Veritas FlashSnap Point-In-Time Copy Solutions 5.0.1 Administrators Guide, HP-UX 11i v3, First Edition, November 2009

Technical Support ............................................................................................... 4
Chapter 1 Point-in-time copy solutions .............................................. 9
About point-in-time copy solutions ................................................... 9
Applications of point-in-time copy solutions ..................................... 10
Point-in-time copy scenarios .................................................... 11
Veritas software used in point-in-time copy scenarios ......................... 11
Persistent FastResync of volume snapshots ................................ 14
Instant volume snapshots ........................................................ 14
Disk group split/join ............................................................... 15
Storage Checkpoints ............................................................... 15
Veritas FlashSnap Agent for Symmetrix ..................................... 16
Implementing point-in time copy solutions on a primary host .............. 17
Implementing off-host point-in-time copy solutions ........................... 19
Data integrity in volume snapshots ........................................... 25
Choices for snapshot resynchronization ..................................... 25
Chapter 2 Setting up volumes for instant snapshots ..................... 27
About setting up volumes for instant snapshots ................................. 27
Additional preparation activities ..................................................... 28
Preparing a volume for instant snapshot operations ........................... 29
Considerations for placing DCO plexes ....................................... 32
Creating a volume for use as a full-sized instant snapshot ................... 35
Creating a shared cache object ........................................................ 36
Tuning the autogrow attributes ................................................ 38
Chapter 3 Online database backup .................................................... 41
About online database backup ........................................................ 41
Making a backup of an online database on the same host ..................... 42
Making an off-host backup of an online database ............................... 47
Chapter 4 Off-host cluster file system backup ................................ 53
About off-host cluster file system backup ......................................... 53
Mounting a file system for shared access .......................................... 54
Contents