Can you give me a matrix or explain how to calculate ROI and Cost/Benefit on a generic basis or a hospital environment?
Any help would be appreciated.
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:
1-Increased Disk Utilization (DAS=<40% where SAN=>80%!) 2-Deferring Disk Procurement 3-Terabytes (TB)-per-Administrator Improvement 4-Reduce Data Center Rack/Floor Space 5-Deferring Tape Library Procurement 6-New Disaster Recovery (DR) Capabilities 7-On-line Recoverability Options 8-Improved Data Path Availability 9-Reduction of General-purpose UNIX (r) and Microsoft (r)Windows NT (r) Servers 10-Improve LAN/WAN Performance, Avoid Upgrades 11-Reduce/Eliminate Backup Servers 12-Reduce/Eliminate Batch, Backup Windows 13-Storage on Demand
You can find more info on this timely subject at: http://www.hds.com/pdf/3SAN_ROI_Wht_Ppr.pdf
This was first published in August 2001