hi philippe
an issue....dont know if suse-7.0 allows root raid drive setup
like the old rh-6.2 used to do... ( though i never used it )
- upon booting the suse-7.0 installer....if it does NOT allow for
hda and hdb to be selected for fdisk....you're out of luck
to do mirroring....hda to hdb....
the easiest way, since you already have suse-7.0 already installed..
if both disks are the same size ??
dd if=/dev/hdba of=/dev/hdb bs=1024
if NOT the same size...you'd have to do each partition manually
using tar to transfer contents from hda1 to hdb1, hda2 to hdb2, etc
- might be easier to re-install and setup raid1 properly
with proper hardware and software
If continuing from existing suse-7.0 install...
- you'd need to periodically ( daily ) copy(backup) all changed files to
hdb
- i prefer controlled copying....so that if i accidentally
erase foo.c on hda.... i still have it on hdb
-- which ever method you pick for mirroring.....test it..
before you commit real data onto the disks...
- add files...delete files....
- power off and see if it did the right thing on both disks
- thinking outloud...what's the point of raid1 ( mirroring )...
- i would prefer to do "hourly incremental backups"
or backup as often as needed....
- if data on hda is erased.... it would be erased on hdb too
during the mirror'ing.... ( to me, thats bad....
- if it core dumps or creates a huge 10Mb file in /root or /usr
than i dont want these temp files mirrored to hdb either
to me...this is bad tooo...
- raid1 is still not a subsitute for a good backup plan...
to be able to receover all data without any loss
have fun
alvin
http://www.Linux-1U.net ...
On Tue, 24 Apr 2001, Philippe Trolliet wrote:
> hello,
> i want to setup raid 1 on a PC with suse linux 7.0 and its kernel 2.2.16.
> on this pc there�s linux already installed and i want to mirror the mounted
> root filesystem on a second harddrive.
> i need a documentation or some how-to�s.
> can anybody help me ?
> thanks a lot
> regards
> ph. trolliet
>
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