# mount -t glusterfs -o noatime,direct-io-mode=disable,log-file=/var/log/gluster-client.log gluster.work.com:/worknas /media/
Mount failed. Please check the log file for more details.

# cat =/var/log/gluster-client.log
[2014-12-19 02:23:52.604989] I [glusterfsd.c:1910:main] 0-/usr/sbin/glusterfs: Started running /usr/sbin/glusterfs version 3.4.5 (/usr/sbin/glusterfs --log-file=/var/log/gluster-client.log --direct-io-mode=disable --fuse-mountopts=noatime --volfile-id=/worknas --volfile-server=gluster.work.com --fuse-mountopts=noatime /media/)
[2014-12-19 02:23:52.613109] I [mount.c:290:gf_fuse_mount] 0-glusterfs-fuse: direct mount failed (Invalid argument), retry to mount via fusermount
[2014-12-19 02:23:52.620220] E [mount.c:162:fuse_mount_fusermount] 0-glusterfs-fuse: failed to exec fusermount: No such file or directory
[2014-12-19 02:23:52.621844] E [mount.c:298:gf_fuse_mount] 0-glusterfs-fuse: mount of gluster.work.com:/worknas to /media/ (default_permissions,noatime,allow_other,max_read=131072) failed
[2014-12-19 02:23:52.621883] I [socket.c:3480:socket_init] 0-glusterfs: SSL support is NOT enabled
[2014-12-19 02:23:52.622013] I [socket.c:3495:socket_init] 0-glusterfs: using system polling thread
[2014-12-19 02:23:52.623829] E [glusterfsd.c:1744:daemonize] 0-daemonize: mount failed
[2014-12-19 02:23:52.664776] E [common-utils.c:211:gf_resolve_ip6] 0-resolver: getaddrinfo failed (Name or service not known)
[2014-12-19 02:23:52.664859] E [name.c:249:af_inet_client_get_remote_sockaddr] 0-worknas-client-2: DNS resolution failed on host gluster03.work.com
[2014-12-19 02:23:52.666913] E [common-utils.c:211:gf_resolve_ip6] 0-resolver: getaddrinfo failed (Name or service not known)
[2014-12-19 02:23:52.666964] E [name.c:249:af_inet_client_get_remote_sockaddr] 0-worknas-client-3: DNS resolution failed on host gluster04.work.com
[2014-12-19 02:23:52.666998] E [afr-common.c:3735:afr_notify] 0-worknas-replicate-1: All subvolumes are down. Going offline until atleast one of them comes back up.
Given volfile:
+------------------------------------------------------------------------------+
  1: volume worknas-client-0
  2:     type protocol/client
  3:     option ping-timeout 30
  4:     option frame-timeout 90
  5:     option transport-type tcp
  6:     option remote-subvolume /srv/gluster/xvdb1/brick
  7:     option remote-host gluster01.work.com
  8: end-volume
  9:
 10: volume worknas-client-1
 11:     type protocol/client
 12:     option ping-timeout 30
 13:     option frame-timeout 90
 14:     option transport-type tcp
 15:     option remote-subvolume /srv/gluster/xvdb1/brick
 16:     option remote-host gluster02.work.com
 17: end-volume
 18:
 19: volume worknas-client-2
 20:     type protocol/client
 21:     option ping-timeout 30
 22:     option frame-timeout 90
 23:     option transport-type tcp
 24:     option remote-subvolume /srv/gluster/xvdb1/brick
 25:     option remote-host gluster03.work.com
 26: end-volume
 27:
 28: volume worknas-client-3
 29:     type protocol/client
 30:     option ping-timeout 30
 31:     option frame-timeout 90
 32:     option transport-type tcp
 33:     option remote-subvolume /srv/gluster/xvdb1/brick
 34:     option remote-host gluster04.work.com
 35: end-volume
 36:
 37: volume worknas-replicate-0
 38:     type cluster/replicate
 39:     option self-heal-readdir-size 2KB
 40:     option eager-lock on
 41:     option data-self-heal-algorithm diff
 42:     option data-self-heal-window-size 2
 43:     option data-self-heal on
 44:     option metadata-self-heal on
 45:     option background-self-heal-count 20
 46:     subvolumes worknas-client-0 worknas-client-1
 47: end-volume
 48:
 49: volume worknas-replicate-1
 50:     type cluster/replicate
 51:     option self-heal-readdir-size 2KB
 52:     option eager-lock on
 53:     option data-self-heal-algorithm diff
 54:     option data-self-heal-window-size 2
 55:     option data-self-heal on
 56:     option metadata-self-heal on
 57:     option background-self-heal-count 20
 58:     subvolumes worknas-client-2 worknas-client-3
 59: end-volume
 60:
 61: volume worknas-stripe-0
 62:     type cluster/stripe
 63:     subvolumes worknas-replicate-0 worknas-replicate-1
 64: end-volume
 65:
 66: volume worknas-dht
 67:     type cluster/distribute
 68:     option readdir-optimize on
 69:     option rebalance-stats on
 70:     option min-free-disk 5%
 71:     subvolumes worknas-stripe-0
 72: end-volume
 73:
 74: volume worknas-write-behind
 75:     type performance/write-behind
 76:     option cache-size 4MB
 77:     option flush-behind on
 78:     subvolumes worknas-dht
 79: end-volume
 80:
 81: volume worknas-read-ahead
 82:     type performance/read-ahead
 83:     subvolumes worknas-write-behind
 84: end-volume
 85:
 86: volume worknas-io-cache
 87:     type performance/io-cache
 88:     option cache-timeout 60
 89:     option max-file-size 2MB
 90:     subvolumes worknas-read-ahead
 91: end-volume
 92:
 93: volume worknas-quick-read
 94:     type performance/quick-read
 95:     subvolumes worknas-io-cache
 96: end-volume
 97:
 98: volume worknas-open-behind
 99:     type performance/open-behind
100:     subvolumes worknas-quick-read
101: end-volume
102:
103: volume worknas-md-cache
104:     type performance/md-cache
105:     subvolumes worknas-open-behind
106: end-volume
107:
108: volume worknas
109:     type debug/io-stats
110:     option count-fop-hits off
111:     option latency-measurement off
112:     option log-level WARNING
113:     subvolumes worknas-md-cache
114: end-volume

+------------------------------------------------------------------------------+
[2014-12-19 02:23:52.668649] W [socket.c:514:__socket_rwv] 0-worknas-client-1: readv failed (No data available)
[2014-12-19 02:23:52.670786] W [socket.c:514:__socket_rwv] 0-worknas-client-0: readv failed (No data available)
[2014-12-19 02:23:52.697580] W [glusterfsd.c:1002:cleanup_and_exit] (-->/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7f384200fefd] (-->/lib/x86_64-linux-gnu/libpthread.so.0(+0x8182) [0x7f38422e3182] (-->/usr/sbin/glusterfs(glusterfs_sigwaiter+0xd5) [0x7f3842dccef5]))) 0-: received signum (15), shutting down