Hi,
You could still use raid using pvmove: You could create a raid and then
use pvmove to relocate data present on your disk to your new raid device.
cheers,
Jordi
Nicholas Muguira wrote:
I am trying to judge the ability of LVM to address a problem I
currently have, and I have few questions:
1) Is there a way to configure LVM so that the data on remaining PV’s
in a VG are is accessible after a PV fails?
2) Is there a way to configure LVM so that the LV will still be
accesible and readable/writable if a PV fails while in use?
3) Assuming groupings of external drives, can a LV be created and
exported on each group of the same name and then imported into
different systems. For example assuming 10 drives, drives a-e are in
group 1 and drives f-j are in group 2. Using System A with drives a-e
connect to /dev/sda-e create a parittion that spans the entire drive
for each drive. Create a PV on each partition (/dev/sd[a-e]1). Create
a VG named test with all partitions (/dev/sd[a-e]1). Create a LV that
covers all of the VG test. Mount the LV and format it (ext3 in this
case). Umount and vgexport the vg test. Repeat the steps with drives
f-j with same VG and LV names. Connect group 1 to System B and
vgimport VG test, create LV with it and mount the filesystem. Umount
the filesystem and disconnect group1. Connect group 2 to System B and
vgimport VG test and mount the filesystem (using LV previously created)?
Raid is unavailable due to already deployed hardware, and I realize
that LVM is not Raid and will not give me a means to recover the data
on the failed HDD.
Thanks,
Nick
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