Qlogic/BSD Disklabels/RAID

Qlogic/BSD Disklabels/RAID

Post by DiskMa » Tue, 06 Jul 2004 08:27:43


I was wondering, is it possible to run a raid setup with a qlogic 1280 scsi
card and a pair of scsi drives? I had two 18gb drives and wouldn't mind
'raiding' them out but I receive errors stating that software raid doesn't
work with bsd labels?!?!?! Any ideas, thoughts, tips? Will L G
 
 
 

Qlogic/BSD Disklabels/RAID

Post by Ms Rullg » Tue, 06 Jul 2004 16:02:44

" DiskMan" < XXXX@XXXXX.COM > writes:


It will work. What will not work is automatic detection. There's no
problem with using PC partition tables on those drives, though, if
you're booting from something else.

--
Ms Rullgd
XXXX@XXXXX.COM

 
 
 

Qlogic/BSD Disklabels/RAID

Post by DiskMa » Thu, 08 Jul 2004 11:31:41

how would I get it to auto detect them?



scsi
doesn't
 
 
 

Qlogic/BSD Disklabels/RAID

Post by DiskMa » Fri, 09 Jul 2004 02:34:38

Doesn't the latest kernel autodectect and mount raid arrays? I wanted to
'raid' the whole damn thing but my /boot which would be ext3.... Will L G





mind
 
 
 

Qlogic/BSD Disklabels/RAID

Post by Ms Rullg » Sat, 10 Jul 2004 05:53:34

" DiskMan" < XXXX@XXXXX.COM > writes:




You need to use PC partition tables and mark the raid partitions with
type 0xfd (I think, fdisk will tell you the correct number). On boot,
the kernel will assemble the arrays automatically. You'll still need
to mount them explicitly. Just put a line in /etc/fstab for that.
Your arrays will be called /dev/md0, /dev/md1 etc. There is no
standard way of creating partitions inside raid arrays. There are
some patches floating around, but nothing in the official kernel.

--
Ms Rullgd
XXXX@XXXXX.COM
 
 
 

Qlogic/BSD Disklabels/RAID

Post by jalyv » Sat, 10 Jul 2004 10:21:20


The bsd labels might usefully be erased. Zap them with dd and then
repartition the drives. Then set up raid.

# dd if=/dev/zero of=/dev/sdb0 bs=1024 count=50

(copy 50 kbytes of zero into the disk)

(I might have misspelled the drive path...)

J
 
 
 

Qlogic/BSD Disklabels/RAID

Post by DiskMa » Thu, 22 Jul 2004 05:52:24

Hmmm I might go ahead and give it a shot but after getting everything back
up and running again, I don't want to take any chances.. I found conflicting
info on RAID all over the net... You can read more about my 'ordeal' at
http://www.yqcomputer.com/





scsi
doesn't