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Migrations are allowed for the following RAID levels:
– RAID 0 to RAID 1
– RAID 0 to RAID 5
– RAID 1 to RAID 5
– RAID 1 to RAID 6
– RAID 1 to RAID 0
Note: Although you can apply RAID-level migration at any time, we
recommend you do so when no reboots are occurring. Many operating
systems issue I/O operations serially during a reboot. With a RAID-level
migration running, a boot can often take more than 15 minutes.
After a migration has been started, it runs in the background, in case you did
not change the default for the background initialization (BGI) setting. The
status of the virtual disk changes from Optimal to Reconstruction and
changes back after the task has completed successfully.
To remove physical drives:
a. Select Remove physical drive to remove a physical drive.
b. Select the physical drive you want to remove.
c. Click Go.
Note: When removing a drive, follow the steps, otherwise the drive might
not be stopped properly, which could damage the drive. The hard disk must
be allowed to spin down before you remove it from the slot.
To add physical drives:
a. Install any new disk and select Add physical drive to add a physical drive.
b. Click Go.
Note: To watch states of any ongoing background process, click the VD
Progress Info button shown in Figure 3-61 on page 169.
Physical Drives option
In the WebBIOS main window (Figure 3-54 on page 161), select Physical
Drives from the Controller Function menu (see Figure 3-54 on page 161).
On the panel that is displayed (shown in Figure 3-65 on page 175), you can
rebuild a drive either by selecting Rebuild, or by selecting Properties and then
working with the extended properties to do the rebuilding.
1
At the time of writing, the software User's Guide does not list this migration option. However we
verified that the option is available in our tests in our lab.
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Planning, Installing, and Managing the IBM System x3950 M2
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