Hello,
Is the setup you describe below for a root raid partition as raid1? Sorry,
I don't have the original message...
I tried to make all my partitions raid1 with disk druid during the red hat
6.1 install, and discovered this isn't possible. I assume what you are
describing below is to make a separate /boot on each drive and use
separate lilo.conf files to boot the second drive if the primary fails?
A document on the redhat.com site says raiding your swap partitions is a
bad idea, because you will take a big performance hit if memory needed for
the raid in case of failure resides in swap. The machine I am configuring
is a dual 650 with 640mb of ram, but I thought the machine this is
replacing (a p3-450 with 256mb ram was enough and it goes a few kb into
swap). My question here is: if I just use 2 swap partitions that are not
raided and the memory needed for the raid lives in swap on the primary
drive that failed, are you not in the same position you were if you raided
your swap in the first place?
Anyway, I'd appreciate to here yours and others strategies for raid1
mirroring that lets you recover from a hard drive failure in the shortest
time possible, with the least human intervention. I understand that some
intervention will be required, but I'd like to make it as painless as
possible. Of course, I have backups and I'm working on a 2 node cluster,
but the second node isn't as powerful as the primary, so the idea would be
to get the primary back up as soon as possible.
Any help, tips and pointers are appreciated.
On Wed, 26 Jan 2000, Aaron Turner wrote:
>
>
> Eric,
>
> What you want is two lilo.conf files. Here's my lilo.conf for the
> secondary harddisk. YMMV.
>
> boot=/dev/sdb
> # the bios statement is important otherwise it will use 0x81 which won't
> # exist in a primary failure situation
> disk=/dev/sdb bios=0x80
> map=/boot2/map
> install=/boot2/boot.b
> prompt
> # Delay for 30 seconds
> timeout=300
> message=/boot2/lilo.message
>
> # Set Com1 as serial console
> serial=0,9600n8
>
> # Force eth0/eth1 to be 100Mbps Full-Duplex
> append="ether=0,0,0x30,eth0 ether=0,0,0x30,eth1 console=tty0 console=ttyS0,9600n8"
>
> image=/boot2/2.2.12-6.2-RAID
> label=raidroot
> root=/dev/md0
> read-only
>
> --
> Aaron Turner, Core Developer http://vodka.linuxkb.org/~aturner/
> Linux Knowledge Base Organization http://www.linuxkb.org/
> Because world domination requires quality open documentation.
> aka: [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED]
> The difference between `Unstable' and `Usable' is only two characters: NT
>
>
> --
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>
>
Regards,
Trevor Astrope
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