Database Optimization & Maintenance Tim Richard. 2013 ECM Training Conference#dbwestECM Agenda SQL Configuration OnBase DB Planning Backups Integrity

Database Optimization & Maintenance

Tim Richard

2013 ECM Training Conference #dbwestECM

Agenda

• SQL Configuration• OnBase DB Planning• Backups• Integrity• Optimization• Tips and Recommendations


SQL Server: Databases

• Five system databases on a SQL Server instance– master– model– msdb– TempDB– Resource database

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System Database Recommendations

• Pre-size TempDB and the transaction log• Create multiple files for TempDB• Resist shrinking the database

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SQL Server Configuration

• Parallelism• Memory• TempDB

– Create multiple files• ODBC drivers

– Verify client version vs. server– Verify most recent version


Agenda


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The OnBase DB

• What information does it store?– Critical component in an OnBase solution• Data• Performance

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Before you create the database…

• Where should the files be located?– This is a business decision– If you’re not sure where to put them…

• Refer to the Database Installation Guide on Community

• Where should the files ideally be located?– On drives that can provide the necessary response time (1-5 ms log

writes, > 10 ms data writes)– RAID 1+0, 15K

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Sizing

• Sizing guide from DRG• Check existing utilization– Pay attention to size on disk vs. % utilized

Estimating Database Size

DBSpace Percentage of totalDBSpace1 33DBSpace2 7DBSpace3 4DBSpace4 0DBSpace5 0

DBSpace6 6

DBSpace7 1DBSpace8 1DBSpace9 9DBSpace10 6

DBSpace2i 6DBSpace3i 9DBSpace6i 7DBSpace9i 11

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Hyland Customer DB Size

• Small < 20 GB< 10,000,000 documents

• Medium/Large< 100 GB< 100,000,000 documents

• Enterprise> 100 GB> 100,000,000 documents

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Auto-File Growth Settings

• What should File Growth be for each DBSpace?– 5 for 3*, 4, 5, 3i*– 100 for 7, 8– 512 for 1, 2, 6, 9, 10, 2i, 6i, 9i


Agenda


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Backups: what you need to know first

• Evaluate your current backup process– How often are backups taken (full, diff, log)?– Where are copies stored on site?– Where are copies stored off site?– How often are tapes/disks/etc. rotated?

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Backups: what you need to know next

• Determine your recovery strategy– RPO = Recovery Point Objective– RTO = Recovery Time Objective– Do you need High Availability?

• Establish a SLA

• Test, test, test, and then test again

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Backup Tasks

• When was last backup?• When was last transaction log backup?• Creating a backup– Full vs. differential vs. log

• Set up a maintenance plan• Restore the backup


Agenda


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Integrity checks: what you need to do

• Create a job to check integrity on a regular basis• Create alerts to monitor for errors:– 823: Page not read– 824: Torn page– 825: Impending trouble

• Regularly check hardware for problems

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Integrity Tasks

• Run CHECKDB• Page verify option• Set up a maintenance plan• Set up alerts


Agenda


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Optimizations: what you need to do

• Rebuild indexes on a regular basis• Update statistics with 100% sample• Update index statistics AND column level

statistics

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Updating Statistics

• As part of Index Rebuilds– Only updates index statistics– 100% sample

• Automatically– When 20% of the rows + 500 change– Not 100% sample– Enables query optimization in 2005 & 2008*

• Manually (UPDATE STATISTICS or sp_updatestats)

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Optimization Tasks - Fragmentation

• Rebuild – >40% fragmentation– Offline

• Reorganize– >10% and <40% fragmentation– Online

• Typically fragmented tables– Itemdata10– Itemlc– Keyword tables

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Optimization Best Practices

• Rebuild indexes regularly• Use 100% sample for statistics• Differences in SQL 2000 vs. 2005/2008• Revisit maintenance plans


Agenda


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User’s Role in Performance• Database is a shared resource– Each activity consumes part of the resource

• Best Practice for User Searches– Retrieve < 100 documents– Selective search criteria– Use Keywords and Dates– Avoid Leading Wildcards

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Suggestions

• Keyword creation– Smart keywords, use Keyword Type Groups if possible

• Educate users on negative effects of actions• Be cautions with API programs/VB Scripts (performance)• Utilize Custom Queries• Disable Document List Refresh• Enable Document Type Query Restrictions

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More Suggestions

• Setup required keyword for retrieval• Enable option to select user range of batches in Committed queues• Security Keywords

– EQUAL vs. NOT EQUAL– Perform Security Keyword Checking During Database Query

• Other Database Settings (Utils)• Tuning Parameters (Client and ini file)

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Thank You!

Documents

Database Optimization & Maintenance Tim Richard. 2013 ECM Training Conference#dbwestECM Agenda SQL Configuration OnBase DB Planning Backups Integrity