Synchronizing Quotas; Synchronizing Quotas - Red Hat GLOBAL FILE SYSTEM 5.1 Manual

Chapter 4. Managing GFS
A group name or ID to which the data is associated.
LimitSize
The hard limit set for the user or group. This value is zero if no limit has been set.
Value
The actual amount of disk space used by the user or group.
Comments
When displaying quota information, the
into names if the option is added to the command line.
-n
Space allocated to GFS's hidden files can be left out of displayed values for the root UID and
GID by adding the
-d
numbers from
gfs_quota
Examples
This example displays quota information for all users and groups that have a limit set or are
using any disk space on file system
gfs_quota list -f /gfs
This example displays quota information in sectors for group
gfs_quota get -g users -f /gfs -s

4.3. Synchronizing Quotas

GFS stores all quota information in its own internal file on disk. A GFS node does not update
this quota file for every file-system write; rather, it updates the quota file once every 60 seconds.
This is necessary to avoid contention among nodes writing to the quota file, which would cause
a slowdown in performance.
As a user or group approaches their quota limit, GFS dynamically reduces the time between its
quota-file updates to prevent the limit from being exceeded. The normal time period between
quota synchronizations is a tunable parameter,
command. By default, the time period is 60 seconds. Also, the
gfs_tool
parameter must be set on each node and each time the file system is mounted. (Changes to the
parameter are not persistent across unmounts.)
quota_quantum
You can use the
gfs_quota sync
to the on-disk quota file between the automatic updates performed by GFS.
Usage
24
gfs_quota
option to the command line. This is useful when trying to match the
with the results of a
.
/gfs
command to synchronize the quota information from a node
command does not resolve UIDs and GIDs
command.
du
on file system
users
, and can be changed using the
quota_quantum
.
/gfs
quota_quantum