Re: RAID & HDD failure recovery

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, Nov 17, 2006 at 17:19:57 -0700,
  "David G. Miller" <dave@xxxxxxxxxxxxx> wrote:
> 
> BTW, to anyone reaching for their flamethrower, I don't want to start a 
> grub vs. lilo flame war so please don't.  If you have a *foolproof* and 
> *native* (doesn't rely on external commands) way to get grub to support 
> Linux software RAID, I'm more than willing to listen.  Hint, anything 
> that includes an instruction like "use dd to copy the MBR..." is a 
> non-starter.

The latest version (1.95) of grub 2 claims to support software raid.
However, it looks like it isn't really stable and there isn't documentation.

For the grub that comes with FC, it does work with RAID 1. You have to make
sure to install it on both drives. I am not completely sure, but in some
tests I did you can have stage 1 on both drives, but not stage 1.5.
What I do is:
root (hd1,0)  Assuming /boot is on the first partition.
setup (hd1)   This combination is what I think sets up stage 1.5 on hd1.
root (hd0,0)  This combination is so that if the current hd0 fails (so that
setup (hd1)   hd1 becomes hd0) it will use stage 1.5 from the correct drive.
setup (hd0)   Do the same for the normal boot drive.

At worst you will need to swap disks to be able to boot after a disk failure.
(So if you want to replace hd0 with a new drive, you need to put the current
hd1 on the cable currently used for hd0 and put the new drive on the cable
currently used by hd1.)

-- 
fedora-list mailing list
fedora-list@xxxxxxxxxx
To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
[Index of Archives]     [Older Fedora Users]     [Fedora Announce]     [Fedora Package Announce]     [EPEL Announce]     [Fedora Magazine]     [Fedora News]     [Fedora Summer Coding]     [Fedora Laptop]     [Fedora Cloud]     [Fedora Advisory Board]     [Fedora Education]     [Fedora Security]     [Fedora Scitech]     [Fedora Robotics]     [Fedora Maintainers]     [Fedora Infrastructure]     [Fedora Websites]     [Anaconda Devel]     [Fedora Devel Java]     [Fedora Legacy]     [Fedora Desktop]     [Fedora Fonts]     [ATA RAID]     [Fedora Marketing]     [Fedora Management Tools]     [Fedora Mentors]     [SSH]     [Fedora Package Review]     [Fedora R Devel]     [Fedora PHP Devel]     [Kickstart]     [Fedora Music]     [Fedora Packaging]     [Centos]     [Fedora SELinux]     [Fedora Legal]     [Fedora Kernel]     [Fedora OCaml]     [Coolkey]     [Virtualization Tools]     [ET Management Tools]     [Yum Users]     [Tux]     [Yosemite News]     [Gnome Users]     [KDE Users]     [Fedora Art]     [Fedora Docs]     [Asterisk PBX]     [Fedora Sparc]     [Fedora Universal Network Connector]     [Libvirt Users]     [Fedora ARM]

  Powered by Linux