NFS Services Administrator's Guide

Configuring and Administering NFS
Configuring and Administering an NFS Client
Chapter 254
acdirmin=n
(default=30)
The minimum number of seconds a directory’s attributes
are cached on the NFS client. If the directory is modified
before this timeout expires, the timeout period is
extended by acdirmin seconds.
For a directory that rarely changes or that is owned and
modified by only one user, like a user’s home directory,
you can decrease the load on your network by setting
acdirmin=60 or higher.
acregmax=n
(default=60)
The maximum number of seconds a file’s attributes are
cached on the NFS client. When this timeout period
expires, the client flushes its attribute cache, and if the
attributes have changed, the client sends them to the
NFS server.
For a file that rarely changes or that is owned and
modified by only one user, like a file in a user’s home
directory, you can decrease the load on your network by
setting acregmax=120 or higher.
acregmin=n
(default=3)
The minimum number of seconds a file’s attributes are
cached on the NFS client. If the file is modified before
this timeout expires, the timeout period is extended by
acregmin seconds.
For a file that rarely changes or that is owned and
modified by only one user, like a file in a user’s home
directory, you can decrease the load on your network by
setting acdirmin=30 or higher.
Table 2-3 NFS Caching Options (Continued)