3.5.1 Matrix Server Command Reference

Chapter 1: Matrix Server Commands 39

recommended that you run psfsck again in check mode, without the

--no-modify option, before running with the --rebuild-tree option.

The -no-modify option cannot be specified in addition to --rebuild-tree or

--rebuild-sb.

-a

Cause psfsck to assume that it was called by psfsck -A and to return, even

if the filesystem does not seem to be unmounted cleanly.

-y

Cause psfsck to answer “yes” to all questions.

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

Maps (FZBMs), to enable or disable quotas, and to specify the default quota

for users and groups. These options are:

--enable-fzbm

Enable the FZBM feature on the specified filesystem. 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.”

--disable-fzbm

Disable the FZBM feature on the specified filesystem.

--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.

--set-udq <size>[T|G|M|K]

Set the default quota for users on the specified filesystem. The optional

modifiers specify that the size is in terabytes (T), gigabytes (G), megabytes

(M), or kilobytes (K). If a modifier is not specified, the size will be

calculated in bytes. (The default is rounded down to the nearest filesystem

block.)