Delete logical drives, Expand array, On the sa – HP StorageWorks 1500cs Modular Smart Array User Manual
Page 24
Modifying an existing configuration 24
Delete logical drives
This task deletes the selected logical drive and converts it into unused drive space. You can then use this
unused drive space to:
•
Create new logical drives ("
•
Migrate the RAID level or stripe size of an existing logical drive ("
•
Extend existing logical drives on the same array ("
operating system allows logical drive extension.
To delete a logical drive:
1.
Click Delete logical drives, and then click Begin.
2.
Select the logical drives that you want to delete, and then click Next. ACU displays a warning
screen to remind you that you will lose all data on the logical drive.
3.
Click Delete to continue, and then click Finish to accept the changes.
4.
Click Save to apply the changes to the system, and then click OK on the confirmation alert.
Expand Array
NOTE: The Expand Array task is listed only if there is an unassigned physical drive on the controller. The
unassigned drive must also have a capacity no less than that of a drive in an existing array. If these
conditions are not fulfilled, install at least one suitable drive on the controller, and then click Refresh.
This task increases the storage capacity of an existing array. You can use the additional storage space to:
•
Create new logical drives ("
•
Migrate the RAID level or stripe size of existing logical drives ("
•
Extend existing logical drives on the array ("
system allows logical drive extension.
IMPORTANT: An array expansion, logical drive extension, or logical drive migration takes about 15
minutes per gigabyte, or considerably longer if the controller does not have a battery-backed cache. While
this process is occurring, no other expansion, extension, or migration can occur simultaneously on the same
controller.
1.
Click Controller Settings, and verify that the Expand Priority setting is acceptable.
2.
Back up all data on the array. Although array expansion is unlikely to cause data loss, observing
this precaution provides additional data protection.
3.
Click Expand array, and then click Begin.
4.
Choose the array that you want to expand, and then click Next.
5.
Select the physical drives that you want to add to the array, and then click Next.
6.
Click Finish to accept the changes.
At this point (before clicking Save in the next step), you can create logical drives on the unused
space created by the expansion. You can also arrange to expand another array on the same
controller by repeating the previous steps. However, the controller can expand only one array at a
time. Remaining array expansions are queued.
7.
Click Save.
The controller now rearranges (re-stripes) the existing logical drives and their data so that they
extend over all the physical drives in the enlarged array.