1. Automated Restore Script Output for Ola Hallengren’s Maintenance Solution
1) Start SQL Services on Local 2) Connect to Azure AlwaysOn 3) Delete all maintenance solution jobs

2. Jared Zagelbaum MCSE Data Management & Analytics
Featured blogger at SQLServerCentral.com
Technical Editor for SQL Server Publications
Consultant and Solutions Architect
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Automated Restore Script Output for Ola Hallengren’s Maintenance Solution

3. Ola Hallengren https://ola.hallengren.com E-mail: ola@hallengren.com
DBA with Saxo Bank, a Danish investment bank
Microsoft MVP – SQL Server
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Automated Restore Script Output for Ola Hallengren’s Maintenance Solution

4. Solution Overview SQL Server 2005* - 2016 Based on stored procedures
SQL Server 2005 end of support was April 12, 2016
Based on stored procedures
DatabaseBackup
DatabaseIntegrityCheck
IndexOptimize
CommandExecute
It’s free!
Download and install maintenance solution at end of slide using all defaults
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Automated Restore Script Output for Ola Hallengren’s Maintenance Solution

5. Common Parameter Declarations
@Databases
Common Parameter across DatabaseBackup, IndexOptimize, and DatabaseIntegrityCheck
Value
Description
SYSTEM_DATABASES
All system databases (master, msdb, and model)
USER_DATABASES
All user databases
ALL_DATABASES
All databases
Db1
Database Db1
Db1, Db2
Databases Db1 and Db2
USER_DATABASES, -Db1
All user databases except Db1
%Db%
All databases that have “Db” in the name
%Db%, -Db1
All databases that have “Db” in the name except Db1
ALL_DATABASES, -%Db%
All databases that do not have “Db” in the name
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Automated Restore Script Output for Ola Hallengren’s Maintenance Solution

6. DatabaseBackup Full, differential, and transaction log backup
Backup to local drives, network shares, or Azure Blob Storage
Mirroring and / or striping of backups to multiple files
Supports AlwaysOn Availability Groups
Checksum, Compression, and Encryption
Supports Red Gate SQL Backup, LiteSpeed, and Idera SQL Safe
Automatic handling of new databases
@ChangeBackupType
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Automated Restore Script Output for Ola Hallengren’s Maintenance Solution

7. Backup of AlwaysOn Availability Groups
Define a backup preference for the Availability Group
Prefer Secondary (Default)
Secondary only
Primary
Any Replica
Backup types supported on secondary replicas
Copy-only full backups
Regular transaction log backups
Function to check preferred backup replica
Sys.fn_hadr_backup_is_preferred_replica
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Automated Restore Script Output for Ola Hallengren’s Maintenance Solution

8. DatabaseBackup Availability Group Logic
Backup type
Backup performed on
Full backup
Primary replica
Full backup copy_only
Preferred replica
Differential backup
Transaction log backup
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Automated Restore Script Output for Ola Hallengren’s Maintenance Solution

9. DatabaseIntegrityCheck
DBCC CHECKDB
DBCC CHECKFILEGROUP
DBCC CHECKTABLE
DBCC CHECKALLOC
DBCC CHECKCATALOG
Options for PHYSICAL_ONLY and NOINDEX
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Automated Restore Script Output for Ola Hallengren’s Maintenance Solution

10. IndexOptimize Checks fragmentation
Defines three different fragmentation groups: low, medium, and high
Fully configurable thresholds and maintenance actions
Defaults to Microsoft recommended thresholds and actions
Low fragmentation <5% (Index < 1000 pages)
No Action
Medium fragmentation between 5 and 30%
Reorganize Index
High fragmentation >= 30%
Rebuild Index (Online if possible)
Supports AlwaysOn Availability Groups
Index maintenance performed on primary replica
Updates statistics (skips rebuilt indexes)
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Automated Restore Script Output for Ola Hallengren’s Maintenance Solution

11. Index Maintenance – Rebuild and Reorganize Limitations
Online rebuild only available in Enterprise Edition
Xml indexes and spatial indexes cannot be rebuilt online
Indexes with image or text cannot be rebuilt online
Indexes with varchar(max), nvarchar(max), or varbinary(max) can be rebuilt online in SQL Server 2012 or later
Index partitions can be rebuilt online only in SQL Server 2014 or later
An index with page locking disabled cannot be reorganized
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Automated Restore Script Output for Ola Hallengren’s Maintenance Solution

12. Solution Implementation
CommandExecute
Wrapper procedure that implements standardized logging throughout the components of the maintenance solution
CommandLog
CommandExecute writes maintenance solution procedures execution results to this table = ‘Y’
= ‘N’ for maintenance procedures
= ‘Y’ for SQLCMD job steps when created using maintenance solution script
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Automated Restore Script Output for Ola Hallengren’s Maintenance Solution

13. Solution Implementation (continued)
SQL Server Agent CmdExec Job Step
Sqlcmd and the –b option
Execution continues on after error
SQL Agent job reports failure in the end
SQL Server Agent Tokens
Uses SRVR for the local SQL Server instance
Uses SQLLOGDIR (new in 2014) for the output file directory
Uses JOBID, STEPID, STRTDT, and STRTTM to create unique output file names
Error log: C:\Program Files\Microsoft SQL Server\MSSQL12.MSSQLSERVER\MSSQL\Log Can be found in config manager startup settings
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Automated Restore Script Output for Ola Hallengren’s Maintenance Solution

14. DR and Availibility Planning
Maintenance Solution
DB health
Automated backups
Availability requirements
RPO
RTO
Schedule, Drill, Repeat!!!!!
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Automated Restore Script Output for Ola Hallengren’s Maintenance Solution

15. …not just me
“The real problem isn’t backups – it’s communication. Being a truly exceptional DBA means that your manager, plus every level all the way up the chain, is comfortable with your (in)ability to restore every system in the shop. Your managers have a list in writing of all the company’s systems, a high-level overview of how frequently they’re backed up, how frequently the restores are tested, and how long a restore will take.” -Brent Ozar
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16. DR Scenarios Houston…we have a problem Instance / database responsive
If possible, always take tail log backup before restore (Full recovery model)
Use Recovery Advisor
Backup files
What to restore
RTO include time to hunt and identify correct .bak(s) and .trn(s)!?
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17. Automated Stand by Restore Script
Extends Maintenance Solution
RestoreCommand
Adds additional job step to DatabaseBackup jobs
Requirements
@LogToTable = ‘Y’
At least one full backup logged to CommandLog
Job to manage script file cleanup (template provided)
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18. Restore Script solution limitations
Mirroring / Striping unsupported
Some complexities around Availability Group implementation
***User base + feedback = more features!***
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