3.5.1 Matrix Server Administration Guide

Chapter 7: Configure PSFS Filesystems 104

The -o option has the following parameters:

• blocksize=#

The block size for the filesystem. For a 32-bit operating system, the

valid block size is 4096, or 4K. For a 64-bit operating system, the valid

block sizes are 4096, 8192, 16384, and 32768. The block sizes can also

be specified as 4K, 8K, 16K, and 32K.

• disable-fzbm

Create the filesystem without Full Zone Bit Maps (FZBM). See the

PolyServe Knowledge Base article “Using the FZBM On-Disk

Filesystem Format” for more information about this feature.

• enable-quotas

Enables quotas on the filesystem.

• userdefault=<size> and groupdefault=<size>

Set the default quota limit for users or groups, respectively, to size

bytes. (The defaults are rounded down to the nearest filesystem

block.) The <size> argument can include one of the following optional

modifiers to specify the unit: K (kilobytes), M (megabytes), G

(gigabytes), or T (terabytes). If one of these modifiers is not specified,

the <size> will be interpreted in bytes. If the default quota limit is not

specified on the command line, the limit will be set to 0, which means

there is no default limit.

The userdefault and groupdefault parameters are invalid if the enable-

quotas parameter is not also specified.

The following command shows the syntax for the quotas parameters:

mkpsfs -o enable-quotas,userdefault=#[T|G|M|K],

groupdefault=#[T|G|M|K] dev

If no -o options are specified, the filesystem will be created with Full

Zone Bit Maps (FZBM) and without quotas.