Re: setting up RAID
hi ya lindsay
i seen you been doing some homework
On Tue, 25 Mar 2003, Lindsay Yardley wrote:
> G'day all,
> I'm setting up a RAID1 set in debian 3r0.
> I checked /proc/mdstat & got the following:
> Personalities: [raid1]
notice ... [raid1]....
> read_ahead not set
> unused devices: <none>
>
> hmmm, I got RAID support, woopeee
> I setup a /etc/raidtab file like this:
> raiddev /dev/md0
> raid-level 0
notice it says raid0 .... am confused ...
think you want to use mirroring ???
( should be raid-level 1 )
raid0 == stripping "hda PLUS hdc == much bigger disk"
raid1 == mirroring "hda" copied to "hdc"
httpd://www.1U-Raid5.net/Differences
example /etc/raidtab
http://www.1U-Raid5.net/Conf/
> nr-raid-disks 2
> nr-spare-disks 0
> chunk-size 4
> persistant-superblock 1
> device /dev/hde1
> raid-disk 0
> device /dev/hdg1
> raid-disk 1
good on devices above :-)
if you want info on chunk-size and persistant-superblock etc
http://www.1U-Raid5.net/ChunkStride/
( yeah... you can sorta use customary defaults for chunksize )
aint "Raiding" fun ???
have fun
alvin
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