HP StorageWorks Scalable File Share - Manual (Page 51)

Use the following command to show the Lustre network connections that the node is aware of,
some of which might not be currently active.
# cat /proc/sys/lnet/peers
nid refs state max rtr min tx min queue
0@lo 1 ~rtr 0 0 0 0 0 0
172.31.97.2@o2ib 1 ~rtr 8 8 8 8 7 0
172.31.64.1@o2ib 1 ~rtr 8 8 8 8 6 0
172.31.64.2@o2ib 1 ~rtr 8 8 8 8 5 0
172.31.64.3@o2ib 1 ~rtr 8 8 8 8 5 0
172.31.64.4@o2ib 1 ~rtr 8 8 8 8 6 0
172.31.64.6@o2ib 1 ~rtr 8 8 8 8 6 0
172.31.64.8@o2ib 1 ~rtr 8 8 8 8 6 0
Use the following command on an MDS server or client to show the status of all file system
components, as follows. On an MGS or OSS server, it only shows the components running on
that server.
# lctl dl
0 UP mgc MGC172.31.103.1@o2ib 81b13870-f162-80a7-8683-8782d4825066 5
1 UP mdt MDS MDS_uuid 3
2 UP lov hpcsfsc-mdtlov hpcsfsc-mdtlov_UUID 4
3 UP mds hpcsfsc-MDT0000 hpcsfsc-MDT0000_UUID 195
4 UP osc hpcsfsc-OST000f-osc hpcsfsc-mdtlov_UUID 5
5 UP osc hpcsfsc-OST000c-osc hpcsfsc-mdtlov_UUID 5
6 UP osc hpcsfsc-OST000d-osc hpcsfsc-mdtlov_UUID 5
7 UP osc hpcsfsc-OST000e-osc hpcsfsc-mdtlov_UUID 5
8 UP osc hpcsfsc-OST0008-osc hpcsfsc-mdtlov_UUID 5
9 UP osc hpcsfsc-OST0009-osc hpcsfsc-mdtlov_UUID 5
10 UP osc hpcsfsc-OST000b-osc hpcsfsc-mdtlov_UUID 5
11 UP osc hpcsfsc-OST000a-osc hpcsfsc-mdtlov_UUID 5
12 UP osc hpcsfsc-OST0005-osc hpcsfsc-mdtlov_UUID 5
13 UP osc hpcsfsc-OST0004-osc hpcsfsc-mdtlov_UUID 5
14 UP osc hpcsfsc-OST0006-osc hpcsfsc-mdtlov_UUID 5
15 UP osc hpcsfsc-OST0007-osc hpcsfsc-mdtlov_UUID 5
16 UP osc hpcsfsc-OST0001-osc hpcsfsc-mdtlov_UUID 5
17 UP osc hpcsfsc-OST0002-osc hpcsfsc-mdtlov_UUID 5
18 UP osc hpcsfsc-OST0000-osc hpcsfsc-mdtlov_UUID 5
19 UP osc hpcsfsc-OST0003-osc hpcsfsc-mdtlov_UUID 5
Check the recovery status on an MDS or OSS server as follows:
# cat /proc/fs/lustre/*/*/recovery_status
INACTIVE
This displays INACTIVE if no recovery is in progress. If any recovery is in progress or complete,
the following information appears:
status: RECOVERING
recovery_start: 1226084743
time_remaining: 74
connected_clients: 1/2
completed_clients: 1/2
replayed_requests: 0/??
queued_requests: 0 next_transno: 442
status: COMPLETE
recovery_start: 1226084768
recovery_duration: 300
completed_clients: 1/2
replayed_requests: 0
last_transno: 0
Use the combination of the debugfs and llog_reader commands to examine file system
configuration data as follows:
5.5 Testing Your Configuration 51