http://sqlblog.com/search/SearchResults.aspx?o=DateDescending&tag=Conferences,High+Availability,SQL+2008&orTags=0Search results matching tags 'Conferences', 'High Availability', and 'SQL 2008'en-USCommunityServer 2.1 SP2 (Build: 61129.1)http://sqlblog.com/blogs/rick_heiges/archive/2007/11/09/who-s-got-your-db-s-back.aspxFri, 09 Nov 2007 14:05:00 GMT21093a07-8b3d-42db-8cbf-3350fcbf5496:3263RickHeiges<P>While I was reviewing one of the sessions from the PASS Community Summit using the streaming media on some new things in SQL Server 2008, I stumbled across a new reason to mirror.&nbsp; The primary reason to mirror of course is availability and to give DBAs that warm fuzzy feeling that another up-to-date (or almost up-to-date if using Async mode) copy of your DB is ready to step into action at a moment's notice.&nbsp; That has not changed in 2008, but another feature was been revealed.&nbsp;&nbsp;It is the "Auto Page Repair" feature.&nbsp; If the Principal encounters a page that is corrupted, it will ask the mirror to send of copy of that page for repair.&nbsp; The mirror is of course replaying the transactions that are sent to it.&nbsp; If the Mirror encounters a problem, it will request a copy of the page from the Principal.&nbsp; This is not a new RAID level, but we could make up a new term like DB-RAID - -&nbsp; ;-)&nbsp; Again, it gives the DBA that warm fuzzy feeling that things will be OK.&nbsp; </P> <P>&nbsp;</P>