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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:
# debugfs -c -R 'dump CONFIGS/testfs-client /tmp/testfs-client' /dev/mapper/mpath0
debugfs 1.40.7.sun3 (28-Feb-2008)
/dev/mapper/mpath0: catastrophic mode - not reading inode or group bitmaps
# llog_reader /tmp/testfs-client
Header size : 8192
Time : Fri Oct 31 16:50:52 2008
Number of records: 20
Target uuid : config_uuid
-----------------------
#01 (224)marker 3 (flags=0x01, v1.6.6.0) testfs-clilov 'lov setup' Fri Oct 3 1 16:50:52 2008-
#02 (120)attach 0:testfs-clilov 1:lov 2:testfs-clilov_UUID
#03 (168)lov_setup 0:testfs-clilov 1:(struct lov_desc) uuid=testfs-clilov_UUID stripe:cnt=1
size=1048576 offset=0 patt ern=0x1
#04 (224)marker 3 (flags=0x02, v1.6.6.0) testfs-clilov 'lov setup' Fri Oct 3 1 16:50:52 2008-
#05 (224)marker 4 (flags=0x01, v1.6.6.0) testfs-MDT0000 'add mdc' Fri Oct 31 16:50:52 2008-
#06 (088)add_uuid nid=172.31.97.1@o2ib(0x50000ac1f6101) 0: 1:172.31.97.1@o2ib
#07 (128)attach 0:testfs-MDT0000-mdc 1:mdc 2:testfs-MDT0000-mdc_UUID
#08 (144)setup 0:testfs-MDT0000-mdc 1:testfs-MDT0000_UUID 2:172.31.97.1@o2 ib
#09 (088)add_uuid nid=172.31.97.2@o2ib(0x50000ac1f6102) 0: 1:172.31.97.2@o2ib
#10 (112)add_conn 0:testfs-MDT0000-mdc 1:172.31.97.2@o2ib
#11 (128)mount_option 0: 1:testfs-client 2:testfs-clilov 3:testfs-MDT0000-mdc
#12 (224)marker 4 (flags=0x02, v1.6.6.0) testfs-MDT0000 'add mdc' Fri Oct 31 16:50:52 2008-
#13 (224)marker 8 (flags=0x01, v1.6.6.0) testfs-OST0000 'add osc' Fri Oct 31 16:51:29 2008-
#14 (088)add_uuid nid=172.31.97.2@o2ib(0x50000ac1f6102) 0: 1:172.31.97.2@o2ib
#15 (128)attach 0:testfs-OST0000-osc 1:osc 2:testfs-clilov_UUID
#16 (144)setup 0:testfs-OST0000-osc 1:testfs-OST0000_UUID 2:172.31.97.2@o2 ib
#17 (088)add_uuid nid=172.31.97.1@o2ib(0x50000ac1f6101) 0: 1:172.31.97.1@o2ib
#18 (112)add_conn 0:testfs-OST0000-osc 1:172.31.97.1@o2ib
#19 (128)lov_modify_tgts add 0:testfs-clilov 1:testfs-OST0000_UUID 2:0 3:1
#20 (224)marker 8 (flags=0x02, v1.6.6.0) testfs-OST0000 'add osc' Fri Oct 31 16:51:29 2008-
#
5.7.1.2 The writeconf Procedure
Sometimes a client does not connect to one or more components of the file system despite the
file system appearing healthy. This might be caused by information in the configuration logs.
Frequently, this situation can be corrected by the use of the "writeconf procedure" described in
the Lustre Operations Manual section 4.2.3.2.
56 Using HP SFS Software
- 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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