Dell MD3620I, MD3600I owner manual Disk Roaming, Host Server-to-Virtual Disk Mapping

•Migrating virtual disks to a storage array with no existing physical disks— Turn off the destination storage array, when migrating disk groups or a complete set of physical disks from a storage array to another storage array that has no existing physical disks. After the destination storage array has been turned on and has successfully recognized the newly migrated physical disks, migration operations can continue.

NOTE: Disk groups from multiple storage arrays should not be migrated at the same time to a storage array that has no existing physical disks. Use cold virtual disk migration for the disk groups from one storage array.

•Enabling premium features before migration—Before migrating disk groups and virtual disks, enable the required premium features on the destination storage array. If a disk group is migrated from an MD3600i storage array that has a premium feature enabled and the destination array does not have this feature enabled, an Out of Compliance error message can be generated.

Disk Roaming

You can move physical disks within an array. The RAID controller module automatically recognizes the relocated physical disks and logically places them in the proper virtual disks that are part of the disk group. Disk roaming is permitted when the RAID controller module is either online or powered off.

NOTE: The disk group must be exported before moving the physical disks.

Host Server-to-Virtual Disk Mapping

The host server attached to a storage array accesses various virtual disks on the storage array through its host ports. Specific virtual disk-to-LUN mappings to an individual host server can be defined. In addition, the host server can be part of a host group that shares access to one or more virtual disks. You can manually configure a host server-to-virtual disk mapping. When you configure host server- to-virtual disk mapping, consider these guidelines:

•You can define one host server-to-virtual disk mapping for each virtual disk in the storage array.

•Host server-to-virtual disk mappings are shared between RAID controller modules in the storage array.

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Planning: MD3600i Series Storage Array Terms and Concepts