Veritas File System 5.1 SP1 Administrator"s Guide (5900-1499, April 2011)

Failure to preserve extent attributes .......................................... 68
Chapter 4 Veritas File System I/O ....................................................... 69
About Veritas File System I/O ......................................................... 69
Buffered and Direct I/O ................................................................. 70
Direct I/O ............................................................................. 70
Unbuffered I/O ...................................................................... 71
Data synchronous I/O ............................................................. 71
Concurrent I/O ............................................................................ 72
Cache advisories .......................................................................... 73
Freezing and thawing a file system .................................................. 73
Getting the I/O size ...................................................................... 74
Enabling and disabling Concurrent I/O for a DB2 database ................... 74
Enabling Concurrent I/O ......................................................... 74
Disabling Concurrent I/O ......................................................... 75
Chapter 5 Quotas ................................................................................... 77
About quota limits ........................................................................ 77
About quota files on Veritas File System ........................................... 78
About quota commands ................................................................. 78
Using quotas ............................................................................... 78
Turning on quotas .................................................................. 79
Turning on quotas at mount time .............................................. 79
Editing user quotas ................................................................. 79
Modifying time limits ............................................................. 79
Viewing disk quotas and usage ................................................. 80
Displaying blocks owned by users ............................................. 80
Turning off quotas ................................................................. 80
Chapter 6 File Change Log ................................................................... 81
About File Change Log .................................................................. 81
About the File Change Log file ........................................................ 82
File Change Log administrative interface .......................................... 83
File Change Log programmatic interface .......................................... 85
Summary of API functions ............................................................. 87
Reverse path name lookup ............................................................. 88
Chapter 7 Multi-volume file systems ................................................. 89
About multi-volume support .......................................................... 89
About volume types ...................................................................... 90
Features implemented using multi-volume support ............................ 90
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