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Dell PowerVault MD 32XX/36XX Series Storage Arrays CLI Guide

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Set Virtual Disk Mapping

Description

This command defines the logical unit number (LUN) mapping between a virtual disk a host or host group. This command is applicable to virtual disks in either a disk group or disk pools.
  • NOTE: You cannot use this command for a snapshot virtual disk that is used in online virtual disk copy

Syntax

To map a PiT snapshot to the host, use the following syntax: 
create mapping virtualDisk="snapshotVirtualdiskName" logicalUnitNumber=LUN host="hostName"
For mapping Legacy snapshot and any virtual disk: 
set (virtualDisk ["virtualDiskName"] | virtualDisk <wwID> | accessVirtualDisk)
                                    logicalUnitNumber=LUN
                                    (host="hostName" |
                                    hostGroup=("hostGroupName" | defaultGroup)

Parameters

Parameter Description
virtualDisk The name of the specific virtual disk for which you want to define mapping. Enclose the virtual disk name in double quotation marks (" ") inside of square brackets ([ ]).

The World Wide Identifier (WWID) of the virtual disk for which you are setting properties. You can use the WWID instead of the virtual disk name to identify the virtual disk. Enclose the WWID in angle brackets (< >).

accessVirtualDisk The logical unit number for the virtual disk. The logical unit number is the only property that you can set for the virtual disk.
logicalUnitNumber The logical unit number that you want to use to map to a specific host. This parameter also assigns the host to a host group.
host The name of the host to which the virtual disk is mapped. Enclose the host name in double quotation marks (" ").
hostGroup The name of the host group to which the virtual disk is mapped. Enclose the host group name in double quotation marks (" "). defaultGroup is the host group that contains the host to which the virtual disk is mapped.

Notes

A host group is an optional topological element that you can define if you want to designate a collection of hosts that share access to the same virtual disks. The host group is a logical entity. Define a host group only if you have two or more hosts that can share access to the same virtual disks.

You can use any combination of alphanumeric characters, hyphens, and underscores for the names. Names can have a maximum of 30 characters.

The access virtual disk is the virtual disk in a SAN environment that is used for in-band communication between the MD storage management software and the storage array RAID controller module. This virtual disk uses a LUN address and consumes 20 MB of storage space that is not available for application data storage. An access virtual disk is required only for in-band managed storage arrays. If you specify the accessVirtualDisk parameter, the only property you can set is the logicalUnitNumber parameter.

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