What's New in the Backup and Restore Guide, Version 12.10

This publication includes information about new features and changes in existing functionality.

The following changes and enhancements are relevant to this publication. For a complete list of what's new in this release, go to What's new in Informix®.

Table 1. What's New in IBM Informix Backup and Restore Guide for Version 12.10.xC8
Overview	Reference
Encrypt storage spaces You can now encrypt storage spaces. The data in encrypted storage spaces is unintelligible without the encryption key. Encrypting storage spaces is an effective way to protect sensitive information that is stored on media. You enable storage space encryption by setting the new DISK_ENCRYPTION configuration parameter. Subsequently, storage spaces that you create are automatically encrypted by default. However, you can choose to create an unencrypted storage space with onspaces -c commands or SQL administration API commands. You can also encrypt or decrypt storage spaces during a restore with the ON-Bar or ontape utilities. You can see if storage spaces are encrypted with the onstat -d and oncheck -pr commands.	onbar -r syntax: Restoring data ontape utility syntax: Perform a restore

Table 2. What's New in IBM Informix Backup and Restore Guide for Version 12.10.xC6
Overview	Reference
Restore tenant databases to a point in time You can now restore a tenant database to a particular point in time. Run the onbar -r command with the new -T option to specify the tenant database and the -t option to specify the point in time.	onbar -r syntax: Restoring data
Control restore resources You can set the number of parallel processes to run during a restore independently from the number of processes for a backup with the new BAR_MAX_RESTORE configuration parameter. Previously, the BAR_MAX_BACKUP configuration parameter controlled the number of processes for both backups and restores.	BAR_MAX_RESTORE configuration parameter

Table 3. What's New in IBM Informix Backup and Restore Guide for Version 12.10.xC5
Overview	Reference
Larger maximum tape size for backups The maximum value of the TAPEDEV and LTAPEDEV configuration parameters is now 9223372036854775807 KB, which is equivalent to 9 ZB.	TAPESIZE configuration parameter LTAPESIZE configuration parameter

Table 4. What's New in IBM Informix Backup and Restore Guide for Version 12.10.xC2
Overview	Reference
Restore critical files You can restore the following critical files that you backed up with the ON-Bar utility: The onconfig file UNIX: The sqlhosts file The ON-Bar emergency boot file: ixbar.`servernum` The server boot file: oncfg_`servername`.`servernum` Run the onbar -r command with the -cf yes option to restore critical files during a cold restore. Run the onbar -r -cf only command to restore only the critical files. Previously, you restored critical files by using storage manager commands.	onbar -r syntax: Restoring data
Optimize backups for data deduplication If your storage manager is enabled for data deduplication, use the IFX_BAR_USE_DEDUP environment variable to make backup operations more efficient. The new environment variable optimizes the format of backup images for deduplication processes.	IFX_BAR_USE_DEDUP environment variable
Enhanced support for IBM® Tivoli® Storage Manager features If you use IBM Tivoli Storage Manager (TSM) with the ON-Bar utility to back up and restore data, you can configure ON-Bar to support the following TSM features: You can speed back up and restore processes by setting a longer transfer buffer size. Set the IFX_BAR_NO_LONG_BUFFERS environment variable to prevent long transfer buffers. You can replicate or import and export backup objects between TSM servers. Set the IFX_TSM_OBJINFO_OFF environment variable to prevent this feature.	Configuring ON-Bar for optional TSM features
ON-Bar activity log timestamps When a storage manager process hangs, the timestamp for the process in the ON-Bar activity log is inaccurate. The inaccurate timestamp represents the time at which the storage manager process started hanging instead of the current time. Inaccurate timestamps in the ON-Bar activity log are identified with an asterisk. The accompanying message lists the number of minutes after the timestamp that the storage manager process hung.	Message format in the ON-Bar message log

Table 5. What's New in IBM Informix Backup and Restore Guide for Version 12.10.xC1
Overview	Reference
Enhanced built-in storage management for backup and restore IBM Informix Primary Storage Manager, which replaces IBM Informix Storage Manager (ISM), is easier to set up and use, even in embedded environments. You use the Informix Primary Storage Manager onpsm utility to manage storage for ON-Bar backup and restore operations, including parallel backups, that use file devices (disks). The onsmsync utility provides new commands that you can use to export backups to, and import them from, Informix Primary Storage Manager external device pools.	IBM Informix Primary Storage Manager The onsmsync utility Informix Primary Storage Manager configuration parameters