12-23-2010
You mean change the cache size to lower cache size
# Cache directory
# You can specify multiple cache_dir lines to spread the cache among different disk partitions.
# 20000 MB, 64 directories, 128 sub-directories for each directory
cache_dir aufs /squid 20000 64 128[/B]
# The ideal amount of memory to be used for In-Transit objects, Hot Objects and Negative-Cached objects
cache_mem 96 MB
# Objects greater than this size will not be attempted to kept in the memory cache.
# This should be set high enough to keep objects accessed frequently in memory to improve performance
maximum_object_size_in_memory 32 KB
# Objects larger than this size will NOT be saved on disk.
# The value is specified in kilobytes.
maximum_object_size 32768 KB
# The size, low-, and high-water marks for the IP cache.
ipcache_size 4096
# Maximum number of FQDN cache entries.
fqdncache_size 4096
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LEARN ABOUT PHP
fs_setcachesize
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)