Summary

This article describes how to add physical storage to a XenServer Host and make it available for use by the system.

Procedure

1. Power down the XenServer Host and add the new disk to the system.
   
   
2. Once the additional physical space has been installed and formatted, use the fdisk command with the -l switch to list the available devices.
   Something similar to the following should be displayed:
   # fdisk -l
   

   	Disk /dev/sda: 80.0 GB, 80026361856 bytes
   	255 heads, 63 sectors/track, 9729 cylinders
   	Units = cylinders of 16065 * 512 = 8225280 bytes
   	
   	   Device Boot      Start         End      Blocks   Id  System
   	/dev/sda1   *           1         499     4008186   83  Linux
   	/dev/sda2             500         998     4008217+  83  Linux
   	/dev/sda3             999        9729    70131757+  83  Linux
   			
   	Disk /dev/sdb: 73.3 GB, 73372631040 bytes
   	255 heads, 32 sectors/track, 17562 cylinders
   	Units = cylinders of 8160 * 512 = 4177920 bytes
   	ux
   	

3. Create the physical volume:
   pvcreate /dev/sdb
   
   
4. Extend the XenSource volume group to this new volume:
   vgextend VG_XenSource /dev/sdb
   
   
5. Reboot the server