HP ProLiant Storage Server User Guide (440584-001, February 2007)

• Add new LUNs to the system.

The additional space is then extended through a variety of means, depend ing on which type of disk

structure is in use.

NOTE:

This section a ddresses only single storage ser ver node conﬁgurations. If your server has Windows

Storage Server 2003 R2 Enterprise Edition, see the Cluster Ad ministration chapter for expand ing and

extending storage in a cluster environment.

Expanding storage

Expansion is the process of adding phys ical disks to an array that has already b een conﬁgured. The

logical drives (or volumes) that exist in the array before the expansion takes place are unchanged,

because only the amount of free space in the array changes. The expansion process is entirely

independent of the operating system.

NOTE:

See your storage array hardware user documentation for further details about expanding storage on

the array.

Extending storage using Windows Storage Utilities

Volume extension grows the storage space of a logical drive. During this process, the administrator adds

new storage space to an existing logical drive on the same array, usually after the array has been

expanded. An administrator may have gained this new storage space by either expansion or by deleting

another lo

gicaldriveonthesamearray.Unlikedriveexpansion,theoperatingsystemmustbeaware

of change

stothelogicaldrivesize.

Youextendavolumeto:

• Increase raw data storage

• Improve p

erformance by increasing the number of spindles in a logical drive volume

• Change fault-tolerance (R AID) conﬁgu rations

For more information about RA ID levels, see the Smart Array Controller User Guide,orthedocument

titled Assessing RAID ADG vs. RAID 5 vs. RAID 1+0. Both are available at the Smart Array controller

web page or at h

ttp://h18000.www1.hp.com/products/servers/proliantstorage/arraycontrollers/

documen

tation.html.

Extend volumes using Disk Mana gement

The Disk Management snap-in provides management of hard disks, volumes or partitions. It can be

used to extend a dynamic volume only.

NOTE:

Disk Management cannot be used to extend basic disk partitions.

Guidelines for extending a dynamic volume:

• Use the Disk Management utility.

• You can extend a volume only if it does not have a ﬁle system or if it is formatted NTFS.

• You cannot extend volumes formatted using FAT or FAT32.

• You cannot extend striped volumes, mirro red volumes, or RAID 5 volumes.

For more information, see the D isk Managem ent online help.

HP ProLiant Storage Server