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-rw-r--r--Documentation/filesystems/pohmelfs/info.txt21
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diff --git a/Documentation/filesystems/pohmelfs/info.txt b/Documentation/filesystems/pohmelfs/info.txt
index 4e3d50157083..db2e41393626 100644
--- a/Documentation/filesystems/pohmelfs/info.txt
+++ b/Documentation/filesystems/pohmelfs/info.txt
@@ -1,6 +1,8 @@
1POHMELFS usage information. 1POHMELFS usage information.
2 2
3Mount options: 3Mount options.
4All but index, number of crypto threads and maximum IO size can changed via remount.
5
4idx=%u 6idx=%u
5 Each mountpoint is associated with a special index via this option. 7 Each mountpoint is associated with a special index via this option.
6 Administrator can add or remove servers from the given index, so all mounts, 8 Administrator can add or remove servers from the given index, so all mounts,
@@ -52,16 +54,27 @@ mcache_timeout=%u
52 54
53Usage examples. 55Usage examples.
54 56
55Add (or remove if it already exists) server server1.net:1025 into the working set with index $idx 57Add server server1.net:1025 into the working set with index $idx
56with appropriate hash algorithm and key file and cipher algorithm, mode and key file: 58with appropriate hash algorithm and key file and cipher algorithm, mode and key file:
57$cfg -a server1.net -p 1025 -i $idx -K $hash_key -k $cipher_key 59$cfg A add -a server1.net -p 1025 -i $idx -K $hash_key -k $cipher_key
58 60
59Mount filesystem with given index $idx to /mnt mountpoint. 61Mount filesystem with given index $idx to /mnt mountpoint.
60Client will connect to all servers specified in the working set via previous command: 62Client will connect to all servers specified in the working set via previous command:
61mount -t pohmel -o idx=$idx q /mnt 63mount -t pohmel -o idx=$idx q /mnt
62 64
63One can add or remove servers from working set after mounting too. 65Change permissions to read-only (-I 1 option, '-I 2' - write-only, 3 - rw):
66$cfg A modify -a server1.net -p 1025 -i $idx -I 1
67
68Change IO priority to 123 (node with the highest priority gets read requests).
69$cfg A modify -a server1.net -p 1025 -i $idx -P 123
64 70
71One can check currect status of all connections in the mountstats file:
72# cat /proc/$PID/mountstats
73...
74device none mounted on /mnt with fstype pohmel
75idx addr(:port) socket_type protocol active priority permissions
760 server1.net:1026 1 6 1 250 1
770 server2.net:1025 1 6 1 123 3
65 78
66Server installation. 79Server installation.
67 80