One Disk Group (Raid 5), One Hot Spare; Creating Disk Groups; Creating Disk Groups Automatically - Dell NX3600 Deployment Manual

One Disk Group (RAID 5), One Hot Spare

CAUTION: Due to the large capacity and number of physical disks, the limitation to this option is the rebuild time. If
two disks fail simultaneously, data loss may occur.
Space This option consists of one RAID 5 disk group with two virtual disks and a single hot spare. The
disk group is made up of eleven, 2 TB physical disks with a total size of 20 TB. The NAS cluster
requires pairs of equal sized virtual disks. Therefore, the disk group is divided into two 10 TB
virtual disks to evenly utilize all available space in the disk group. You have 20 TB space to be
allocated for the NAS cluster.
High Availability A RAID 5 disk group can continue to execute read and write requests to all its virtual disks
after a single disk failure. As long as there is enough time to rebuild between failures, with the
hot spare, there can be two disk failures before read and write requests cannot be executed.

Creating Disk Groups

You can create disk groups either automatically or manually using the PowerVault MDSM.

Creating Disk Groups Automatically

NOTE: The following steps apply to PowerVault MDSM versions 10.84.x6.25 and later.
To create disk groups automatically:
1. Launch the PowerVault MDSM software on the management station.
2. Select the MD storage array you plan to use for your NAS storage.
3. Start the Create Disk Group Wizard using one of the following methods:
– On the Storage & Copy Services tab, select Unconfigured Capacity and then select Create Disk Group from
the pop-up menu. In version 10.80.x6.47 of the PowerVault MDSM, on the Logical tab, select Unconfigured
Capacity or right-click Unconfigured Capacity and select Create Disk Group from the pop-up menu.
– On the Hardware tab, select one or more unassigned physical disks of the same physical disk type, or right-
click the unassigned physical disk and select Create Disk Group from the pop-up menu. In version
10.80.x6.47 of the PowerVault MDSM, on the Physical tab, select one or more unassigned physical disks of
the same physical disk type or right-click the unassigned physical disks and select Create Disk Group from
the pop-up menu.
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