Use this dialog to specify the level and overall capacity of the new . You can specify the capacity in two different ways: select from a list of capacity choices automatically generated by the storage management software, or manually select specific to obtain the capacity you required.
Use the following procedure to specify the RAID level and overall
capacity of the new disk group.
Important: If your contains mixed , you are only able to choose the for a single disk physical disk type to create the new disk group.
1
Select the RAID level that meets your data storage and protection requirements.
RAID level choices include , , , , and .
2
Select a method for defining which available disk physical disks to use in the disk group, and perform the appropriate action as described in the following table.
The Automatic method is selected by default. If you selected one or more unassigned disk physical disks in the Physical View, the Manual method is selected by default.
Note: The Manual method should only be used by experts who understand disk physical disk and optimal disk physical disk configurations. It is recommended that you select the Automatic method.
Method
Description and Action
Automatic
Enables you to select from a list of disk group capacity choices selected by the . A table displays disk group capacities, how many disk physical disks comprise the disk group, the speed of the selected disk physical disks, the disk physical disk type, and if enclosure loss protection is available.
Important: Your choice of RAID level affects the capacities of the listed disk groups. The RAID level chosen will determine how much capacity is allocated to redundant (consistency) information.
Action: Select a disk group capacity from the list of available capacity choices, and
click Next to continue the virtual disk creation process.
Manual
Enables you to select which specific disk physical disks comprise the disk group. A table displays disk physical disk location information and individual disk physical disk capacities.
Important:
This option should only be used by experts who understand disk physical disk redundancy and optimal disk physical disk configurations.
Your choice of RAID level affects the resulting capacity of the disk group. The RAID level chosen will determine how much capacity is allocated to redundant (consistency) information.
There are limits to how much disk physical disk space capacity you can have in a single disk group. These limits vary according to your .
Refer to the Storage System Product Release Notes
for specific limits.
Action:
a
Select the number of disk physical disks to include in the disk group from the Unselected physical disks area, and
click Add.
The Selected physical disks list displays the corresponding disk group capacity and the number of disk physical disks that comprise the disk group.
Important: If you selected RAID 1/10, you must add two disk physical disks at a time to ensure that a mirrored disk physical disk pair is selected. If you selected RAID 3 or RAID 5, you must add a minimum of three disk physical disks to create the disk group. If you selected RAID 6, you must add a minimum of five disk physical disks to create the disk group. If you do not choose the appropriate number of disk physical disks for the chosen RAID level, Add remains unavailable. Change your disk physical disk selections, and
click Add again.
To remove selected disk physical disks, highlight the disk physical disks in the Selected physical disks list, and click Remove. The disk physical disks are re-displayed in the Unselected physical disks list.
b
Click Calculate Capacity.
The capacity for the disk group, the total number of disk physical disks in the disk group, and whether enclosure loss protection has been achieved are displayed.
c
Important: Next
is unavailable until Calculate Capacity has been
clicked to update the disk group capacity being configured.
Click Next to continue the virtual disk creation process.
Frequently Asked Questions