Users Guide

To Reconfigure A Virtual Disk Expand Virtual Disk
Capacity - Step 2 of 3
NOTE: For RAID 10 partial virtual disks, there are only two methods to increase the disk size or capacity:
• Expanding the capacity by increasing the percentage value.
• Adding disks into the original RAID 10 virtual disk.
1.
Enter the percentage of the free disk size available by which you want to expand the virtual disk capacity.
The page displays the maximum free size available and the description of the selected RAID level.
2. Click Continue to go to the next page or click Exit Wizard if you want to cancel.
Virtual Disk Task - Reconfigure Step 3 of 3
Does my controller support this feature? See Supported Features.
The virtual disk reconfigure step 3 page enables you to review your changes before completing the virtual disk reconfiguration.
1. Review your changes. The New Virtual Disk Configuration table displays the changes you have made to the virtual disk. The
Previous Virtual Disk Configuration displays the original virtual disk prior to reconfiguration.
2. Click Finish to complete the virtual disk reconfiguration. To exit without changing the original virtual disk, click Exit Wizard.
NOTE: After the virtual disk reconfiguration process starts, the read and write policies temporarily revert to the
default settings until the process is completed.
Slow And Fast Initialize
Considerations For Fast Initialize
The Fast Initialize task initializes all physical disks included in the virtual disk. The Fast Initialize task updates the metadata on the
physical disks so that all disk space is available for future write operations. The initialize task can be completed quickly because the existing
information on the physical disks is not erased, although future write operations overwrite any information that remains on the physical
disks.
CAUTION:
Performing a Fast Initialize causes existing data to be inaccessible. This task should be considered data
destructive.
In comparison with the Slow Initialize task, the Fast Initialize task has the following advantages:
• The Fast Initialize task takes less time to complete.
• The Fast Initialize task does not write zeroes to the disk blocks on the physical disks. It is because the Fast Initialize task does not
perform a write operation, it causes less degradation to the disk than does the Slow Initialize task.
If you have had trouble with a physical disk or suspect that it has bad disk blocks, you may want to perform a Slow Initialize task, as this
task remaps bad blocks and writes zeroes to all disk blocks.
Considerations For Slow Initialize
The Slow Initialize task initializes all physical disks included in the virtual disk. The Slow Initialize task updates the metadata on the
physical disks and erases all existing data and file systems.
In comparison with the Fast Initialize task, you may want to use the Slow Initialize task if you have had trouble with a physical disk or
suspect that it has bad disk blocks. The Slow Initialize task remaps bad blocks and writes zeroes to all disk blocks.
The Slow Initialize task initializes one physical disk at a time. Each physical disk displays the Clear state while being initialized. While the
physical disk is in the Clear state, the
Cancel Clear physical disk task is available. Performing a Cancel Clear task on the physical disk
causes the Slow Initialize task to be canceled for the entire virtual disk and all member physical disks.
Formatting Or Initializing A Disk
To format or initialize a disk:
124
Virtual Disks