HP 226593-B21 Smart Array 5i Plus Controller and Battery Backed Write Cache En - Page 58

Extending Logical Drive Capacity

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Configuring an Array NOTE: The second logical drive is not accessible until the capacity expansion process on Logical Drive 1 is complete. Also, Logical Drive 1 is unavailable for any other process while it is undergoing an expansion, and no other logical drive in the system can be expanded, extended, or migrated during this time. Extending Logical Drive Capacity Logical drive capacity extension is the addition of storage capacity to an existing logical drive. For logical drive extension to be possible, sufficient free capacity must exist on the array. If necessary, create free capacity by deleting existing logical drives on the array or by performing an array expansion (see "Expanding Array Capacity"). Windows NT 4.0 and NetWare 5.x operating system support online logical drive capacity extension. Some operating systems also support offline capacity extension, which is carried out by backing up all data, reconfiguring the array, and restoring the data. Before extending logical drives, check the operating system documentation for current information, or contact your operating system vendor. NOTE: The extension process takes about 15 minutes per gigabyte. A logical drive is unavailable for any other process while it is undergoing an extension, and no other logical drive in the system can be expanded, extended, or migrated during this time. To extend the capacity of a logical drive: 1. Back up all data on the array. Although array expansion is unlikely to cause data loss, observing this precaution will provide additional data protection. 2. Select the logical drive in the Logical Configuration View window. 3. Click Extend in the Logical Drive box. The Extend Logical Drive screen displays the current capacity and overhead of the selected logical drive. The unshaded region on the slider scale shows the free capacity on the array that is available for extension. 4. Move the slider control to increase the size of the logical drive. NOTE: You cannot reduce the size of the logical drive from this screen. 5. Click Done to return to the ACU Main Configuration screen. 7-24 Compaq Smart Array 5i Plus Controller and Battery Backed Write Cache Enabler User Guide

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Configuring an Array
7-24
Compaq Smart Array 5i Plus Controller and Battery Backed Write Cache Enabler User Guide
NOTE:
The second logical drive is not accessible until the capacity expansion process on
Logical Drive 1 is complete. Also, Logical Drive 1 is unavailable for any other process
while it is undergoing an expansion, and no other logical drive in the system can be
expanded, extended, or migrated during this time.
Extending Logical Drive Capacity
Logical drive capacity extension is the addition of storage capacity to an existing
logical drive. For logical drive extension to be possible, sufficient free capacity must
exist on the array. If necessary, create free capacity by deleting existing logical drives
on the array or by performing an array expansion (see
“
Expanding Array Capacity
”
).
Windows NT 4.0 and NetWare 5.x operating system support
online
logical drive
capacity extension. Some operating systems also support
offline
capacity extension,
which is carried out by backing up all data, reconfiguring the array, and restoring the
data. Before extending logical drives, check the operating system documentation for
current information, or contact your operating system vendor.
NOTE:
The extension process takes about 15 minutes per gigabyte. A logical drive is
unavailable for any other process while it is undergoing an extension, and no other logical
drive in the system can be expanded, extended, or migrated during this time.
To extend the capacity of a logical drive:
1.
Back up all data on the array. Although array expansion is unlikely to cause data
loss, observing this precaution will provide additional data protection.
2.
Select the logical drive in the
Logical Configuration View
window.
3.
Click
Extend
in the
Logical Drive
box.
The
Extend Logical Drive
screen displays the current capacity and overhead of
the selected logical drive. The unshaded region on the slider scale shows the free
capacity on the array that is available for extension.
4.
Move the slider control to increase the size of the logical drive.
NOTE:
You cannot reduce the size of the logical drive from this screen.
5.
Click
Done
to return to the
ACU Main Configuration
screen.