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cacheinfo(5) [v7 man page]

CACHEINFO(5)							AFS File Reference						      CACHEINFO(5)

NAME
cacheinfo - Defines configuration parameters for the Cache Manager DESCRIPTION
The cacheinfo file defines configuration parameters for the Cache Manager, which reads the file as it initializes. The file contains a single line of ASCII text and must reside in the /etc/openafs directory. Use a text editor to create it during initial configuration of the client machine; the required format is as follows: <mount>:<cache>:<size> where <mount> Names the local disk directory at which the Cache Manager mounts the AFS namespace. It must exist before the afsd program runs. The conventional value is /afs. Using any other value prevents traversal of pathnames that begin with /afs (such as pathnames to files in foreign cells that do use the conventional name). The -mountdir argument to the afsd command overrides this value. <cache> Names the local disk directory to use as a cache. It must exist before the afsd program runs. The standard value is /usr/vice/cache, but it is acceptable to substitute a directory on a partition with more available space. Although the Cache Manager ignores this field when configuring a memory cache, a value must always appear in it. The -cachedir argument to the afsd command overrides this value. <size> Specifies the cache size as a number of 1-kilobyte blocks. Larger caches generally yield better performance, but a disk cache must not exceed 90% of the space available on the cache partition (85% for AIX systems), and a memory cache must use no more than 25% of available machine memory. The -blocks argument to the afsd command overrides this value. To reset cache size without rebooting on a machine that uses disk caching, use the fs setcachesize command. To display the current size of a disk or memory cache between reboots, use the fs getcacheparms command. EXAMPLES
The following example cacheinfo file mounts the AFS namespace at /afs, establishes a disk cache in the /usr/vice/cache directory, and defines cache size as 50,000 1-kilobyte blocks. /afs:/usr/vice/cache:50000 SEE ALSO
afsd(8), fs_getcacheparms(1), fs_setcachesize(1) COPYRIGHT
IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved. This documentation is covered by the IBM Public License Version 1.0. It was converted from HTML to POD by software written by Chas Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell. OpenAFS 2012-03-26 CACHEINFO(5)

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FS_SETCACHESIZE(1)					       AFS Command Reference						FS_SETCACHESIZE(1)

NAME
fs_setcachesize - Sets the size of the disk cache SYNOPSIS
fs setcachesize [-blocks <size (0 = reset)>>] [-reset] [-help] fs setca [-b <size (0 = reset)>>] [-r] [-h] fs cachesize [-b <size (0 = reset)>>] [-r] [-h] fs ca [-b <size (0 = reset)>>] [-r] [-h] DESCRIPTION
The fs setcachesize command changes the number of kilobyte blocks of local disk space available to the Cache Manager for its data cache, on machines that use a disk cache. The command is not operative on machines that use a memory cache. To return the cache size to the default value specified in the third field of the local /etc/openafs/cacheinfo file, provide a value of 0 to the -blocks argument. To return the cache size to the value set when the machine was last rebooted, use the -reset flag instead of the -blocks argument. This is normally the amount specified in the cacheinfo file, unless the -blocks argument was included on the afsd command to override the cacheinfo value. To display the current cache size and amount of cache in use, for both disk and memory caches, use the fs getcacheparms command. CAUTIONS
This command is not operative on machines using a memory cache, and results in an error message. To change memory cache size, edit the cacheinfo file and reboot, or reboot and provide the -blocks argument to the afsd command. On machines using a disk cache, do not set the cache size to exceed 85% to 90% of the actual disk space available for the cache directory. The cache implementation itself requires a small amount of space on the partition. OPTIONS
-blocks <size> Specifies the amount of disk space available for the Cache Manager to devote to the cache. The size should be a positive integer followed by an optional suffix: "K" for kibibytes (1024 bytes, the default), "M" for mebibytes (1024 kibibytes), "G" for gibibytes (1024 mebibytes), and "T" for tebibytes (1024 gibibytes). Provide a value of 0 to set cache size to the default specified in the cacheinfo file. -reset Returns the cache size to the value set when the machine was last booted. This agrees with the value in the cacheinfo file unless the -blocks argument was used on the afsd command. -help Prints the online help for this command. All other valid options are ignored. EXAMPLES
The following command sets the disk cache size to 25000 kilobyte blocks. % fs setcachesize -blocks 25000 Both of the following commands reset the disk cache size to the value in the cacheinfo file, assuming that the -blocks argument to the afsd command was not used. % fs setcachesize -blocks 0 % fs setcachesize -reset PRIVILEGE REQUIRED
The issuer must be logged in as the local superuser root. SEE ALSO
cacheinfo(5), afsd(8), fs_getcacheparms(1) COPYRIGHT
IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved. This documentation is covered by the IBM Public License Version 1.0. It was converted from HTML to POD by software written by Chas Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell. OpenAFS 2012-03-26 FS_SETCACHESIZE(1)
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