On Tue, 24 Feb 2009 17:14:54 -0500 "Barclay, Daniel" <dan...@fgm.com> wrote:
> Jack Schneider wrote: > > On Tue, 24 Feb 2009 15:21:23 -0500 > > "Barclay, Daniel" <dan...@fgm.com> wrote: > > > >> Eduardo M KALINOWSKI wrote: > >>> Barclay, Daniel wrote: > ... > >>>> ... is GRUB taking advantage of the fact that the RAID metadata > >>>> is written at the end of a partition ... > >> ... > >>>> If so, how reliable is that? > >>>> > >>>> Should one put /boot on a plain, non-RAID partition on one disk > >>>> and ...maintain a backup /boot partition on > >>>> the second disk, or is it fine to put /boot on a mirrored > >>>> partition (so maintaining redundancy is automatic) and let GRUB > >>>> read the partition directly? > >>> ... why make things more complicated and not automatic? > >> ... I _am_ trying to avoid the > >> complicated and non-automatic solution (trying to check whether the > >> simpler solution is reliable). > ... > > > Hi, Daniel et al > > > > The following is an outline of my setup on a couple of the system > > disks. > > > > Roughly I have two md devices for the host system, md0 & md1: > > > > j...@host:~$ df -m > > Filesystem 1M-blocks Used Available Use% Mounted on > > /dev/md0 9389 7157 1755 81% / > > tmpfs 4005 1 4005 1% /lib/init/rw > > udev 10 1 10 2% /dev > > tmpfs 4005 0 4005 0% /dev/shm > > /dev/dm-0 40318 11628 26642 31% /home > > /dev/dm-4 19686 15356 3331 > > 83% /home/jack/XP_VDI /dev/dm-6 30238 7453 > > 21250 26% /home/jack/suse /dev/dm-2 3024 > > 70 2802 3% /tmp /dev/dm-1 8064 > > 3426 4229 45% /var /dev/hda 90 > > 90 0 100% /media/cdrom0 > > > > The only concern I have is that / is marginally small. It's > > expandable tho. > > /boot is just on /mdo. I have run without incident for over a year. > > But if you haven't had any disk-failure incidents, do you know whether > your setup will reliably work if either disk fails? (Did you mean > that you simulated disk failure?) > > > > Daniel Hi, Daniel Sorry, no failures to date. My thinking was since I was running testing I didn't want updates/bugs/my ineptitude to trash my data and other OS. This config allows me to change easily... of course I'm a Debian nooby. I can boot from either disk. I pulled a sata cable from one. Jack -- -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
