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Moss 2007 High Availability
 

Moss 2007 High Availability

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    Moss 2007 High Availability Moss 2007 High Availability Presentation Transcript

    • Rich Olivieri , SharePoint Architect, MicroLink LLC [email_address]
    • Redundancy and Availability
      • “ Redundancy refers to the use of multiple servers in a load-balanced environment for any of several purposes, such as to improve farm performance, to scale out to accommodate additional users, and to improve availability.”
      • “ Availability is a more specialized concept that refers to a multiple-server environment that is designed to accept connections and operate normally even when one or more of the servers in the farm are not operational.”
      • - http://technet.microsoft.com/en-us/library/cc263044.aspx
    • 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
    • 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
    • Availability Requirements
      • Recovery Time Objective (RTO). RTO is the allowable duration that an application can be down.
      • Recovery Point Objective (RPO). RPO is the amount of data loss that the customer can tolerate.
      • -http://technet.microsoft.com/en-us/library/cc531332.aspx
    • Cannot Connect to ….
      • The dreaded “Cannot connect to the database server…or configuration database…”
      • SQL Clustering – availability at the SQL instance
      • SQL Mirroring – availability at the database.
      • * Mirroring available with SQL 2005 SP 1
    •  
    •  
    • References
      • Database Mirroring Best Practices and Performance Considerations. Microsoft(r) TechNet. [Online] March 10, 2006. [Cited: 10 09, 2008.] http://www.microsoft.com/technet/prodtechnol/sql/2005/technologies/dbm_best_pract.mspx.
      • Case Study of High Availability for SharePoint using Database Mirroring (white paper). Microsoft TechNet. [Online] April 2008. [Cited: September 22, 2008.] http://technet.microsoft.com/en-us/library/cc531332.aspx.
      • Microsoft. How to transfer the logins and the passwords between instances of SQL Server 2005. Microsoft Help and Support. [Online] July 11, 2006. [Cited: October 13, 2008.] http://support.microsoft.com/kb/918992/.
      • Microsoft. Using Database Mirroring with Office SharePoint Server and Windows SharePoint Services. Microsoft TechNet. [Online] July 24, 2008. [Cited: October 13, 298.] http://technet.microsoft.com/en-us/library/cc262910.aspx.
      • Talmage, Ron. Database Mirroring in SQL Server 2005. Microsoft TechNet. [Online] April 1, 2005. [Cited: October 14, 2008.] http://www.microsoft.com/technet/prodtechnol/sql/2005/dbmirror.mspx.
      • Microsoft. Setting Up Login Accounts for Database Mirroring. MSDN: SQL Server Developer Center. [Online] September 2007. [Cited: October 14, 2008.] http://msdn.microsoft.com/en-us/library/ms366346(SQL.90).aspx.
      • Curry, Ben and English, Bill. Microsoft Office SharePoint Server 2007 Best Practices. Redmond: Microsoft Press, 2008.
      • Plan for redundancy (Office SharePoint Server). Microsoft TechNet. [Online] July 15, 2008. [Cited: September 22, 2008.] http://technet.microsoft.com/en-us/library/cc263044.aspx.
      • Plan for availability (Office SharePoint Server). Microsoft TechNet. [Online] September 5, 2008. [Cited: September 22, 2008.] http://technet.microsoft.com/en-us/library/cc748824.aspx.