xenial (1) gfarm2fs.1.gz

Provided by: gfarm2fs_1.2.9.8-1_amd64 bug

NAME
       gfarm2fs - mount a Gfarm file system


SYNOPSIS
       gfarm2fs mount_point [ options ]


DESCRIPTION
       gfarm2fs mounts the Gfarm file system at the specified mount point.


GENERAL OPTIONS
       -h     display a list of command options.

       -V     display version.

       -o opt,[opt...]
              specify mount options.


GFARM2FS OPTIONS
       -o syslog=facility
              specify syslog facility.  default is local0.

       -o loglevel=priority
              specify syslog priority level.  default is notice.

       -E T   specify the timeout of attribute cache.  default is 1.0 seconds.

       -o gfs_stat_timeout=T
              same as -E option

       -o ncopy=N
              specify  the  number  of copies automatically created when a file is created.  default is 0, which
              means disabling automatic replication mechanism.

       -o copy_limit=N
              specify the maximum  number  of  concurrent  copy  creations.   this  is  effective  if  automatic
              replication is enabled.  default is 0.

       -o disable_genuine_nlink
              uses faked st_nlink (32000) of struct stat for directories.

       -o auto_uid_min=N
              specify the minimum UID automatically assigned.

       -o auto_uid_max=N
              specify the maximum UID automatically assigned.

       -o auto_gid_min=N
              specify the minimum GID automatically assigned.

       -o auto_gid_max=N
              specify the maximum GID automatically assigned.


FUSE OPTIONS
       see gfarm2fs -h


ENVIRONMENT VARIABLE
       GFARM_CONFIG_FILE
              specifies the Gfarm configuration file.


NOTES
       When  there  is not the same local account name as the Gfarm global user name, a temporal UID is assigned
       between auto_uid_min and auto_uid_max.  When there is not the same local group name as the  Gfarm  global
       group name, a temporal GID is assigned between auto_gid_min and auto_gid_max.

       When a temporal UID/GID cannot be assigned, setfacl(1) fails with EPERM.


SECURITY NOTES
       When untrusted users are registered in the gfarmroot group or gfarm_root.{user,group} extended attributes
       of any files  or  directories,  a  Security  Hole  exists  on  the  mount  point  of  gfarm2fs  with  "-o
       suid,allow_other"  option  executed  by  root  (even if either "-o ro" option or "-o default_permissions"
       option is also specified).  Therefore  both  "-o  suid,allow_other"  option  and  gfarm_root.{user,group}
       extended attributes should not be used.


SEE ALSO
       fusermount(1), gfarm_attr(5), gfarm2.conf(5), mount(8)