Can you give me a matrix or explain how to calculate ROI and Cost/Benefit on a generic basis or a hospital environment?
ROI on a SAN implementation depends on a number of factors. There are many white papers available from most of the SAN vendors that cover this in greater detail than I can here.
Here are some of the things that need to be taken into account when determining ROI:
- Increased Disk Utilization (DAS=<40% where SAN=>80%!)
- Deferring Disk Procurement
- Terabytes (TB)-per-Administrator Improvement
- Reduce Data Center Rack/Floor Space
- Deferring Tape Library Procurement
- New Disaster Recovery (DR) Capabilities
- On-line Recoverability Options
- Improved Data Path Availability
- Reduction of General-purpose UNIX (r) and Microsoft (r)Windows NT (r) Servers
- Improve LAN/WAN Performance, Avoid Upgrades
- Reduce/Eliminate Backup Servers
- Reduce/Eliminate Batch, Backup Windows
- Storage on Demand
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