Dell MD3200i, MD3220i Advanced Features

50 Planning: MD3200i Series Storage Array Terms and Concepts

• 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 a MD3200i

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.

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.

Advanced Features

The RAID enclosure supports several advanced features:

• Virtual Disk Snapshots

•Virtual Disk Copy

• High Performance Tier

NOTE: Virtual Disk Snapshot, Virtual Disk Copy, and High Performance Tier are

premium features that must be activated separately. If you have purchased these

features, an activation card is supplied that contains instructions for enabling this

functionality.

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.

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