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Business
Continuity & Disaster Planning Requirements Defined
Business
Continuity and Disaster Planning require data
consistency with the synchronous replication of data
over
long-distances and / or journal replication to protect
against local and wide-area disasters. This technology
provides other benefits, including:
-
Maintaining more efficient data currency. Using
synchronous replication over a short distance in a
campus or metropolitan area cluster provides the
highest level of data currency without undue impact
to application performance.
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Permitting swift recovery. A
campus/metropolitan cluster implementation allows
for fast automated failovers after a local area
disaster with minimal to no transaction loss.
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Permitting recovery even when a disaster exceeds
traditional regional boundaries.
A wide-area disaster could disable both data centers
1 and 2, but with some manual interaction,
operations can be shifted to data center 3 and
continue after the disaster.
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Shifting to staffing outside the disaster area.
A wide-area disaster also affects people located
within the disaster area, both professionally and
personally. By moving operations out of the region
to a remotely located recovery data center,
operational responsibilities shift to people not
directly affected by the disaster.
Janco has defined a Template with a Backup and Backup
Retention policy that is a complete policy which can be
implemented
immediately. The document is provided in both Word 2003
and Word 2007 format and is easily modified. This
policy is included in the Disaster Recovery / Business
Continuity Template.
Below is a table from the policy.
|
Type of Data |
Minimal Backup
Policy |
Backup Retention
Policy |
|
System software |
Latest Version plus patches
At Least Weekly |
Annual (verified) Backup
Monthly Generations
Weekly Generations |
| Application software |
Latest Version plus patches
At Least Weekly |
Annual (verified) Backup
Monthly Generations
Weekly Generations |
|
System data |
Daily |
Annual (verified) Backup
Monthly Generations
Weekly Generations
Daily Generations |
| Application Data |
Daily with real time transaction files |
Annual (verified) Backup
Monthly Generations
Weekly Generations
Daily Generations |
|
Software licenses, encryption keys, & Protocol Data |
Weekly |
Annual (verified) Backup
Monthly Generations
Weekly Generations |
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