Re: Add software RAID to woody box with ext3 fs
hi ya
On Tue, 4 Feb 2003, Steve Wollkind wrote:
> On Tue, Feb 04, 2003 at 11:03:16PM +0100, Alex Polite wrote:
> >
> > A hard drive on a firewall I maintain crashed. I just built a new
> > firewall using the bf2.4 woody installation floppies. I selected ext3
> > as my file system.
> >
> > I would like to add RAID-1 to this setup. How do I add RAID-1 without
> > rebuilding the file system?
i claim you cant ???
a. step one is to make sure your disk partitions are type "FD"
( raid autodetect -- NOT type 82 (default linux)
- if its NOT autodect, when you remove /dev/hda... you might
have a hard time booting from /dev/hdc and vice versa
- remove the drive at the cables ( simulate a disk crash )
b. assuming that bootup is NOT an issue.. than the rest of the
"mirroring" is good .. jsut create the necessary tables/files
and follow the various how-to's on converting an existing
system into a raid1 (mirror) system
c. think about why you want raid1 ...
- if data is written ... it is written to 2 disks .. good ...
and when you read it back.. you can read it back 2x faster
- if data is erased .... it is erased on both disks ... bad ..
( depending on point of view )
collection of raid howto
http://www.1U-Raid5.net/HowTo/SW-Raid-HOWTO.txt
-- and i want to build 8-12 laptop drives ( 80GB each)
in a raid5 config :-)
c ya
alvin
Reply to: