HP StorageWorks Scalable File Share - Manual (Page 56)

After a few minutes, the MGS mount is active with df.
16. Boot the MDS node.
17. Start the Heartbeat service on the MDS node:
# service heartbeat start
After a few minutes, the MDS mount is active with df.
18. Start Heartbeat on the OSS nodes.
# pdsh -w oss[1-n] service heartbeat start
19. Run the following command on all nodes:
# chkconfig heartbeat on
5.7.1.3 On the Client
Use the following command on a client to check whether the client can communicate properly
with the MDS node:
# lfs check mds
testfs-MDT0000-mdc-ffff81012833ec00 active
Use the following command to check OSTs or servers for both MDS and OSTs. This will show
the Lustre view of the file system. You should see an MDT connection, and all expected OSTs
showing a total of the expected space. For example:
# lfs df -h /testfs
UUID bytes Used Available Use% Mounted on
hpcsfsc-MDT0000_UUID 1.1T 475.5M 1013.7G 0% /hpcsfsc[MDT:0]
hpcsfsc-OST0000_UUID 1.2T 68.4G 1.1T 5% /hpcsfsc[OST:0]
hpcsfsc-OST0001_UUID 1.2T 68.1G 1.1T 5% /hpcsfsc[OST:1]
hpcsfsc-OST0002_UUID 1.2T 67.9G 1.1T 5% /hpcsfsc[OST:2]
hpcsfsc-OST0003_UUID 1.2T 69.1G 1.1T 5% /hpcsfsc[OST:3]
hpcsfsc-OST0004_UUID 1.2T 71.2G 1.1T 5% /hpcsfsc[OST:4]
hpcsfsc-OST0005_UUID 1.2T 71.7G 1.1T 5% /hpcsfsc[OST:5]
hpcsfsc-OST0006_UUID 1.2T 68.1G 1.1T 5% /hpcsfsc[OST:6]
hpcsfsc-OST0007_UUID 1.2T 68.4G 1.1T 5% /hpcsfsc[OST:7]
hpcsfsc-OST0008_UUID 1.2T 68.6G 1.1T 5% /hpcsfsc[OST:8]
hpcsfsc-OST0009_UUID 1.2T 73.1G 1.1T 6% /hpcsfsc[OST:9]
hpcsfsc-OST000a_UUID 1.2T 72.9G 1.1T 6% /hpcsfsc[OST:10]
hpcsfsc-OST000b_UUID 1.2T 68.8G 1.1T 5% /hpcsfsc[OST:11]
hpcsfsc-OST000c_UUID 1.2T 68.6G 1.1T 5% /hpcsfsc[OST:12]
hpcsfsc-OST000d_UUID 1.2T 68.3G 1.1T 5% /hpcsfsc[OST:13]
hpcsfsc-OST000e_UUID 1.2T 82.5G 1.0T 6% /hpcsfsc[OST:14]
hpcsfsc-OST000f_UUID 1.2T 71.0G 1.1T 5% /hpcsfsc[OST:15]
filesystem summary: 18.9T 1.1T 16.8T 5% /hpcsfsc
The following commands show the file system component connections and the network interfaces
that serve them.
# ls /proc/fs/lustre/*/*/*conn_uuid
/proc/fs/lustre/mdc/testfs-MDT0000-mdc-ffff81012833ec00/mds_conn_uuid
/proc/fs/lustre/mgc/MGC172.31.97.1@o2ib/mgs_conn_uuid
/proc/fs/lustre/osc/testfs-OST0000-osc-ffff81012833ec00/ost_conn_uuid
# cat /proc/fs/lustre/*/*/*conn_uuid
172.31.97.1@o2ib
172.31.97.1@o2ib
172.31.97.2@o2ib
5.8 Lustre Performance Monitoring
You can monitor the performance of Lustre clients, Object Storage Servers, and the MetaData
Server with the open source tool collectl. Not only can collectl report a variety of the more
56 Using HP SFS Software