IBM XIV Storage System Copy Services and Migration

c. Name: Enter a cluster name in the provided space.d. Click OK.2. To define a host:a. In the XIV GUI go to the floating menu Host and Clusters Hosts and Clusters.b. Choose Add Host from the top menu bar.i. Name: Enter a host name.ii. Cluster: If the host is part of a cluster, choose the cluster from the drop-down menu.iii. Click Add.iv. Select the host and right-click to bring up a menu, from which you choose AddPort.i. Port Type: Choose FC from the drop-down menu.ii. Port Name: This is a drop-down menu of WWPNs that are logged into the XIV butthat have not been assigned to a host. WWPNs can be chosen from the drop-downmenu or entered manually.iii. Click Add.iv. Repeat the above steps to add all the HBAs of the host being defined.7.3.3 Creating and activating a data migration volumePerform the steps explained below.Perform pre-migration tasks for the host being migratedTo perform pre-migration tasks:1. Back up the volumes being migrated.A full restorable backup must be created prior to any data migration activity. It is a bestpractice to verify the backup and to verify that all the data is restorable and that there areno backup media errors.2. Shut down the application/host.Before the actual migration can begin the application must be quiesced. This ensures thatthe application data is in a consistent state. Because the host may need to be rebooted anumber of times prior to the application data being available again, also consider thefollowing steps:– Set applications to not automatically start when the host operating system restarts.– Stop file systems from being automatically remounted on boot. For UNIX®-basedoperating systems consider commenting out all affected file system mount points in thefstab or vfstab.Note: In clustered environments you could work with only one node until the migrationis complete, so consider shutting down all other nodes in the cluster.3. Perform a point-in-time copy of the volume on the non-XIV storage device (if that functionis available on the non-XIV storage). This point-in-time copy is a gold copy of the data thatis quiesced prior to starting the data migration process. Do this before changing any hostdrivers or installing new host software, particularly if you are going to migrate boot fromSAN volumes.196 IBM XIV Storage System: Copy Services and Migration