Dell PowerVault MD3820f - Manual (Page 81)

6. For manual configuration, the Manual Physical Disk Selection window is displayed:
a) Select the appropriate RAID level in Select RAID level. You can select RAID levels 0, 1/10, 5, and 6.
Depending on your RAID level selection, the physical disks available for the selected RAID level
are displayed in Unselected physical disks table.
b) In the Unselected physical disks table, select the appropriate physical disks and click Add.
NOTE: You can select multiple physical disks at the same time by holding <Ctrl> or <Shift>
and selecting additional physical disks.
c) To view the capacity of the new disk group, click Calculate Capacity.
d) Click Finish.
A message prompts you that the disk group is successfully created and that you should create at
least one virtual disk before you can use the capacity of the new disk group. For more information on
creating virtual disks, see
Creating Virtual Disks .
Locating A Disk Group
You can physically locate and identify all of the physical disks that comprise a selected disk group. An LED
blinks on each physical disk in the disk group.
To locate a disk group:
1. In the AMW, select the Storage & Copy Services tab.
2. Right-click on a disk group and select Blink from the pop-up menu.
The LEDs for the selected disk group blink.
3. After locating the disk group, click OK.
The LEDs stop blinking.
4. If the LEDs for the disk group do not stop blinking, from the toolbar in AMW, select Hardware →
Blink → Stop All Indications.
If the LEDs successfully stop blinking, a confirmation message is displayed.
5. Click OK.
Creating Standard Virtual Disks
Keep these important guidelines in mind when you create a standard virtual disk:
• Many hosts can have 256 logical unit numbers (LUNs) mapped per storage partition, but the number
varies per operating system.
• After you create one or more virtual disks and assign a mapping, you must register the virtual disk with
the operating system. In addition, you must make sure that the host recognizes the mapping between
the physical storage array name and the virtual disk name. Depending on the operating system, run
the host-based utilities, hot_add and SMdevices.
• If the storage array contains physical disks with different media types or different interface types,
multiple Unconfigured Capacity nodes may be displayed in the Total Unconfigured Capacity pane of
the Storage & Copy Services tab. Each physical disk type has an associated Unconfigured Capacity
node if unassigned physical disks are available in the expansion enclosure.
• You cannot create a disk group and subsequent virtual disk from different physical disk technology
types. Each physical disk that comprises the disk group must be of the same physical disk type.
NOTE: Ensure that you create disk groups before creating virtual disks. If you chose an
Unconfigured Capacity node or unassigned physical disks to create a virtual disk, the Disk
Group Required dialog is displayed. Click Yes and create a disk group by using the Create Disk
Group Wizard. The Create Virtual Disk Wizard is displayed after you create the disk group.
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