On Thu, 2006-09-28 at 20:36 -0500, Les Mikesell wrote:
On Thu, 2006-09-28 at 18:16, rado wrote:
kk...the ide drives; hda and hdc...3 partitions 3 arrays md0 1 and 2 cat /proc/mdstat shows it's acting as it should.
Are you trying to add a 3rd partition to a raid created with only 2? I don't think that will work, although you could fail/remove an existing partition, then add the new one as a replacement.
no, no...the existing arrays already have the "3rd" partition...I just want to add another complete drive, already partitioned exactly like the 2 that are already running. No extras there...just another drive.
when I boot the system up, it sees the drive connect thru usb and calls it sda (for what reason I don't know. I partitioned it to the same specs as the 2 ide drives as per the bottom of fdisk -l.
USB/firewire drives are assigned the next available scsi device name as detected - doesn't make much sense to me either...
ummm...1.)I think this is part of the old raidtools thang...not mdadm but I am not sure. 2.) there is no man raidtab on this box which is a "everything" install..
Raidtab isn't used any more - it's all mdadm commands.
exactly and there is a ton of stuff out there about raidtab grrrr and for 2 or 3 versions now it's all been mdadmin and rh still talks about raidtab in there docs...but I guess if that's the only thing wrong w/rh then we in pretty good shape.
kk, right now...I just formatted all the partitions and (I should have done this before ) I am checking for bad blocks. If it finds some I'll just redo it or whatever I have to do. At one point I was able to mdadm /dev/md0 1 & 2 --add sda1 2 &3 and cat /proc/mdstat would show sda1 2 &3 as in the arrays but then they would not populate.
It's only going to rebuild the number of devices you gave in the create command (or whever disk druid set up if you did it that way). I'm not sure if there is any way to change that later.
oh, c'mon Les, don't tell me that!!! geez! kk, I have not found it yet but I'm looking for some way to first add a spare to the existing raid sys...then go for it. hint hint lol. geez I dunno!
another thing that bothers me is that, just for the hell of it I started a new install. went to disk druid and the usb (sda) never was an option; like it never/doesn't exist. so of course I just backed out of it.
there has to be a way. I'm sure there is, you are doing the exact same thing I am trying to do!
thx Les,
John Rose