NFS Services Administrator's Guide (B.11.31.04) March 2009

Configuring and Administering CacheFS

You can use CacheFS to cache both manually mounted NFS filesystems or automatically

mounted NFS filesystems. All CacheFS operations, except displaying CacheFS statistics,

require superuser permissions.

This section describes the tasks to configure and administer CacheFS:

• “Creating a CacheFS Cache” (page 112)

• “Mounting an NFS Filesystem Using CacheFS” (page 112)

• “Automounting a Filesystem Using CacheFS” (page 114)

• “Enabling Logging in CacheFS” (page 115)

• “Disabling Logging in CacheFS” (page 115)

• “Caching a Complete Binary” (page 116)

• “Packing a Cached Filesystem” (page 116)

• “Forcing a Cache Consistency Check” (page 118)

• “Unmounting a Cache Filesystem” (page 119)

• “Checking the Integrity of a Cache” (page 119)

• “Deleting a Cache Directory” (page 120)

Creating a CacheFS Cache

This section describes how to configure a cache directory in a local filesystem. To

configure a local filesystem as a cache directory, follow these steps:

1. Log in to the NFS client system as superuser.

2. Ensure that the disk partition containing the cache has enough space for the cache

directory. If does not have enough space, configure and mount a new HFS or VxFS

filesystem to be used as the front filesystem, where data will be cached.

3. To create a cache directory, enter the following command:

cfsadmin -c cache_directory

For example to create a CacheFS directory called /disk2/cache using the

following command:

cfsadmin -c /disk2/cache

This creates a new directory called cache under the /disk2 directory.

CacheFS allows more than one filesystem to be cached in the same cache. You need

not create a separate cache directory for each CacheFS mount.

Mounting an NFS Filesystem Using CacheFS

This section describes how to mount an NFS filesystem using CacheFS. The syntax for

mounting an NFS filesystem using CacheFS is as follows:

mount [-F cachefs] [-rqOV] -o backfstype=file_system_type

[specific_options] resource mount_point

112 Configuring and Administering a Cache Filesystem