1. Partial Database Availability
High Availability
Partial Database Availability

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3. About me 10+ years experience with SQL Server Consultant Trainer
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4. Agenda What does RPO/RTO mean? What HA/BC options are there?
What is a database?
What is a database file?
What is a filegroup?
Bringing them together – Database, Filegroup, File
Demo: creating a database with multiple files and filegroups
Restore scenarios
Disaster happens 
Demo: Online piecemeal restore
Additional materials/readings

5. What does RPO/RTO mean? RPO: Recovery Point Objective
What a customer wants is 0
What a DBA wants is >0 
Plan backup strategy
RTO: Recovery Time Objective
Define/document restore steps
Define/document case scenarios + script them!
Practice, practice, practice!

6. What HA/BC options are there?
There are many different options in SQL Server like:
Log Shipping
Database Mirroring (Deprecated )
Failover Cluster Instance (FCI)
Availability Groups (2012 or later version)
Partial Database Availability

7. What is a database? Containers Tables Views Procedures Functions Users
Roles
Schemas
Boundaries
Security Accounts
Permissions
Default collation
Backed by Files
Data files
Log files
Organized in filegroups

8. What is a database file? Every database has:
a primary data file: it contains the startup information for the database and points to the other files in the database. Recommended extension is mdf.
optionally one or more secondary data file: it contains user-defind data. Recommended extension is ndf.
a transaction log file: it holds the log information that is used to recover the database. There must be at least one log file for each database. Recommended extension is ldf.

9. What is a filegroup?
Filegroup is a logical container for data files: group data files together for administrative, data allocation, and placement purposes.
Every database has:
a PRIMARY filegroup: contains the primary file. All system tables are allocated to the primary filegroup.
optionally additional user-defined filegroup(s)

10. Bringing them together – Database, Filegroup, File
PRIMARY
FG1
FGn
File1.mdf
File3.ndf
FileN.ndf
File2.ndf
File4.ndf
FileM.ndf
FileX.ndf
FileY.ndf
FileZ.ndf
Transaction log
Log1.ldf
logN.ldf

11. Demo device
Original idea from Kimberly L.Tripp’s SQL MCM Readiness videos
It is *NOT* production ready!!! 

12. Demo
Creating a database with multiple files and filegroups

13. MultiFG Database PRIMARY FG1 FG2 MultiFG_Data – C:\ FG1_Data1 – E:\
FG2_Data1 – G:\
FG1_Data2 – F:\
FG2_Data2 – H:\
Transaction log
MultiFG_Log – C:\

14. Restore scenarios Piecemeal restore can be: Depends on : offline
online
Depends on :
Recover models:
full recovery model
simple recovery model
SQL Server edtion:
Enterprise
not Enterprise (Standard, Web, Express)

15. Disaster happens  PRIMARY FG1 FG2 MultiFG_Data – C:\ FG1_Data1 – E:\
FG2_Data1 – G:\
FG1_Data2 – F:\
FG2_Data2 – H:\
Transaction log
MultiFG_Log – C:\

16. Demo
online partial restore with Enterprise Editon + full recovery model

17. Additional materials/readings
SQL Server 2008 Microsoft Certified Master (MCM) Readiness Videos – Partial Database Availability & Online Piecemeal Restore:
Piecemeal Restores:
Piecemeal Restore of Databases With Memory-Optimized Tables:

18. We would like to thank our Sponsors!