4
Table of Contents
1. Overview
.....................................................................................................................
1
1.1. XenServer Hosts and resource pools
.................................................................
1
1.2. Networking
........................................................................................................
1
1.3. Storage
............................................................................................................
1
1.4. Command Line Interface
...................................................................................
2
1.5. How this Guide relates to other documentation
...................................................
2
2. XenServer Hosts and resource pools
............................................................................
3
2.1. Requirements for creating resource pools
...........................................................
3
2.2. Creating a resource pool
...................................................................................
4
2.3. Adding shared storage
......................................................................................
4
2.4. Installing and managing VMs on shared storage
.................................................
5
2.5. Removing a XenServer Host from a resource pool
..............................................
5
2.6. Backups
...........................................................................................................
6
2.7. Coping with machine failures
.............................................................................
7
2.7.1. Member failures
.....................................................................................
7
2.7.2. Master failures
.......................................................................................
8
2.7.3. Pool failures
...........................................................................................
8
2.7.4. Coping with Failure due to Configuration Errors
........................................
8
2.7.5. Physical Machine failure
.........................................................................
9
3. Storage
.....................................................................................................................
11
3.1. Overview
........................................................................................................
11
3.1.1. Storage repositories (SRs)
....................................................................
11
3.1.2. Virtual Disk Images (VDI)
......................................................................
11
3.1.3. Managing Storage
...............................................................................
12
3.2. Storage Repository Types
..............................................................................
12
3.2.1. Local Disks
.........................................................................................
13
3.2.2. Local hotplug devices
...........................................................................
13
3.2.3. Shared Network Attached Storage using NFS
........................................
13
3.2.4. Shared iSCSI Storage
.........................................................................
14
3.2.5. Shared LVM storage over FC or iSCSI hardware HBAs
..........................
15
3.2.6. Shared NetApp Storage
........................................................................
16
3.3. Storage configuration examples
.......................................................................
18
3.3.1. Creating Storage Repositories
...............................................................
18
3.3.2. Probing an SR
....................................................................................
19
3.3.3. Creating a local LVM SR (lvm)
..............................................................
21
3.3.4. Creating a local EXT3 SR (ext)
.............................................................
21
3.3.5. Creating a shared NFS SR (nfs)
...........................................................
21
3.3.6. Creating a shared LVM over iSCSI SR using the software iSCSI initiator
(lvmoiscsi)
....................................................................................................
22
3.3.7. Creating a shared LVM over Fibre Channel or iSCSI HBA SR (lvmohba)
......................................................................................................................
22
3.3.8. Creating a shared NetApp SR over iSCSI
.............................................
25
3.4. Managing Storage Repositories
......................................................................
25
3.4.1. Destroying or forgetting a SR
...............................................................
25
3.4.2. Introducing a SR
.................................................................................
26
3.4.3. Converting local Fibre Channel SRs to shared SRs
.................................
26
3.4.4. Moving Virtual Disk Images (VDIs) between SRs
...................................
27
3.4.5. Managing VDIs in a Netapp SR
...........................................................
28
3.4.6. Taking VDI snapshots with a Netapp SR
...............................................
28
3.4.7. Adjusting the disk IO scheduler for an LVM-based SR
............................
28
3.5. Managing Host Bus Adapters (HBAs)
..............................................................
28