#Villa's syslog

1. First, you have to determine the Storage-Repository-UUID:

xe sr-list

-> write down / take note of SR-UUID of the SR to delete

2. Find the corresponding Physical Block Device (PBD):

xe pbd-list sr-uuid=your-SR-uuid

-> write down / take note of PBD-UUID of the PBD to unplug and delete

3. Unplug the PBD:

xe pbd-unplug uuid=your-PBD-uuid

4. Delete PBD:

xe pbd-destroy uuid=your-PBD-uuid

5. Delete the association of your SR and the PBD:

xe sr-forget uuid=your-SR-uuid

Example

[root@XenXourceServer ~]# xe sr-list
 uuid ( RO) : 11af8e29-cbac-86fb-5178-c86c4818765f
 name-label ( RW): XenServer Tools
 name-description ( RW): XenServer Tools ISOs
 host ( RO): MacXen
 type ( RO): iso
 content-type ( RO): iso

uuid ( RO) : c906b1e7-5a1f-0c76-2316-c9fee0b229e5
 name-label ( RW): 500gbSSD
 name-description ( RW):
 host ( RO): MacXen
 type ( RO): lvm
 content-type ( RO): user

uuid ( RO) : f3e98aa3-ddd7-b3b5-cbca-5e1b32d7b1c2
 name-label ( RW): Removable storage
 name-description ( RW):
 host ( RO): MacXen
 type ( RO): udev
 content-type ( RO): disk

[root@MacXen ~]# xe pbd-list sr-uuid=c906b1e7-5a1f-0c76-2316-c9fee0b229e5
 uuid ( RO) : 9a6ca8dd-10f6-aa4b-afbc-548080067fd0
 host-uuid ( RO): c796b938-0da0-4223-97bc-8e241f99b184
 sr-uuid ( RO): c906b1e7-5a1f-0c76-2316-c9fee0b229e5
 device-config (MRO): device: /dev/sdb
 currently-attached ( RO): false

[root@MacXen ~]# xe pbd-unplug uuid=9a6ca8dd-10f6-aa4b-afbc-548080067fd0
[root@MacXen ~]# xe pbd-destroy uuid=9a6ca8dd-10f6-aa4b-afbc-548080067fd0
[root@MacXen ~]# xe sr-forget uuid=c906b1e7-5a1f-0c76-2316-c9fee0b229e5

To add a new Repository:

1. Run the following command to find the disk ID of the new device:

    # cat /proc/partitions
    A list of HDDs and partitions are displayed. Find out which device is your new local disk. Locate it by size. (This is probably “sdb” or “/cciss/c0d1p0”)
    # ll /dev/disk/by-id

2. Find the disk ID of the “sdb” or “cciss/c0d1”disk. The “scsi-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx” or “cciss-xxxxxxxxxxxxxxxxxxxxxxxxxx”format is required.
3. Run the following command to create an SR:

    # xe sr-create content-type=user device-config:device=/dev/disk/by-id/<scsi-xxxxxxxxxxxxxxxxxxxxxxxxx> host-uuid=<host-uuid> name-label=”Local Storage 2” shared=false type=lvm

   Or

    # xe sr-create content-type=user device-config:device=/dev/disk/by-id/<cciss-xxxxxxxxxxxxxxxxxxxxxxxxx> host-uuid=<host-uuid> name-label=”Local Storage 2” shared=false type=lvm