Veritas Storage Foundation 5.1 SP1 Cluster File System Administrator"s Guide (5900-1738, April 2011)

Single network link and reliability ................................................... 29
Configuring low priority a link .................................................. 29
Split-brain and jeopardy handling ................................................... 30
Jeopardy state ....................................................................... 30
Jeopardy handling .................................................................. 30
About I/O fencing ......................................................................... 31
About I/O fencing for Storage Foundation Cluster File System
HA in virtual machines that do not support SCSI-3 PR ............ 31
About preventing data corruption with I/O fencing ...................... 31
About I/O fencing components ................................................. 33
About I/O fencing configuration files ......................................... 37
How disk-based I/O fencing works in different event
scenarios ........................................................................ 39
About server-based I/O fencing ................................................. 43
About Veritas Volume Manager cluster functionality .......................... 46
Shared disk groups overview .................................................... 47
Storage Foundation Cluster File System and Veritas Volume Manager
cluster functionality agents ..................................................... 52
Veritas Volume Manager cluster functionality ................................... 53
Chapter 3 Administering Storage Foundation Cluster File
System and its components ........................................ 55
About Storage Foundation Cluster File System administration ............. 55
Administering CFS ....................................................................... 56
Using cfsmount to mount CFS file systems ................................. 56
Resizing CFS file systems ........................................................ 57
Verifying the status of CFS file systems ...................................... 57
Verifying CFS port .................................................................. 57
CFS agents and AMF support .................................................... 58
CFS agent log files .................................................................. 58
Storage Foundation Cluster File System commands ...................... 58
mount, fsclustadm, and fsadm commands .................................. 59
Time synchronization for Cluster File Systems ............................ 60
Growing a Storage Foundation Cluster File System ....................... 60
The /etc/fstab file .................................................................. 61
When the Storage Foundation Cluster File System primary
fails ............................................................................... 61
Storage Checkpoints on Storage Foundation Cluster File
System ........................................................................... 61
Snapshots on Storage Foundation Cluster File System .................. 61
Administering CVM ...................................................................... 64
Listing all the CVM shared disks ............................................... 64
Contents8