SIMPLE SOLUTIONS

GFARM2FS(1) - Linux man page online | User commands

Mount a Gfarm file system.

Chapter
2 April 2011
GFARM2FS(1) GFARM2FS(1)

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)
Gfarm 2 April 2011 GFARM2FS(1)
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gfarm2fs(1) referred by
refer to fusermount(1) | gfarm2.conf(5) | mount(8) | setfacl(1)
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