I too am sharing the same issue regarding SAN file systems and Linux LVM. I have a device presented via FC on RHEL 3 update 3. I'm using the LVM provided by RedHat:
lvm-1.0.8-5
I started with a simple raid 5 configuration with 3 disks (approx 135GB). Now I've added 1 more disk into the array (Done on a DS4300).
When I created the file systems I did so as such:
pvcreate /dev/sdc
vgcreate <volgrp_name> /dev/sdc
lvcreate -L +45G -n <lv_name> <volgrp_name>
mkfs -j /dev/<volgrp_name>/<lv_name>
So far so good. Partitions mount up and work fine. I've even gone through and modified <lv_name> by removing the journal file, resizing and remounting with good success. My problem is now that I've added in another disk (capacity now approx 200GB) I cannot grow the vg:
# vgextend <volgrp_name> /dev/sdc
vgextend -- INFO: maximum logical volume size is 2 Terabyte
vgextend -- ERROR: physical volume "/dev/sdc" already belongs to volume group "<volgrp_name>"
As discussed in previous messages I could simply create a partition and add it in. I've gone down that road, but with the inability to grow a physical partition (tried via parted) that too didn't work well. To me it doesn't seem that this should be outside of normal expectations but there doesn't seem to be a lot of information regarding LVM and SANs.
Regards,
Kreig
_______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
