HP DL380-SL Guide de l'utilisateur télécharger pdf (Page 43)

Chapter 2: HP Clustered File System 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.

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, HP Clustered File System provides support for sparse

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

earlier version of HP Clustered File System, 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.

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

Set the default hard quota 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

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HP DL380-SL Guide de l'utilisateur Page 43