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Changing raid controller module ownership, Initializing a physical disk, Reconstructing a physical disk – Dell PowerVault MD3260i User Manual

Page 116: Initializing a virtual disk

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Changing RAID Controller Module Ownership

You can change which RAID controller module owns a virtual disk by using the set virtualDisk command. The
following syntax is the general form of the command:
set (allVirtualDisks | virtualDisk

[virtualDiskName] | virtualDisks [virtualDiskName1

... virtualDiskNameN] | virtualDisk <wwid> owner=(0 | 1)

Initializing A Physical Disk

CAUTION: When you initialize a physical disk, all data on the physical disk is lost.

You must initialize a physical disk when you have moved physical disks that were previously part of a disk group from
one storage array to another. If you do not move the entire set of physical disks, the disk group and virtual disk
information on the physical disks that you move is incomplete. Each physical disk that you move contains only part of the
information defined for the virtual disk and disk group. To be able to reuse the physical disks to create a new disk group
and virtual disk, you must erase all old information from the physical disks by initializing the physical disk.
When you initialize a physical disk, all old disk group and virtual disk information is erased, and the physical disk is
returned to an unassigned state. Returning a physical disk to an unassigned state adds unconfigured capacity to a
storage array. You can use this capacity to create additional disk groups and virtual disks.
To initialize a physical disk, run the following command:
start physicalDisk [enclosureID,slotID] initialize

where,

enclosureID

and

slotID

are the identifiers for the physical disk.

Reconstructing A Physical Disk

If two or more physical disks in a disk group have failed, the virtual disk shows a status of Failed. All of the virtual disks
in the disk group are no longer operating. To return the disk group to an Optimal status, you must replace the failed
physical disks. After replacing the physical disks, reconstruct the data on physical disks. The reconstructed data is the
data as it would appear on the failed physical disks.
To reconstruct a physical disk, run the following command:
start physicalDisk [enclosureID,slotID] reconstruct

where,

enclosureID

and

slotID

are the identifiers for the physical disk.

NOTE: You can use this command only when the physical disk is assigned to a RAID 1, 5, or 6 disk group.

Initializing A Virtual Disk

CAUTION: When you initialize a virtual disk, all data on the virtual disk and all information about the virtual disk
are erased.

A virtual disk is automatically initialized when you first create it. If the virtual disk starts exhibiting failures, you might be
required to re-initialize the virtual disk to correct the failure condition.
The initialization process cannot be cancelled once it has begun. This option cannot be used if any modification
operations are in progress on the virtual disk or disk group. To initialize a virtual disk, run the following command:
start virtualDisk [virtualDiskName] initialize

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