== Backup with ontape (backing up to standard output) ==

1. Set LTAPEDEV /dev/null
2. Set TAPEDEV to STDIO in $ONCONFIG or use -t STDIO to redirect ontape backup to standard output.

Examples:

The following example shows how to create a level-0 archive of all storage spaces to standard output, which is diverted to a file named level_0_archive in the directory /backup:

ontape -s -L 0 >/backup/level_0_archive

The following example creates a level-1 archive to standard output, which is diverted to a pipe:

ontape -v -s -L 1|gzip - >/backup/level_1_archive.gz

	
== Monitoring backup ==

You can monitor the history of your last full-system backup using oncheck.

Execute oncheck -pr to display reserved-page information for the root dbspace


== Restoring with ontape (from standard input) ==

Before restoring backup stop the informix server  

onmode -k 

In the following example, ontape performs a physical restore from the file level_0_archive, which contains the archive previously performed to standard output:

cat level_0_archive | ontape -p

In the following example, ontape performs a restore of a level-0 archive, followed by a restore of a level-1 archive:

cat /home/level_0_archive /home/level_1_archive | ontape -r

Note: When these restores are completed, the database server is left in single-user mode.

Retruning from Quiescent to Online mode

onmode -m