linux raid questions

[Daniel R. Kilbourne]

FYI - I was unable to get RAID working on RedHat with the 2.2.17 (or 2.2.16 
for that matter) kernel. I had to stick with the RedHat 6.2 stock kernel 
(2.2.14-5 I think)


At 03:10 PM 9/19/2000 -0400, Mark Szidik wrote:

>I am setting up software RAID in Linux for the first time.
>(I am going by the HOWTO for version .90 of the raidtool)
>
>I re compiled the 2.2.17 kernel and turned the MD option on.
>
>Reboot and now I can cat /proc/mdstat:
>Personalities : [1 linear] [2 raid0] [3 raid1]
>read_ahead not set
>md0 : inactive
>md1 : inactive
>md2 : inactive
>md3 : inactive
>
>I just want to do RAID 1, so here is my /etc/raidtab file:
>raiddev /dev/md0
>         raid-level              1
>         nr-raid-disks           2
>         nr-spare-disks          0
>         chunk-size              4
>         persistent-superblock   1
>         device                  /dev/sdb1
>         raid-disk               0
>         device                  /dev/sdc1
>         raid-disk
>
>Now I try to /sbin/mkraid /dev/md0 and I get the following:
>handling MD device /dev/md0
>analyzing super-block
>disk 0: /dev/sdb1, 17751793kB, raid superblock at 17751680kB
>disk 1: /dev/sdc1, 17751793kB, raid superblock at 17751680kB
>mkraid: aborted, see the syslog and /proc/mdstat for potential clues.
>
>Of course there is nothing in /var/log/messages and /proc/mdstat is
>unchanged at:
>Personalities : [1 linear] [2 raid0] [3 raid1]
>read_ahead not set
>md0 : inactive
>md1 : inactive
>md2 : inactive
>md3 : inactive
>
>
>Can anyone help me with this?
>
>
>Thanks,
>Mark
>
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___

Daniel R. Kilbourne
daniel.kilbourne@voyager.net
Voyager.net Network Engineer