How to do mirroring in RedHat 9.0

[Suresh Patoria]

Hi to All,

Please provide me full procedure of mirroring in Redhat 9.0

Thanx in advance

[Alexander Chuzhoy]

First locate the example config file

slocate raidtab
ususally it's there:
/usr/share/doc/raidtools-/raidtab.sample
then copy this file to /etc directory as raidtab

cp /usr/share/doc/raidtools-/raidtab.sample /etc/raidtab

then start editing this file to suite your needs.

Take raid1 config as example and you can mark or delete all the rest from this file.

if you have IDE disks then change /dev/sda to /dev/hda respectively.


after finishing - issue this command
mkraid /dev/md? -depending on what you have left in your file as /dev/md?

this will start the raid
all you have left is to make the file system before you can mount the RAID

mkfs /dev/md?

and then mount /dev/md? /mnt


Best Regards...

[Suresh Patoria]

this will make any effect on my exsting data

Thanx

[Alexander Chuzhoy]

executing mkfs will delete all the data the was on the disks...

[Suresh Patoria]

There is anu way to do without loose my date to do mirror disk


Thanx

[Jerome Henry]

mkfs on the new volume will delete datas on the new volume if any... but you won't loose anything on the original volume you are going to copy...
no worry on that

j