any luck.

Since I have got 4 disks, raid 10 should be possible. Has any one been able to do it successfully on RHEL 4.0??

Thanks

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RAID 10 across 4 disks
July 17, 2006 09:55PM


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