> -----Original Message-----
> From: Jason Lin [mailto:[EMAIL PROTECTED]]
> Sent: Monday, April 17, 2000 12:11 PM
> To: The coolest guy you know; [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]
> Subject: Re: mkraid /dev/md0;; appears to have ext2 filesystem...
>
> Hi everyone:
> I think I got a better understanding now.
> What I want to do is to make a raid1 device using a
> existing partition(of which the data I need to keep)
> and 2nd partition from 2nd hard disk.
>
> RedHat6.1 is installed and there are only two IDE
> hard disks(same capacity).
> After all the e-mails back and forth, I believe there
> are two ways:(although they are pretty similar)
>
> Assmuming /dev/hda7 contains the needed data and
> /dev/hdc8 is 2nd partition. We want to make a raid1
> device /dev/md0 on top of /dev/hda8 and /dev/hdc8.
Let me confirm, before I go too far. You've got 2 hard drives, and want to
create a mirror. You have some data that you want on keep on /dev/hda7.
The parts of the drive that you want to mirror are /dev/hda8 and /dev/hdc8.
Assuming that this is correct, just create your raidtab with /dev/hda8 and
/dev/hdc8 as RAID disks. Then copy the data that you want mirrored from
/dev/hda7 to /dev/md0. If this is not correct, say so, and post a message
saying exactly where the data you want to keep is, which partitions you want
to make into a RAID1 (mirror), and any other information I've forgotten to
ask for but you know we'll need. :-)
Greg
P.S. Jakob, do you have anything written up for creating a RAID from an
existing disk? If not, let me know and I'll play around with my test system
and write something up for you.
