Veritas File System 5.0 AdministratorÆs Guide, HP-UX 11i v3, First Edition, May 2008

Cache advisories .......................................................................... 64
Freezing and thawing a file system .................................................. 65
Getting the I/O size ...................................................................... 65
Chapter 5 Online backup using file system snapshots
About snapshot file systems ........................................................... 67
Snapshot file system backups ......................................................... 68
Creating a snapshot file system ....................................................... 69
Backup examples .......................................................................... 69
Snapshot file system performance ................................................... 70
Differences Between Snapshots and Storage Checkpoints .................... 71
About snapshot file system disk structure ......................................... 71
How a snapshot file system works ................................................... 72
Chapter 6 Storage Checkpoints
About Storage Checkpoints ............................................................ 75
How Storage Checkpoints differ from snapshots ........................... 76
How a Storage Checkpoint works ..................................................... 77
Copy-on-write ....................................................................... 79
Types of Storage Checkpoints ......................................................... 80
Data Storage Checkpoints ........................................................ 80
nodata Storage Checkpoints ..................................................... 81
Removable Storage Checkpoints ................................................ 82
Non-mountable Storage Checkpoints ......................................... 82
Storage Checkpoint administration .................................................. 82
Creating a Storage Checkpoint .................................................. 83
Removing a Storage Checkpoint ................................................ 84
Accessing a Storage Checkpoint ................................................ 85
Converting a data Storage Checkpoint to a nodata Storage
Checkpoint ..................................................................... 86
Space management considerations .................................................. 94
Restoring a file system from a Storage Checkpoint .............................. 95
Restoring a file from a Storage Checkpoint .................................. 95
Storage Checkpoint quotas ........................................................... 100
Chapter 7 Quotas
About quota limits ...................................................................... 101
About quota files on Veritas File System .......................................... 102
About quota commands ............................................................... 102
Using quotas ............................................................................. 102
Turning on quotas ................................................................ 103
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