Veritas File System 4.1 Administrator's Guide (HP-UX 11i v3, February 2007)
Chapter 5 73
5 Storage Checkpoints
Storage Checkpoints are a feature of the VERITAS File System (VxFS ) provide point-in-time images of file
system contents. These frozen images of VxFS file systems can be used in a variety of applications such as
full and incremental online backups, fast error recovery, and product development testing. Storage
Checkpoint replicas of real time databases can also be used for decision support and an assortment of
database analyses.
This chapter discusses the following topics:
• “What is Storage Checkpoint ?” on page 74
• “How a Storage Checkpoint Works” on page 76
• “Types of Storage Checkpoints” on page 79
— “Data Storage Checkpoints” on page 79
— “Nodata Storage Checkpoints” on page 79
— “Removable Storage Checkpoints” on page 79
— “Non-mountable Storage Checkpoints” on page 80
• “Storage Checkpoint Administration” on page 81
— “Creating a Storage Checkpoint” on page 82
— “Removing a Storage Checkpoint” on page 83
— “Accessing a Storage Checkpoint” on page 83
— “Converting a Data Storage Checkpoint to a Nodata Storage Checkpoint” on page 85
• “Space Management Considerations” on page 93
• “File System Restore From Storage Checkpoints” on page 94
• “Storage Checkpoint Quotas” on page 99