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node3,options lnet networks=o2ib0,/dev/mapper/mpath6,/mnt/ost4,ost,testfs,icnode1@o2ib0:icnode2@o2ib0
,,,,"_netdev,noauto",icnode4@o2ib0
node4,options lnet networks=o2ib0,/dev/mapper/mpath7,/mnt/ost5,ost,testfs,icnode1@o2ib0:icnode2@o2ib0
,,,,"_netdev,noauto",icnode3@o2ib0
node4,options lnet networks=o2ib0,/dev/mapper/mpath8,/mnt/ost6,ost,testfs,icnode1@o2ib0:icnode2@o2ib0
,,,,"_netdev,noauto",icnode3@o2ib0
node4,options lnet networks=o2ib0,/dev/mapper/mpath9,/mnt/ost7,ost,testfs,icnode1@o2ib0:icnode2@o2ib0
,,,,"_netdev,noauto",icnode3@o2ib0
node4,options lnet networks=o2ib0,/dev/mapper/mpath10,/mnt/ost8,ost,testfs,icnode1@o2ib0:icnode2@o2ib0
,,,,"_netdev,noauto",icnode3@o2ib0
5.1.1.1 Multiple File Systems
The lustre_config CSV file for a two file system configuration is shown below. In this file,
the mdt role for the "scratch" file system is running on node1, while the mdt for "testfs" is running
on node2. HP recommends configuring multiple mdt's across the mgs/mdt failover pair for better
performance.
IMPORTANT: Only one MGS is defined regardless of the number of file systems.
node1,options lnet networks=tcp(eth2),/dev/mapper/mpath0,/mnt/mgs,mgs,,,,,,"_netdev,noauto",icnode2@tcp
node2,options lnet
networks=tcp(eth2),/dev/mapper/mpath1,/mnt/testfsmds,mdt,testfs,icnode1@tcp:icnode2@tcp,,"--param=mdt.group_upcall=NONE",,"_netdev,noauto",icnode1@tcp
node1,options lnet
networks=tcp(eth2),/dev/mapper/mpath2,/mnt/scratchmds,mdt,scratch,icnode1@tcp:icnode2@tcp,,"--param=mdt.group_upcall=NONE",,"_netdev,noauto",icnode2@tcp
node3,options lnet
networks=tcp(eth2),/dev/mapper/mpath16,/mnt/ost0,ost,scratch,icnode1@tcp:icnode2@tcp,0,,,"_netdev,noauto",icnode4@tcp
node3,options lnet
networks=tcp(eth2),/dev/mapper/mpath17,/mnt/ost1,ost,testfs,icnode1@tcp:icnode2@tcp,1,,,"_netdev,noauto",icnode4@tcp
node3,options lnet
networks=tcp(eth2),/dev/mapper/mpath18,/mnt/ost2,ost,testfs,icnode1@tcp:icnode2@tcp,2,,,"_netdev,noauto",icnode4@tcp
node3,options lnet
networks=tcp(eth2),/dev/mapper/mpath19,/mnt/ost3,ost,testfs,icnode1@tcp:icnode2@tcp,3,,,"_netdev,noauto",icnode4@tcp
node4,options lnet
networks=tcp(eth2),/dev/mapper/mpath20,/mnt/ost4,ost,scratch,icnode1@tcp:icnode2@tcp,4,,,"_netdev,noauto",icnode3@tcp
node4,options lnet
networks=tcp(eth2),/dev/mapper/mpath21,/mnt/ost5,ost,testfs,icnode1@tcp:icnode2@tcp,5,,,"_netdev,noauto",icnode3@tcp
node4,options lnet
networks=tcp(eth2),/dev/mapper/mpath22,/mnt/ost6,ost,testfs,icnode1@tcp:icnode2@tcp,6,,,"_netdev,noauto",icnode3@tcp
node4,options lnet
networks=tcp(eth2),/dev/mapper/mpath23,/mnt/ost7,ost,testfs,icnode1@tcp:icnode2@tcp,7,,,"_netdev,noauto",icnode3@tcp
node5,options lnet
networks=tcp(eth2),/dev/mapper/mpath16,/mnt/ost8,ost,scratch,icnode1@tcp:icnode2@tcp,8,,,"_netdev,noauto",icnode6@tcp
node5,options lnet
networks=tcp(eth2),/dev/mapper/mpath17,/mnt/ost9,ost,testfs,icnode1@tcp:icnode2@tcp,9,,,"_netdev,noauto",icnode6@tcp
node5,options lnet
networks=tcp(eth2),/dev/mapper/mpath18,/mnt/ost10,ost,testfs,icnode1@tcp:icnode2@tcp,10,,,"_netdev,noauto",icnode6@tcp
node5,options lnet
networks=tcp(eth2),/dev/mapper/mpath19,/mnt/ost11,ost,testfs,icnode1@tcp:icnode2@tcp,11,,,"_netdev,noauto",icnode6@tcp
node6,options lnet
networks=tcp(eth2),/dev/mapper/mpath20,/mnt/ost12,ost,scratch,icnode1@tcp:icnode2@tcp,12,,,"_netdev,noauto",icnode5@tcp
node6,options lnet
networks=tcp(eth2),/dev/mapper/mpath21,/mnt/ost13,ost,testfs,icnode1@tcp:icnode2@tcp,13,,,"_netdev,noauto",icnode5@tcp
node6,options lnet
networks=tcp(eth2),/dev/mapper/mpath22,/mnt/ost14,ost,testfs,icnode1@tcp:icnode2@tcp,14,,,"_netdev,noauto",icnode5@tcp
node6,options lnet
networks=tcp(eth2),/dev/mapper/mpath23,/mnt/ost15,ost,testfs,icnode1@tcp:icnode2@tcp,15,,,"_netdev,noauto",icnode5@tcp
5.1.2 Creating and Testing the Lustre File System
After you have completed creating your file system configuration CSV file, create the file system
using the following procedure:
1. Run the following command on the MGS node n1:
# lustre_config -v -a -f testfs.csv
Examine the script output for errors. If completed successfully, you will see a line added to
the /etc/fstab file with the mount-point information for each node, and the mount-points
created as specified in the CSV file. The creates the file system MGS, MDT, and OST
components on the file system server nodes. There are /etc/fstab entries for these, but
the noauto mount option is used so the file system components do not start up automatically
on reboot.
The Heartbeat service mounts the file system components, as explained in “Configuring
Heartbeat” (page 48). The lustre_config script also modifies /etc/modprobe.conf
5.1 Creating a Lustre File System 47
- HP Part Number: SFSUGG32-E 1
- Published: May 2010 1
- Edition: 5 1
- Table of Contents 3
- 4 Table of Contents 4
- Table of Contents 5 5
- List of Figures 7
- List of Tables 9
- About This Document 11
- Related Information 12
- Structure of This Document 13
- Documentation Updates 13
- HP Encourages Your Comments 13
- 1 What's In This Version 15
- 1.3.1 Hardware Configuration 16
- Figure 1-1 Platform Overview 17
- 1.4 Server Security Policy 19
- 1.5 Release Notes 20
- 2.1 Installation 21
- 2.2 Accessing the MSA CLI 21
- 2.3.2 Creating New Volumes 22
- 2.4 MSA2000 Monitoring 24
- 2.4.1 email Notifications 25
- 2.4.2 SNMP Monitoring 26
- 3.1 Supported Firmware 28
- 3.2 Installation Requirements 29
- 3.3 Installation Phase 1 30
- 3.3 Installation Phase 1 31 31
- 3.4 Installation Phase 2 33
- 3.5.3 Configuring pdsh 35
- 3.5.4 Configuring ntp 35
- 3.6 Upgrade Installation 37
- # start lustre config 38
- # end lustre config 38
- 3.6.2 Client Upgrades 39
- 4.1 Installation Requirements 41
- 4.2 Installation Instructions 42
- 5 Using HP SFS Software 45
- 46 Using HP SFS Software 46
- 5.1.1.1 Multiple File Systems 47
- 5.2 Configuring Heartbeat 48
- 5.2.3 Configuration Files 49
- 50 Using HP SFS Software 50
- 5.2.4 Copying Files 51
- 5.2.5 Things to Double-Check 52
- 5.2.6 Things to Note 52
- 5.3 Starting the File System 53
- 5.4 Stopping the File System 53
- 5.5 Monitoring Failover Pairs 54
- 5.7.1.1 On the Server 55
- 56 Using HP SFS Software 56
- 5.7.1.3 On the Client 58
- 6 Licensing 61
- 62 Licensing 62
- 7.1 Server Reboot 63
- 7.2 Errors from install2 63
- 7.3 Application File Locking 63
- 7.4 MDS Is Unresponsive 63
- 7.8 SELinux Support 64
- Correct configuration output 65
- A HP SFS G3 Performance 67
- A.2 Single Client Performance 68
- A.3 Throughput Scaling 70
- A.3 Throughput Scaling 71 71
- A.4 One Shared File 72
- A.6 Random Reads 73
- A.7.1 Benchmark Platform 74
- A.8 10 GigE Performance 76
- A.8.1 Benchmark Platform 77
- 78 HP SFS G3 Performance 78
- A.8.3 Throughput Scaling 79
- 82 Index 82
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