Veritas Storage Foundation 5.1 SP1: Storage and Availability Management for Oracle (5900-1504, April 2011)

Creating a snapshot
Make sure the volumes used by the database are configured properly before
attempting to take a snapshot. This database configuration requires superuser
(root) privileges.
Note: Database FlashSnap commands must be run by the Oracle database
administrator.
Whenever you change the structure of the database (for example, by adding or
deleting datafiles, converting PFILE to SPFILE, or converting SPFILE to PFILE),
you must run dbed_update. For example:
$ /opt/VRTS/bin/dbed_update -S $ORACLE_SID -H $ORACLE_HOME
To create a snapshot image of a database
1
Create a snapshot mirror of a volume or volume set.
See “To create a snapshot mirror of a volume or volume set” on page 135.
2
Use the dbed_vmchecksnap command to create a snapplan template and check
the volume configuration to ensure that it is valid for creating volume
snapshots of the database.
The snapplan contains detailed database and volume configuration
information that is needed for snapshot creation and resynchronization. You
can modify the snapplan template with a text editor.
The dbed_vmchecksnap command can also be used to:
dbed_vmchecksnap -o listList all snapplans associated with a
specific ORACLE_SID
dbed_vmchecksnap -o remove -f
SNAPPLAN
Remove the snapplan from the SFDB
repository
dbed_vmchecksnap -o copy -f
SNAPPLAN
Copy a snapplan from the SFDB repository
to your local directory
See “Creating a snapplan (dbed_vmchecksnap)” on page 157.
3
Use the dbed_vmsnap command to create snapshot volumes for the database.
See “Creating a snapshot (dbed_vmsnap)” on page 174.
149Using Database FlashSnap for backup and off-host processing
About creating database snapshots