Setup Guide

60 Configuring Storage

Moving an SR Between Hosts

If you wish to remove an SR from an existing XenServer host and use it with a

different host, you must back up the SR from the first host and restore it on

the second host:

Access the

Backup, Update and Restore

menu in the local console on the

XenServer host or pool master.

Trigger an immediate metadata backup to the SR being moved using the

Backup Virtual Machine Metadata

menu option. The metadata backup

creates a backup VDI, if necessary, and attaches it to the host, and then

backs up all the metadata to that SR.

NOTE: The metadata backup process can be scheduled to occur daily,

weekly, or monthly using the Schedule Virtual Machine Metadata option.

Perform a metadata restoration operation using the

Restore Virtual

Machine Metadata

menu option. The metadata restoration operation can

restore only VM records associated with the selected SR, or all of the VM

records found.

NOTE: There is also an option to test which VMs will be imported without

actually performing the restoration operation.

Resizing An SR After Changing the Size of An

LVM-Based Storage Volume

If you change the size of a LVM-based volume (SAS, iSCSI, or Fibre

Channel)—for example, if you increase the size of the volume on your iSCSI

storage array—the size of the SR on that volume does not get updated.

Perform the following steps to adjust the size of the SR:

Shutdown all virtual machines on the SR.

Note the universally unique identifier (UUID) of the SR.

Ty p e t h e

xe sr-list

command on the XenServer host and identify the

SR by its name label.

Identify the Physical Block Device (PBD) UUID corresponding to the SR.

Type the following command on XenServer:

# xe sr-param-list uuid=

|grep PBD

where <SR UUID> is the UUID of SR noted in step 2