System backup for RedHat

[Patrick Chim]

Hi,

I am using Red Hat Enterprise Linux AS release 3 and have a DLT VS80 connected to it. We have 2 disks running RAID0+1 and plan to add 1 more disk to form a new raid. So I need to backup the data first. After searching the forum, I prefer to use 'dump' to backup the filesystem. Is there a method to backup the whole Redhat into a bootable table just like 'ignite' in HP-UX ? If unfortunately, I need to re-create the RAID, then I must install the Redhat first and then restore the tape content, right ?

Regards,
Patrick

[Ravi_8 · Accepted solution]

Hi Patrick

I haven't seen any tool like ignite in Linux.
I am using the same concept now i.e install the Linux and restore from tape

[NiCK_76]

1/backup your data and config file
2/rebulid your raid
3/reinstall os
4/restore data

[Vitaly Karasik_1]

We use Mondorescue http://www.microwerks.net/~hugo/index.html
for disaster recovery, but you should check if Mondo will work with your RAID configuration.

[Ivajlo Yanakiev]

Yes Mondo is good :)
also you can use Kickstart to keep your system configuration.
Also if you want to get all geometry you can use DD

dd if=/dev/xxxxx of=/dev/st0

[Johannes Krackowizer_1]

hi patrick,

if you use lvm you can create an additional raid disk and then extend your original filesystem.

if you don't use lvm then the simpliest way would be to backup your data (/home, /opt, ...) and your config (/etc, ...). then rebuild raid and reinstall your os. patch it to the same state as your have before backup and then restore your backuped data and config.

best regards,

johannes

[Oliver Schwank]

Hello,

perhaps you should give system rescuecd a try:

http://www.sysresccd.org/

Bye

Oli