problem with RAID 1, LVM on Red Hat 5.3

[kingcasino]

Hi all,

I have a Dell workstation, 2 HDD, HDD 1 setuped Red Hat 5.3 with LVM, and that HDD 2 is empty....not install RAID 1...

And, i want to setup RAID 1 (hardware RAID)...but, have a problem...

I don't want to lost data on HDD 1 when i setup raid, i try ghost or backup it...,but when i restore, it error because LVM is setup on that...

Have another solution ?

Please help...very very emergency

Thanks all, have a nice day...

[Rubberman]

I think you can setup the RAID for mirroring even with LVM installed, but it depends upon the device (raid controller) you are using. At worst, you will have to backup data to external drive, reconfigure your system to RAID-1, then restore data to RAID device(s). Once you have the RAID configured, you can set it up as an LVM, before you restore the data from external device. In any case, if this is your boot/system drive(s), then you will need to do a full reinstall of the OS, reinstall all required applications, and only restore your data - not system files... Not fun.

[Manko10]

If it is a real hardware RAID there should be no problem. If it's just fake hardware RAID (e.g. the RAID controller of your motherboard) you might need to back up your drive as Rubberman wrote.

[kingcasino]

Thanks....

I decide setup RAID before reinstall RHL5, a i want setup it like old system, this is partitions setuped on old my system...

df -h

Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
228G 5.1G 211G 3% /
/dev/sda3 190M 13M 169M 7% /boot
tmpfs 36G 0 36G 0% /dev/shm

and

fdisk -l

Disk /dev/sda: 320.0 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sda1 1 10 80293+ 6 FAT16
/dev/sda2 11 794 6297480 c W95 FAT32 (LBA)
/dev/sda3 * 795 819 200812+ 83 Linux
/dev/sda4 820 38913 305990055 5 Extended
/dev/sda5 820 38913 305990023+ 8e Linux LVM

i want to install new RHL5 like old system above...

But when config partiton, i not config like above...

/dev/sda1 1 10 80293+ 6 FAT16
/dev/sda2 11 794 6297480 c W95 FAT32 (LBA)

like above...

have you another ideas ? and how to config it ?

Thanks all

[Rubberman]

Why the FAT partitions? They aren't particularly useful for Linux systems, especially since you don't have DOS/Windows installed on it. Just because it was that way before doesn't mean you can't do it better now.