Veritas Storage Foundation™ 5.0.1 for Oracle RAC Installation, Configuration, and Administrator's Guide Extracts for the HP Serviceguard Storage Management Suite on HP-UX 11i v3
Table Of Contents
- Veritas Storage Foundation™ 5.0.1 for Oracle RAC Installation, Configuration, and Administrator's Guide Extracts for the HP Serviceguard Storage Management Suite on HP-UX 11i v3
- Table of Contents
- Preface
- 1 Introducing Serviceguard Extension for RAC
- About Serviceguard Extension for RAC
- How Serviceguard Extension for RAC Works (High-Level Perspective)
- Component Products and Processes of SG SMS Serviceguard Cluster File System for RAC
- Communication Infrastructure
- Cluster Interconnect Communication Channel
- Low-level Communication: Port Relationship Between GAB and Processes
- Cluster Volume Manager
- Cluster File System
- Oracle Disk Manager
- Additional Features of Serviceguard Extension for RAC
- 2 Planning SGeRAC Installation and Configuration
- 3 Configuring the Repository Database for Oracle
- 4 Using Storage Checkpoints and Storage Rollback
- About Storage Checkpoints and Storage Rollback in SGeRAC
- Using Storage Checkpoints and Storage Rollback for Backup and Restore
- Determining Space Requirements for Storage Checkpoints
- Performance of Storage Checkpoints
- Backing up and Recovering the Database Using Storage Checkpoints
- Guidelines for Oracle Recovery
- Using the Storage Checkpoint Command Line Interface (CLI)
- Examples of Using the Command Line Interface
- Prerequisites
- Creating or Updating the Repository Using dbed_update
- Creating Storage Checkpoints Using dbed_ckptcreate
- Displaying Storage Checkpoints Using dbed_ckptdisplay
- Mounting Storage Checkpoints Using dbed_ckptmount
- Unmounting Storage Checkpoints Using dbed_ckptumount
- Performing Storage Rollback Using dbed_ckptrollback
- Removing Storage Checkpoints Using dbed_ckptremove
- Cloning the Oracle Instance Using dbed_clonedb
- 5 Using FlashSnap for Backup and Recovery
- About Veritas Database FlashSnap
- Planning to Use Database FlashSnap
- Preparing Hosts and Storage for Database FlashSnap
- Summary of Database Snapshot Steps
- Creating a Snapplan (dbed_vmchecksnap)
- Validating a Snapplan (dbed_vmchecksnap)
- Displaying, Copying, and Removing a Snapplan (dbed_vmchecksnap)
- Creating a Snapshot (dbed_vmsnap)
- Backing Up the Database from Snapshot Volumes (dbed_vmclonedb)
- Cloning a Database (dbed_vmclonedb)
- Resynchronizing the Snapshot to Your Database
- Removing a Snapshot Volume
- 6 Investigating I/O Performance for SGeRAC: Storage Mapping
- A Troubleshooting SGeRAC
Figure 5-6 shows a typical configuration when snapshot volumes are used on a secondary host.
Figure 5-6 Example System Configuration for Database Backup on a Secondary Host
Table 5-8 Backup Snapshot Notes
• You must be logged in as the Oracle database administrator to use dbed_vmclonedb
command.
• Before you can use the dbed_vmclonedb command, you must validate a snapplan and create
a snapshot.
• The volume snapshot must contain the entire database.
• Before you can use the dbed_vmclonedb command with the -r relocate_path option
(which specifies the initial mount point for the snapshot image), the system administrator
must create the mount point and then change the owner to the Oracle database administrator.
Prerequisites
• The dbed_vmclonedb command can be used on the secondary host.
• In a single-host configuration, the primary and secondary hosts are the same.
• In a single-host configuration, -r relocate_path is required.
• In a two-host configuration, the vxdbavol=vol_name option is required.
• If SNAPSHOT_MODE is set to offline or instant, a two-host configuration is required and -r
relocate_path is not allowed.
• See the dbed_vmclonedb(1M) manual page for more information.
Usage Notes
NOTE: You cannot access Database FlashSnap commands (dbed_vmchecksnap, dbed_vmsnap,
and dbed_vmclonedb) with the VxDBA menu utility.
Mounting the Snapshot Volumes and Backing Up
Before using the snapshot volumes to do a backup, you must first mount them.
To mount the snapshot volumes
• Use the dbed_vmclonedb command as follows:
# /opt/VRTS/bin/dbed_vmclonedb -S ORACLE_SID -g snap_dg -o
mount,new_sid=new_sid -f SNAPPLAN [-H ORACLE_HOME] [-r relocate_path]
You can now back up an individual file or a group of files under a directory onto the backup
media.
In this example, snapshot volumes are mounted.
# /opt/VRTS/bin/dbed_vmclonedb -S PROD -g SNAP_PRODdg -o
mount,new_SID=NEWPROD -f snap1 -r /clone/single
dbed_vmclonedb started at 2006-03-02 15:35:41
Mounting /clone/single/prod_db on /dev/vx/dsk/SNAP_PRODdg/SNAP_prod_db.
Backing Up the Database from Snapshot Volumes (dbed_vmclonedb) 75