Hp StoreAll Storage User Manual Page 48
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NFS clients cannot access an exported file system
An exported file system has been unmounted from one or more file serving nodes, causing IBRIX
software to automatically disable NFS on those servers. Fix the issue causing the unmount and
then remount the file system.
User quota usage data is not being updated
Restart the quota monitor service to force a read of all quota usage data and update usage counts
to the file serving nodes in your cluster. Use the following command:
ibrix_qm restart
File system alert is displayed after a segment is evacuated
When a segment is successfully evacuated, a segment unavailable alert is displayed in the GUI
and attempts to mount the file system will fail. There are several options at this point:
• Mark the evacuated segment as bad (retired), using the following command. The file system
state changes to okay and the file system can now be mounted. However, the operation
marking the segment as bad cannot be reversed.
ibrix_fs -B -f FSNAME {-n RETIRED_SEGNUMLIST | -s RETIRED_LVLIST}
• Keep the evacuated segment in the file system. Take one of the following steps to enable
mounting the file system:
◦ Use the force option (-X) when mounting the file system:
ibrix_mount –f myFilesystem –m /myMountpoint –X
◦ Clear the “unavailable segment” flag on the file system with the ibrix_fsck command
and then mount the file system normally:
ibrix_fsck -f FSNAME -C -s LVNAME_OF_EVACUATED_SEG
SegmentNotAvailable is reported
When writes to a segment do not succeed, the segment status may change to
SegmentNotAvailable on the GUI and an alert message may be generated. To correct this
situation, take the following steps:
1. Identify the file serving node that owns the segment. This information is reported on the
Filesystem Segments panel on the GUI.
2. Fail over the file serving node to its standby. See the administration guide for your system for
more information about this procedure.
3. Reboot the file serving node.
4. When the file serving node is up, verify that the segment, or LUN, is available.
If the segment is still not available, contact HP Support.
SegmentRejected is reported
This alert is generated by a client call for a segment that is no longer accessible by the segment
owner or file serving node specified in the client's segment map. The alert is logged to the Iad.log
and messages files. It is usually an indication of an out-of-date or stale segment map for the affected
file system and is caused by a network condition. Other possible causes are rebooting the node,
unmounting the file system on the node, segment migrations, and, in a failover scenario, stale IAD,
an unresponsive kernel, or a network RPC condition.
To troubleshoot this alert, check network connectivity among the nodes, ensuring that the network
is optimal and any recent network conditions have been resolved. From the file system perspective,
48 Maintaining file systems
- Abstract 1
- Contents 3
- 4 Contents 4
- Contents 5 5
- 6 Contents 6
- Contents 7 7
- 8 Contents 8
- File system operations 9
- File system building blocks 11
- Configuring file systems 11
- Accessing file systems 12
- Creating a file system 13
- Creating a file system 15 15
- Creating a file system 17 17
- File limit for directories 19
- CLI procedures 21
- Mounting a file system 22
- Unmounting a file system 22
- Linux IBRIX 9000 clients 23
- Windows IBRIX 9000 clients 23
- Using Export Control 24
- 3 Configuring quotas 25
- 26 Configuring quotas 26
- 28 Configuring quotas 28
- Using a quotas file 29
- Exporting quotas to a file 30
- Format of the quotas file 30
- Using online quota check 31
- Deleting quotas 32
- Troubleshooting quotas 33
- 4 Maintaining file systems 34
- # ibrix_pv -i 35
- Lost+found directory 38
- Extending a file system 39
- How rebalancing works 40
- 42 Maintaining file systems 42
- Stopping rebalance tasks 44
- Deleting a file system 44
- Troubleshooting file systems 46
- 48 Maintaining file systems 48
- 5 Using NFS 51
- 52 Using NFS 52
- Shares panel 53
- Unexporting a file system 54
- Log files 56
- Active Directory 62
- LDAP ID mapping 62
- Local Groups 65
- Local Users 66
- Windows Share Administrators 68
- Configuring Active Directory 69
- Configuring LDAP 69
- Configuring LDAP ID mapping 70
- Delete a Local Group account: 72
- 7 Using SMB 73
- Monitoring SMB services 74
- SMB shares 75
- ◦ SE_MACHINE_VOLUME_PRIVILEGE 76
- ◦ SE_RESTORE_PRIVILEGE 76
- ◦ SE_TAKE_OWNERSHIP_PRIVILEGE 76
- SMB shares 77 77
- 78 Using SMB 78
- SMB shares 79 79
- Configuring SMB signing 80
- SMB shares 81 81
- 82 Using SMB 82
- Connecting to cluster nodes 83
- 84 Using SMB 84
- Saving MMC settings 85
- Adding SMB shares 85
- 86 Using SMB 86
- Deleting SMB shares 87
- Assigning attributes 89
- 90 Using SMB 90
- 99.30.8.23 91
- 99.30.8.24 91
- SMB clients 92
- Access Control Lists (ACLs) 93
- Restore operations 93
- Windows Clients Behavior 93
- 94 Using SMB 94
- New directories and files 95
- Troubleshooting SMB 96
- Troubleshooting SMB 97 97
- 8 Using FTP 98
- Managing FTP from the GUI 99 99
- 100 Using FTP 100
- Managing FTP from the GUI 101 101
- 102 Using FTP 102
- Managing FTP from the CLI 103
- The vsftpd service 104
- Accessing shares 105
- 9 Using HTTP 108
- Managing HTTP from the GUI 109
- 110 Using HTTP 110
- 112 Using HTTP 112
- 114 Using HTTP 114
- 116 Using HTTP 116
- Managing HTTP from the CLI 117
- 118 Using HTTP 118
- 120 Using HTTP 120
- Troubleshooting HTTP 121
- 122 Using HTTP 122
- 10 Managing SSL certificates 123
- 124 Managing SSL certificates 124
- Exporting a certificate 126
- Deleting a certificate 126
- 11 Using remote replication 127
- 128 Using remote replication 128
- GUI procedure 130
- CLI procedure 131
- Creating the target export 132
- Viewing replication tasks 133
- 134 Using remote replication 134
- Starting a replication task 135
- Filesystems panel 136
- Settings dialog box 136
- Target Settings dialog box 137
- Stopping a replication task 138
- 140 Using remote replication 140
- 142 Using remote replication 142
- 12 Managing data retention 143
- Data validation scans 144
- New file systems 145
- 146 Managing data retention 146
- 148 Managing data retention 148
- Making a file read-only 149
- Setting the atime 149
- File administration 150
- Specifying path lists 151
- Changing a retention period 152
- Running data validation scans 153
- 154 Managing data retention 154
- Checksum corruption: 156
- File corruption 157
- 158 Managing data retention 158
- Using remote replication 160
- 13 Express Query 162
- 164 Express Query 164
- Saving audit journal metadata 165
- 166 Express Query 166
- Managing auditing 167
- Audit log reports 168
- StoreAll REST API 170
- Component overview 171
- Metadata queries 172
- URL encoding 173
- Pathname parameters 173
- Optional version parameter 173
- API date formats 174
- File content transfer 175
- Download a file 176
- Delete a file 176
- Custom metadata assignment 177
- System and custom metadata 180
- System metadata available 180
- Wildcards 184
- Pagination 184
- HTTP syntax 185
- JSON response format 186
- Example queries 187
- 188 Express Query 188
- HTTP Status Codes 191
- Defining exclusions 196
- Managing Antivirus scans 199
- Viewing an active task 201
- Viewing Antivirus statistics 202
- Managing software snapshots 206
- [root@9000n1 .snapshot]# ls 207
- Accessing snapshots using NFS 208
- Accessing snapshots using SMB 208
- Deleting snapshots 209
- Backing up snapshots 212
- 16 Creating block snapshots 213
- Automated block snapshots 214
- Scheme dialog box appears 216
- Automated block snapshots 217 217
- ValueVariable 218
- File system namefsname 218
- 218 Creating block snapshots 218
- and ifs1_snap: 220
- 220 Creating block snapshots 220
- Viewing snapshot information 221
- 224 Creating block snapshots 224
- 17 Using data tiering 225
- 226 Using data tiering 226
- 228 Using data tiering 228
- 230 Using data tiering 230
- Viewing data tiering rules 231
- Running a migration task 232
- Assigning segments to tiers 233
- Defining the primary tier 234
- Creating a tiering policy 234
- Listing tiering rules 234
- Writing tiering rules 236
- Writing tiering rules 237 237
- Rule keywords 238
- Migration rule examples 238
- Ambiguous rules 239
- 18 Using file allocation 240
- 242 Using file allocation 242
- Setting segment preferences 243
- 244 Using file allocation 244
- Listing allocation policies 245
- 246 Using file allocation 246
- Contacting HP 247
- Related information 247
- HP websites 247
- Subscription service 247
- 20 Documentation feedback 248
- Glossary 249
- 250 Glossary 250
- 252 Index 252
- 254 Index 254
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