Re: Migrating to a RAID 1 setup (hardware RAID)
- From: dnoyeB <Fake@xxxxxxxxxxxxxxxxx>
- Date: Mon, 24 Apr 2006 22:04:08 -0400
Doug.Baggett@xxxxxxxxx wrote:
Thanks for the response. Your solution is close to the answer on
linuxquestions.org.
I don't have an identical drive handy unfortunately, but drives are
cheap so I'll pick up a couple.
---
I don't know anything about 3ware RAID cards, but the first thing you
need to do is make sure the linux kernel supports them.
1 - Check for support. If supported continue...
2 - Recompile kernel with support for your card
3 - Configure your boot loader to add the new kernel so you can boot it
(take care NOT to wipe out your existing kernel!!)
4 - Power off system. Install card. Hookup your existing drive to it.
5 - Turn on system. Boot new kernel. If all goes well it should boot
fine. If you recieve a kernel panic it will most likely be due to the
hard drive device name changing (because of the RAID card) and your
/etc/fstab will need to be edited. If this is the case you will need to
boot from your distros cd, mount your root fs and edit the fstab to
reflect the device name change. Reboot once again.
Once you can succesfully boot the new kernel with the ONE drive hooked
up to the card:
- Shutdown system. Power off.
- Hook up second drive to RAID card.
- Turn on system. Press whatever key combo it is to enter your cards
config utility. Follow instructions to mirror one drive to another.
Basically mirror your existing drive to the new drive. You SHOULD be
using exact same drives btw!
- Some RAID utilities will allow the system to mirror while you
continue to work. Others don't. The process could take a while.
- When it's done you now have a working hardware RAID setup.
--
3ware has a great utility for their raid. I just bought one. when you add the 2nd drive you wil lhave to go into the bios to tell the card its part of the array. after that boot as normal. The arry will begin to build after 10 minutes. Im not sure if thats only if you have the tools installed or if it will happen either way. I suspect it happens even without the tools installed.
im sure the 3ware site has info but you seem to hve it worked out. I just installed FC5 and mandrake and both handled the 3ware raid card by installing a driver when the install kernel was loading. So I'd say new kernels support it, but this card is a bit old anyway and so your probably supported in existing kernels as well.
--
Thank you,
"Then said I, Wisdom [is] better than strength: nevertheless the poor man's wisdom [is] despised, and his words are not heard." Ecclesiastes 9:16
.
- References:
- Migrating to a RAID 1 setup (hardware RAID)
- From: Doug . Baggett
- Re: Migrating to a RAID 1 setup (hardware RAID)
- From: John-Paul Stewart
- Re: Migrating to a RAID 1 setup (hardware RAID)
- From: Doug . Baggett
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