Citrix XenServer expand local storage
Posted on 2010-09-24
I want to expand local storage of a citrix xenserver but I don't know how to expand it in the xenserver itself.
I added the disk to the server, expanded the array with 4 extra disks and expanded the logical drive from 2 to 3 TB. Now xenserver still recognizes 2TB and I need to expand it there ... I found one procedure but I would like some more info/experience from other users. detail: SCSI disks
1. Expand physical disk (add more RAID members, ect). Use the procedure specific to your RAID card.
2. Use fdisk to expand the partition your Local Storage resides on:
[root@vps1a ~]# pvscan
PV /dev/sda3 VG VG_XenStorage-4c69467e-0352-5bd4-3dee-e17cc18aee08 lvm2 [923.64 GB / 380.14 GB free]
Total: 1 [923.64 GB] / in use: 1 [923.64 GB] / in no VG: 0 [0 ]
Note the bold type to the left, /dev/sda3 is the partition we want to expand by deleting and re-adding to the maximum size in fdisk. After you do this, you need to reboot so the OS will recognize the larger partition. The bold type to the right is the UUID we need later.
3. After rebooting, now we can expand the physical LVM volume:
4. Now we tell XenServer that we increased the size, so you can actually use your extra space:
xe sr-scan uuid=4c69467e-0352-5bd4-3dee-e17cc18aee08
Note: The UUID was discovered in step 2.
5. All done!