Disaster Recovery Considerations
May 23, 2010What is it
“Ability to recover from the loss of a complete site, whether due to a natural disaster or malicious intent.”
“A plan of action to recover from an unlikely event of a severe or catastrophic business disruption.”
It’s NOT a planning for Mean-Time-To-Recovery (MTTR) from daily operational risks.
MTTR Choices
On-Demand, Redundant Scaling Technologies
Use of attached clustered storage allows quick use of client growth
2N Redundancy at Core Infrastructure Level
Burstable, Redundant Internet Connectivity
Load Balancing
Dual Core CPU, Caching, Hyper-threading
Clustering Technology
Recovery Oriented Choices:
Autonomic Capabilities – Datacenter / Network / Systems
Warm Standby (rack, stacked and powered up)
SnapMirror Technologies
Oracle DataGuard & RMAN Technologies
Cold Standby
“Platinum” Service Contracts from Service Providers and Vendors
N+1 Redundancy capabilities at client level
Levels of Data Backups
1st level backup:
Using snapshot technology, file systems & database backed up on Network Attached Storage systems
2nd level backup:
Using NetApp NearStore devices, 1st level backups are stored online, off-site for 30 days
3rd level backup:
Weekly backups are stored in tape, off-site for 30 days
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