3. SharePoint 2007 Redundancy Application Server Role Can be Redundant? Web Role Yes Query Role Yes Index Service Role No* Windows SharePoint Services 3.0 Search No Excel Calculation Services Yes
4. Number of Nines http://technet.microsoft.com/en-us/library/cc748824.aspx Acceptable uptime percentage Downtime per day Downtime per month Downtime per year 95 72.00 minutes 36 hours 18.26 days 99 14.40 minutes 7 hours 3.65 days 99.9 86.40 seconds 43 minutes 8.77 hours 99.99 8.64 seconds 4 minutes 52.60 minutes 99.999 0.86 seconds 26 seconds 5.26 minutes
![Rich Olivieri , SharePoint Architect, MicroLink LLC [email_address]](https://image.slidesharecdn.com/moss-2007-high-availability-1225331619208541-8/85/Moss-2007-High-Availability-1-320.jpg)
![Redundancy and Availability ,[object Object],[object Object],[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)