cachefsd(1M)

NAME

     cachefsd - CacheFS daemon

SYNOPSIS

     /usr/lib/fs/cachefs/cachefsd

DESCRIPTION

     The  cachefsd  server  implements  features  of  the   cache
     filesystem  (CacheFS). It is invoked at boot time and run if
     the / (root) and /usr filesystems are being cached. If  /usr
     is  being  cached,  cachefsd  is  invoked  by inetd(1M) from
     inetd.conf(4). At run time, cachefsd is invoked by the inetd
     mechanism  in response to an RPC request from a user command
     such as mount_cachefs(1M).

     The cachefsd server  supports  the  "disconnected  mode"  of
     CacheFS.  In  this  mode,  a  user can continue to read and,
     depending on the option selected, write to files in a cached
     filesystem  when  the NFS server for the cached files is not
     available.

     The cachefsd daemon performs the following functions in sup-
     port of the CacheFS:

        o  Implements the connection policy.  The  daemon  deter-
           mines whether the NFS server backing the cache is con-
           nected or disconnected from the cache, or is in  tran-
           sition from the connected or disconnected states.

        o  Implements "log rolling," wherein the daemon  monitors
           a disconnected NFS server for reconnection. After such
           a server returns to a connected state, cachefsd  rolls
           any local changes to cached files (kept in a log) back
           to the server.

        o  Manages  "packing,"  wherein  cachefsd  makes  a  best
           effort  to  ensure that files in a user-specified list
           are available in the cache in disconnected mode.

        o  Supports  user  interfaces  by  supplying  statistics,
           reporting  conflicts  between  the  cache and the back
           filesystem, and supporting a list of files  for  pack-
           ing.

     The running of cachefsd is  required  for  the  disconnected
     mode of CacheFS.

OPTIONS

     The following options are supported:

     -r    Used for invoking cachefsd for the / filesystem.

ATTRIBUTES

     See attributes(5) for descriptions of the  following  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | SUNWcsu                     |
    |_____________________________|_____________________________|

SEE ALSO

     cachefspack(1M),      cfsadmin(1M),       mount_cachefs(1M),
     inetd.conf(4), attributes(5)

     System Administration Guide: Basic Administration