-b

Option to run the command in the background. This option is useful for the operations that take an extended amount of time, such as adding a mirror or extending a volume.

-o notrackalign

Disable track alignment on the disk where the volume resides.

-g<DynamicDiskGroupName>

Name of the dynamic disk group.

<VolumeName>

Name of the volume. This is a Storage Foundation-specific name that is used for internal processing.

The name is limited to 18 ASCII characters. It cannot contain spaces, slash mark (/), backslash (\), exclamation point (!), angle brackets (< >), or equal sign (=). Also, a period cannot be the first character in the name.

<Length>

Size of the volume; megabytes is the default. To indicate KB, add K to the number (500K); similarly, add G for GB and T for TB.

type={mirror|raid5|stripe} [,log]

Type of volume to be created. Default is a spanned volume. The [,log] argument in type adds a RAID-5 log for a RAID-5 volume or a dirty region logging (DRL) log for a mirrored volume during volume creation.

<alloc_attributes>

Allocation attributes for mirroring and striping volumes.

Mirror=<n>

or

Mirror=<n>, diskclass

Number of mirrors to be created for mirrored volumes. (Default is 2.)

Optionally specify a diskclass to use in mirroring. For example, Mirror=2,target specifies that volumes are mirrored between SCSI target addresses. Each mirror can contain disks from any number of instances of the diskclass, but different mirrors cannot use disks from the same instance of the diskclass.

Stripe=diskclass

Volumes are striped across instances of a particular diskclass. For example, Stripe=target specifies that volumes are striped between SCSI target addresses. Each column stripe can contain disks from any number of instances of the diskclass, but different columns cannot use disks from the same instance of the diskclass.

Wantmirror=diskclass

Specifies a diskclass to use in mirroring. However this constraint is ignored if the requested allocation cannot be satisfied.

Wantstripe=diskclass

Volumes are striped across instances of a particular disk class. However this constraint is ignored if the requested allocation cannot be satisfied.

diskclass {[!]diskclass:instance}

Diskclass specifies (or excludes) a particular type of disk grouping. For example, port specifies a group of disks on a port.

Instance specifies which grouping. For example, p1 specifies a particular grouping of disks.

Each type of diskclass has a particular format for specifying instances of the class. Multiple diskclass instances can be specified separated by a space.

Diskclass can be one of the following:

- target or t

Specifies the disks that have the same SCSI target address of the same port. The target is specified in the form p#t#

- enclr, e, or enclosure

Specifies the disks belonging to a particular enclosure.

- port or p

Specifies the disks that are connected to a particular port.

- channel or ch

Specifies the disks that are connected to a particular channel.

Column=<n>

Number of columns. Required for RAID-5 and striped volumes.

StripeUnit=<Width>

Stripe width of RAID-5/striped volumes in blocks (512 Kbytes). Allows the user to specify the stripe unit for RAID-5 and striped volumes.

Site

Name of the site on which a site-based volume is to be created or mirrored.

DriveLetter={A|B|...|Z}

The default is no assignment of a drive letter to the volume.

DrivePath=<DrivePath>

Used when you want to mount the new volume at a folder on a local NTFS volume. You can use this attribute as an alternative to the drive letter.

[!]<DiskName>...

Name of a disk or disks to include or exclude, such as Harddisk2. Parameters are used to specify disks for volume creation, mirroring, and extension.

The disk name can also be indicated by the internal disk name or by p#c#t#l#, where the #s correspond to port, channel, target, and LUN of a disk.

If disks are not specified, SFW selects the disks automatically within the specified disk group.