Avago Technologies MegaRAID Fast Path Software - Manual (Page 405)

LSI Corporation Confidential | July 2011 Page 405
MegaRAID SAS Software User Guide Chapter 10: Maintaining and Managing Storage Configurations | Making a Drive Offline or Missing
10.5 Making a Drive Offline or
Missing
If a drive is currently part of a redundant configuration and you want to use it in
another configuration, you can use the MegaRAID Storage Manager commands to
remove the drive from the first configuration and change the drive state to
Unconfigured Good.
CAUTION: After you perform this procedure, all data on that drive is lost.
To remove the drive from the configuration without harming the data on the virtual
drive, follow these steps:
1. In the MegaRAID Storage Manager window, select Go To >> Physical Drive >>
Make Drive Offline.
The drive status changes to Offline.
2. Select Go To >> Physical Drive >> Mark Drive as Missing.
The drive status changes to Unconfigured Good.
CAUTION: After you perform this step, the data on this drive is no longer valid.
3. If necessary, create a hot spare drive for the virtual drive from which you have
removed the drive. (See Section 8.3, Adding Hot Spare Drives .)
When a hot spare is available, the data on the virtual drive will be rebuilt. You can
now use the removed drive for another configuration.
CAUTION: If the MegaRAID Storage Manager software detects that a drive in a virtual
drive has failed, it makes the drive offline. If this situation occurs, you must remove the
drive and replace it. You cannot make the drive usable for another configuration by
using the Mark physical disk as missing command and the Rescan commands.
10.6 Removing a Drive You may sometimes need to remove a non-failed drive that is connected to the
controller. For example, you may need to replace the drive with a larger drive. Follow
these steps to remove a drive safely:
1. Click the icon of the drive in the left panel, and click the Operations tab in the right
panel.
2. Select Prepare for Removal, and click Go.
3. Wait until the drive spins down and remove it.
If you change your mind, select Undo Prepare for Removal and click Go.