[CentOS] preferred software RAID 10?

John R Pierce pierce at hogranch.com
Wed Jun 25 17:58:00 UTC 2008

Rudi Ahlers wrote:
> And then, how do I setup the partitioning? Do I setup /boot on a 
> separate RAID "partition"? If so, what happens if I want to replace 
> the 1st 2 HDD's with bigger ones?

each partition is raided seperately with mdadm.... you could make the 
whole thing one LVM partition thats raid10, then use LVM to dice it up 
into file systems.

if you have 4 drives and are doing software raid10, you won't be 
swapping drives with different sizes without a WHOLE lotta pain.

/boot shouldn't be mirrored, as the BIOS won't know how to boot it. 
leave /dev/sdb1 the same size as /dev/sda1 and call it /boot2 and try to 
remember to copy /boot to /boot2 each time you update the kernel.

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