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flexcache - commands for administering FlexCache volumes
flexcache help [subcommand]
flexcache fstat path
flexcache eject path [-f]
flexcache stats [ -C [volname]] [ -S [volname] [-c
[clientname]]] [-z]
The flexcache command is used to administer FlexCache volumes.
FlexCache volumes are housed on the caching filer,
and are cached copies of separate volumes, which are on a
different filer (henceforth referred to as the origin
filer). Clients access the FlexCache volume as they would
access any other volume exported over NFS. FlexCache must
be licensed on the caching filer, and is not required for
the origin filer. The current version of FlexCache only
supports client access via NFSv2 and NFSv3.
For more information on volumes, see na_vol(1).
flexcache help [subcommand]
Displays help on the specified flexcache subcommand.
flexcache fstat path
Display statistics about the object cached at path.
path must be given as a canonical pathname. That
is, to display information on the file bar, residing
on cache volume foo, one would use the path
/vol/foo/bar. fstat avoids fetching attribute
information for files that aren't already present
in the cache. Note however that all directories
given in path will be fetched in order to perform
the required lookups. In addition to the traditional
UNIX stat information, specific information
used by the caching algorithms is displayed. In
particular, the number of 1K blocks the file is
consuming on the caching volume, and the last time
the file was updated on the cache. fstat can be
used on any path on the appliance.
flexcache eject path [-f]
Eject the given file from the cache. The path must
be specified in the same manner as in the flexcache
fstat command. The -f option ejects the file without
prompting the user for confirmation.
flexcache stats [ -C [volname]] [ -S [volname] [-c
[clientname]]] [-z]
The -C option on the caching filer displays client
side bandwidth savings and hit/miss statistics for
volname, or for all mapped FlexCache volumes if
volname is unspecified. The -S option on the origin
filer displays server side statistics for volname
if one is supplied or for all origin volumes otherwise.
If -c is also supplied, statistics for each
caching client are also displayed. If clientname
is specified then information for that client only
is displayed. The -c option is only valid with the
-S option and the global option flexcache.per_client_stats
must be set to on. The -z
option zeroes all the statistics for all FlexCache
volumes.
na_vol(1)
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