Creating Disk Groups - Dell PowerVault MD3200 Owner's Manual

A disk group must be organized according to its related tasks and subtasks.
For example, if you create a disk group for the Accounting Department, you
can create virtual disks that match the different types of accounting
transactions performed in the department: Accounts Receivable (AR),
Accounts Payable (AP), internal billing, and so forth. In this scenario, the AR
and AP virtual disks probably need more capacity than the internal billing
virtual disk.
NOTE:
In Linux, the host must be rebooted after deleting virtual disks to reset the
/dev entries.
NOTE:
Before you can use a virtual disk, you must register the disk with the host
systems. See "Host-to-Virtual Disk Mapping" on page 119.

Creating Disk Groups

You can create disk groups using either Automatic configuration or Manual
configuration.
To create disk groups using automatic configuration:
1 To start the Create Disk Group Wizard, perform one of these actions:
• To create a disk group from unconfigured capacity in the storage
array—On the Logical tab, select an Unconfigured Capacity node,
and select Disk Group Create. Alternatively, you can right-click the
Unconfigured Capacity node, and select Create Disk Group from the
pop-up menu.
• To create a disk group from unassigned physical disks in the storage
array—On the Physical tab, select one or more unassigned physical
disks of the same physical disk type, and select Disk Group Create.
Alternatively, you can right-click the unassigned physical disks, and
select Create Disk Group from the pop-up menu.
• To create a secure disk group—On the Physical tab, select one or more
unassigned security capable physical disks of the same physical disk
type, and select Disk Group Create. Alternatively, you can right-
click the unassigned security capable physical disks, and select Create
Disk Group from the pop-up menu.
The Introduction (Create Disk Group) window is displayed.
2 Click Next.
The Disk Group Name and Physical Disk Selection window is displayed.
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Configuration: Disk Groups and Virtual Disks