filesystem type "8e" or "fd" -- plz help

[Maaz]

I have created a volume group named "vol1", containing three PVs, which have their filesystem type "8e". and in vol1 i have created two lvms named lvm1 and lvm2.

now i want to create Raid 1, consisting lvm1 and lvm2 .. is it possible ?

I m asking this question bcause, to create a Raid, i always set the filesystem type of the partition "fd", while to create a lvm, the pv filesystem type must be "8e"

So i m confuse.

Plz help me
Thanks n Regards
Maaz

[Stuart Browne · Accepted solution]

Setting up raid on top of LVM is the wrong way around.

Normally you'd set up LVM on top of RAID, so the entire LVM has the stability of a raid-contaier backend.

As you've got it currently, if any of the LVM stuff dies, all of your raid and filesystems die. i.e. if a disk dies.

The other way around, if you create RAID first, and LVM over the RAID, if a disk dies, the redundant array keeps the LVM intact.

As VLM's dont have 'partitions' or a 'partition table', there's no way to set a partition-type.

[Maaz]

Thank Dear Stuart ;) and sory for ack tooo late ;(

Once again Thanks
Regards
Maaz