Re: Software RAID using Sarge Installer
John Fleming wrote:
> Would someone help me, preferably off-list if the question's too simple,
> know exactly what choices to make using the new Sarge installer and RAID 1
> for mirroring? During the partitioning, there is a chance to set up RAID 1,
> but I don't fully understand exactly what partitions are required. I just
> want a simple scheme with a root partition and a swap partition, plus
> whatever else is necessary for RAID 1.
>
> I have 2 identical HDDs. I know you need at least one (2?) partitions setup
> specificlaly for RAID. I could use some newbie help with this, and comments
> like RTFM or RTFA won't help. I'm begging for some hand-holding here! It
> seems that you need to setup / and swap, and -then- RAID partition(s)...? I
> can't seem to get it right.
The last time i tried, the installer didn't support installing to RAID /
or /boot, and this was a topic of some discussion on this list, since
some people think that the new installer is perfect and to think that
other people want it to support more features is just shocking! :-)
I used the HOWTO at http://alioth.debian.org/projects/rootraiddoc/ to
convert my system to RAID 1 after the install, and it worked well. I
chose the 2nd path, which was GRUB & initrd (lilo didn't work for me for
some reason).
Short summary:
hde (200 Gb)
hde1 1 Gb
hde5 4 Gb
hde6 rest of disk (195 Gb)
hdg exactly as hde
All partitions are type 0xFD (Linux RAID autodetect)
md0 = hde1 + hdg1 (/boot, ext3)
md1 = hde5 + hdg5 (swap)
md2 = hde6 + hdg6 (/, reiserfs)
My configuration looks as follows - if you can't work out the following
outputs, let me know and i'll explain further.
enoch:/root # df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/md2 190468740 54604380 135864360 29% /
tmpfs 258716 0 258716 0% /dev/shm
/dev/hda1 76920416 68312432 4700576 94% /spare
/dev/md0 964408 31776 883640 4% /boot
enoch:/root # swapon -s
Filename Type Size Used
Priority
/dev/md1 partition 3903672 1008 -1
enoch:/root # cat /proc/mdstat
Personalities : [raid1]
md0 : active raid1 hde1[0] hdg1[1]
979840 blocks [2/2] [UU]
md1 : active raid1 hde5[0] hdg5[1]
3903680 blocks [2/2] [UU]
md2 : active raid1 hde6[0] hdg6[1]
190474560 blocks [2/2] [UU]
unused devices: <none>
enoch:/root # fdisk -l /dev/hde
Disk /dev/hde: 200.0 GB, 200049647616 bytes
255 heads, 63 sectors/track, 24321 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hde1 * 1 122 979933+ fd Linux raid
autodetect
/dev/hde2 123 24321 194378467+ 5 Extended
/dev/hde5 123 608 3903763+ fd Linux raid
autodetect
/dev/hde6 609 24321 190474641 fd Linux raid
autodetect
enoch:/root # fdisk -l /dev/hdg
Disk /dev/hdg: 200.0 GB, 200049647616 bytes
255 heads, 63 sectors/track, 24321 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hdg1 * 1 122 979933+ fd Linux raid
autodetect
/dev/hdg2 123 24321 194378467+ 5 Extended
/dev/hdg5 123 608 3903763+ fd Linux raid
autodetect
/dev/hdg6 609 24321 190474641 fd Linux raid
autodetect
--
Paul
<http://paulgear.webhop.net>
--
Did you know? If you receive a virus warning from a friend and not
through a virus software vendor, it's likely to be a hoax. See
<http://paulgear.webhop.net/virus_hoaxes.html> for more info.
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