Dell MD3200i, MD3220i owner manual Create a New fdisk Partition on a Multipath Device Node, 181

\_ round-robin 0 [prio=1][enabled]

\_ 6:0:0:22 sdcl 69:144 [active][ghost]

where:

mpathb is the name of the virtual device created by device mapper. It is located in the /dev/mapper directory.

DELL is the vendor of the device MD3200i is the model of the device

Sdx is the physical path to the owning controller for the device Sdcl is the physical path to the non-owning controller for the device

Create a New fdisk Partition on a Multipath Device Node

The fdisk command allows creation partition space for a file system on the newly scanned and mapped virtual disks that have been presented to Device Mapper.

To create a partition with the multipathing device nodes /dev/mapper/mpath<x>, for example, use the following command, where mpath<x> is the multipathing device node on which you want to create the partition:

# fdisk /dev/mapper/mpath<x>

NOTE: The <x> value is an alphanumeric operating system dependent format. The corresponding value for mapped virtual disks can be seen using the previously run multipath command. See your operating system documentation for additional information on fdisk.

Add a new Partition to Device Mapper

The kpartx command adds the newly fdisk created partition to the Device Mapper list of usable partitions. See examples below, where mpath<x> is the device node on which the partition was created.

# kpartx –a /dev/mapper/mpath<x>

If successful the command does not display an output. To verify success and view exact partition naming, you can use these commands to see the full partition names assigned.

# cd /dev/mapper

Configuration: Device Mapper Multipath for Linux

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