[CentOS] preferred software RAID 10?
Rudi at SoftDux.com
Thu Jul 17 21:10:48 UTC 2008
John R Pierce wrote:
> 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.
Ok, so how do I do this? Let's say I have 4x 160GB HDD's now, and plan
on replacing them with 4x 500GB HDD's in the future?
What setup would help with a upgrade in the future?
> /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.
I understand this, but how do you boot from /boot2 on the second HDD if
the 1st have failed?
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