[linux-lvm] LVM Questions

[Nicholas Muguira]

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

This email and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed.  If you are not the original recipient or the person responsible for delivering the email to the intended recipient, be advised that you have received this email in error, and that any use, dissemination, forwarding, printing, or copying of this email is strictly prohibited. If you received this email in error, please immediately notify the sender and delete the original.


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/linux-lvm/attachments/20080327/598dba0e/attachment.htm>