Datasheet

NEC Confidential

NEC Internal Use Only

5. Functions <Pool 4>

(2-3) Configuring Logical Disks

• The maximum number of logical disk is 1024 per 1 dynamic pool.

• The minimum capacity of logical disk for configuration is 1GB.

• The unit of logical disk for configuration is 1GB.

• The maximum size of a logical disk which can be used as a snapshot volume is 10TB.

• DDR and MV can be created up to 10TB.

• The logical disks can be used immediately after they are configured. (Quick LUN configuration

function) Formatting of logical disks is run in the background.

(2-4) Expanding Logical Disk Capacity Function

• Expansion can be executed on line during operation.

• Logical disk capacity can be expanded with retention of the existing data.

• When expanding a logical disk, unused space in the same pool is available for the expansion.

Note: The unused space must exist in a pool in which logical disks belong.

• After increasing capacity, the space, including any additional space, is available for use.

Note: The procedure for adding space vary depending on the server OS. Reboot may be required

depending on the OS.

OS Procedure

Windows Server 2003/2008 Extended volume is recognized with “diskpart” command

Linux

The file system can not be expanded when expanding a logical disk. Do the

following procedures;

a) Back up the contents of a logical disk to media such as a tape, etc.

b) Expand the logical disk.

c) Rebuild the file system in the expanded logical disk.

Note: The data in the logical disk is deleted.

d) Restore the data from backup media such as a tape in the rebuilt file system.

You can configure logical disks by allocating the required amount from the unused space in the

dynamic pool.