Creating Partitions and Volumes

Once the disk is initialised you can create a storage structure of partitions, logical drives or volumes. A newly-initialised disk is always configured as a basic disk by default. If you want to keep it as a basic disk, you can divide it into primary and extended partitions by right-clicking unallocated space and choosing New Partition.

If you create a primary partition, this partition becomes a logical volume. Once you have created an extended partition, you can right-click the partition again and choose New Logical Drive. Logical drives are logical volumes on an extended partition.

If you want to configure the disk as a dynamic disk, right-click its status box in Disk Management and choose Convert To Dynamic Disk, then right-click the unallocated space on the disk and choose New Volume. The New Volume Wizard will take you through the creation of supported volume types.

Mounting and Dismounting Volumes

You can mount and dismount volumes from the command line with the mountvol.exe command. On basic disks, if you type mountvol x: /p, where x: represents the volume’s drive letter, you can dismount a volume and take it offline.

The /p parameter is not supported on dynamic disks. The command mountvol x: /l displays the specified drive letter’s volume ID. By using the syntax mountvol x: volume_ID, you can assign a drive letter to the volume and remount it to bring it back online, eg: the command:

mountvol S:\\?\Volume{55e769f0-40d5-11d4-b223-806d6172696f}\

would assign drive letter S: to the specified volume.

You can also use Disk Management to mount and dismount volumes from the GUI. You can mount and dismount volumes by right-clicking a volume and selecting Change Drive Letter and Paths. By removing the drive letter and any other paths (mount points) for the volume, you take the volume offline.

Next: Converting Disks