Database Mirroring brings to mind high-priced hardware solutions that are so restrictive and inflexible in their ability as well as their protection that they rarely if ever justify their incredible prices. Database Mirroring requires specific hardware in several locations tripling or quadrupling the cost of DASD, while only protecting DB2 data in very specific disasters. Any disaster caused by an internal application or human error, which combine for about 80% of errors, are not protected by mirroring. In many cases, when the mirroring system will protect against disasters, the switchover time from production to mirror takes far too long to make the solution viable.
CDB offers a software-based Database Mirroring Solution that protects against all errors normally guarded against by hardware backups, while being flexible to provide added benefit at the recovery site on existing infrastructure and hardware. No special hardware is needed.
While most Mirrors are unavailable to DB2 for processing, CDB leaves the mirrored site in RO mode at all times so that in addition to being a backup, the system is “HOT” for queries and offloaded reporting programs. Your backup site becomes an additional processor for your production environment to streamline your application environment for more intensive customer driven work so you remain in control.
Key Benefits
- Software-Based Mirroring
- Automatic mirroring at any time interval
- In the case of disaster, the switch is completed in minutes with submission of a single pre-prepared job
- Only completed UOWs are applied, keeping the data consistent at all times
- Source system is completely uninterrupted
- No Data Capture Required
- Target system or “Mirror” is available in RO mode at all times for off-loading queries or other production work
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