Disk IOPS requirement for SharePoint 2010 databases

After going through the SharePoint 2010 planning guide thought it would be good to capture the Disk IOPS requirement for various databases.

Databases	IOPS Recommended
Search Crawl DB	3500-7000
Search Property DB	2000
Search Admin DB	Minimum 100
Content DB	200-4000
First Estimate  Database size = ((D × V) × S) + (10 KB × (L + (V × D)))
Configuration DB	Minimum 100
Note: Recommendation is to allocate 2 GB as a minimum for Config DB, it will consume 40 MB for each 50,000 site collection , recovery model should be set to simple as config DB can grow large but if you're using DB mirroing then recovery model should be full
Central Admin DB	Minimum 100
Usage and Health DB	Minimum 100
Business Connectivity Services DB	Minimum 100
User Profile Service App:  Profile DB	Minimum 100
User Profile Service App:  Synchronization DB	Minimum 100
User Profile Service App:  Social DB	Minimum 100
User Profile Service App:  Tagging DB	Minimum 100
Web Analytics - Staging DB	Minimum 100
Web Analytics - Reporting DB	Minimum 100
State Service DB	Minimum 100
Managed Metadata DB	Minimum 100
Reporting Services Configuration DB	Minimum 100

This is just a starting point there is no hard and fast rule that these are the final numbers it all depends on your capacity planning you will come up with the numbers. Reference for this is the SharePoint 2010 Planning Guide