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6
Domain Live Migration
This Chapter discusses live migration of domains to other, identical computers. You must use identical computers to perform live migrations, that is, the computer make and model number must be identical.
To perform live migration of domains, you must create a shared virtual disk before you perform the migration. This Chapter contains:
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Creating a Shared Virtual Disk for Live Migration
Migrating a Domain
6.1 Creating a Shared Virtual Disk for Live Migration
If you want to perform live migration of domains to other, identical, computers, you must create a shared virtual disk to be used during the live migration. You can set up a shared virtual disk in the following configurations:
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OCFS2 (Oracle Cluster File System) using the iSCSI (Internet SCSI) network protocol
OCFS2 using SAN (Storage Area Network)
NFS (Network File System)
This section discusses creating a shared virtual disk in these configurations.
6.1.1 Creating a Shared Virtual Disk Using OCFS2 on iSCSI
To create a shared virtual disk using OCFS2 on iSCSI:
1.Install the
rpm
2.Start the iSCSI service: service iscsi start
3.Run discovery on the iSCSI target. In this example, the target is 10.1.1.1: iscsiadm
This command returns output similar to:
10.1.1.1:3260,5
Domain Live Migration