Hp StorageWorks Scalable File Share Bedienungsanleitung PDF herunterladen (Seite 125)

Managing quotas 5–41

You must run the command on a client node that has been configured as described in Section 5.7.2.3, and

where the file system is mounted. Note also that the lfs setquota command will not succeed if the lfs

quotacheck command has not been run first to activate quota functionality on the file system, as described

in Section 5.7.2.5.

CAUTION: Do not run the lfs setquota command while there are applications performing

I/O operations on the file system; otherwise, the block hard limit may not be correctly enforced.

For example, to limit the user fred to approximately 10GB of storage and 2M inodes in the /data file

system, enter the following command:

# lfs setquota -u fred 0 10000000 0 2000000 /data

Note that you only need to run this command once, on one client node. When the lfs setquota

command has been run once against a file system, as described here, user and/or group quotas are set on

the file system for all client nodes.

If the lfs setquota command fails with the following error message, this indicates that quota functionality

has not yet been activated on the file system (that is, the lfs quotacheck command has not yet been run

as described in Section 5.7.2.5):

setquota failed: No such process

When the user or group limits have been set, you can use the lfs quotacheck command to verify the

limits, as described in Section 5.7.3.

5.7.3 Checking quota limits

Ordinary users can display their own file system usage and limits using the standard quota(1) command.

The root user can use the lfs quotacheck command to resynchronize the quota statistics with the actual

usage in the file system, as described here.

The first time the lfs quotacheck command is run against a file system, it activates quota functionality

on the file system, as described in Section 5.7.2.5. After that, the lfs quotacheck command can be run

(on any client node where the file system is mounted) to resynchronize the quota statistics with the actual

block and inode usage in the file system.

CAUTION: Do not run the lfs quotacheck command while there are applications performing

I/O operations on the file system; otherwise, the statistics in the quota files may be wrong.

The syntax of the lfs quotacheck command is as follows:

lfs quotacheck -[a] [v] [u] [g] mountpoint

Where:

-a Checks all the quota-enabled file systems.

-v Displays status information as the command executes.

-u Checks the user quota data.

-g Checks the group quota data.

-mountpoint Is the mount point of a file system.

For example, assuming that quotas have already been enabled on the data file system and you want to

synchronize the user and group quotas on the file system, enter the following command:

# lfs quotacheck -ug /data

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Hp StorageWorks Scalable File Share Bedienungsanleitung Seite 125