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BacPac
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If you are currently doing disk-to-disk backups, especially large databases, you could save many hours of down time and millions of blocks of disk space by using BacPac. BacPac is from 3 to 10 times faster than OpenVMS Backup when saving files disk-to-disk, and has the added benefit of producing much smaller savesets.
BacPac disk to disk backup
Comparison times on an Integrity Server running OpenVMS 8.3.
System - Image save of 28 GB system disk. User - Image save of 50 GB user disk. Database - Save of databse files approximately 2.2 GB.