3.6.0 Matrix Server Command Reference (5697-7083, December 2007)

Chapter 2: Matrix Server Commands 32

-y

Causes psfscheck to answer “yes” to all questions.

Enable or disable FZBMs

The psfscheck utility also provides options to enable or disable Full Zone Bit

Maps (FZBMs). This on-disk filesystem format reduces the amount of data

that the filesystem needs to read when allocating a block. It is particularly

useful for speeding up allocation times on large, relatively full filesystems.

For details about FZBM, see the PolyServe Knowledge Base article “Using the

FZBM On-Disk Filesystem Format.”

The options are:

--enable-fzbm

Enable the FZBM feature on the specified filesystem.

--disable-fzbm

Disable the FZBM feature on the specified filesystem.

The upgrade-fs and --downgrade-fs options are obsolete.

Enable sparse files

As of the 3.4 release, Matrix Server provides support for sparse files. To

enable sparse files on a PSFS filesystem that was created under an earlier

version of Matrix Server, use the following option:

--enable-sparse

Enable sparse files on the specified filesystem.

Manage quotas

The psfscheck utility includes options to enable or disable quotas on a

filesystem and to set the default quotas:

--enable-quotas

Build the necessary quota infrastructure on the specified filesystem. The

psfsck utility then examines the existing files and stores current

allocations for each user and group owning a file on the filesystem.

--disable-quotas

Disable quotas on the specified filesystem and free the associated blocks.