HP ProLiant ML310 G3 Storage Server - Manual (Page 43)

• Add new LUNs to the system.
The additional space is then extended through a variety of means, depending on which type of disk
structure is in use.
NOTE:
This section addresses only single storage server node configurations. If your server has Windows
Storage Server 2003 R2 Enterprise Edition, see the Cluster Administration chapter for expanding and
extending storage in a cluster environment.
Expanding storage
Expansion is the process of adding physical disks to an array that has already been 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 logical drive on the same array. Unlike drive expansion, the operating system must be aware
of changes to the logical drive size.
You extend a volume to:
• Increase raw data storage
• Improve performance by increasing the number of spindles in a logical drive volume
• Change fault-tolerance (RAID) configurations
For more information about RAID levels, refer to the Smart Array Controller User Guide, or the document
titled Assessing RAID ADG vs. RAID 5 vs. RAID 1+0. Both are available at the Smart Array controller
web page or at http://h18000.www1.hp.com/products/servers/proliantstorage/arraycontrollers/
documentation.html .
Extend volumes using Disk Management
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, mirrored volumes, or RAID 5 volumes.
For more information, see the Disk Management online help.
HP ProLiant ML310 Storage Server 43