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Tips from the Trenches

Tips from the Trenches. Rebekah Atkinson Steve Nye, Kathy Kennedy. Overview. OSI Resources Troubleshooting – The Big Picture Backups Buffering Archive Sizing Q&A. OSI Resources. OSI Resources. Log Files PIPC.Log (client & server) NT only, usually located in PIPCDat PIMessLogFile

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Tips from the Trenches

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  1. Tips from the Trenches Rebekah Atkinson Steve Nye, Kathy Kennedy

  2. Overview • OSI Resources • Troubleshooting – The Big Picture • Backups • Buffering • Archive Sizing • Q&A

  3. OSI Resources

  4. OSI Resources • Log Files • PIPC.Log (client & server) • NT only, usually located in \PIPC\Dat • PIMessLogFile • Unix only, located in $PIHOME/log • PI Server Log • PI - Healthcheck • PIGetMsg (PI3) • PISysMgr:PIMessLog.Txt (PI2)

  5. OSI Resources • Documentation • Interface Manuals (interfaces.osisoft.com) • Point attribute section • Startup file flags section • Troubleshooting section • Client Manuals • Server Manuals

  6. OSI Resources • Support Web Site (support.osisoft.com) • Online Call Center • Tracking of calls • New call entry • Searchable knowledge base • Bug reports • Engineering Plan • New Release Announcements • Feel Free to call us at Tech Support

  7. OSI Resources • Support Web Site (support.osisoft.com) • Online Call Center • Tracking of calls • New call entry • Searchable knowledge base • Bug reports • Engineering Plan • New Release Announcements • Feel Free to call us at Tech Support

  8. Troubleshooting The Big Picture

  9. Consider Big Picture • Ask yourself… • Did it ever work? • If so, what changed? • New software? New hardware? Etc… • Use Log Files to help isolate problem • No errors in client logs - Server problem • Always an error message somewhere! • Know your utilities

  10. Know Your Nodes

  11. Connection Troubleshooting

  12. Common Network Issues • DNS • If DNS is slow, connection may time out • Check HOSTS file • Multiple NIC cards • WAN traffic • Know your routers! • Port 5450 not initialized

  13. Backups

  14. Backups • Archives • Nightly & After Shift • Pi\dat Directory • Nightly & when server is shutdown • Site specific files & log files • Nightly • Recommend Test Recovery

  15. Backups • Known problems with PI 3.2 SR1 Script • Piartool –be ignored if system is busy • One Subsystem would stop while another was starting • New Beta Script • Verify that the subsystem is responsive • Schedule piartool -be to run 30 minutes after backup

  16. Example Script Change Rem Backup files owned by pibasess %BinPath%\pibasess -stop set BaseFiles=pipoints.dat piptattr.dat piptclss.dat pidigst.dat pidignam.dat piusr.dat piusrgrp.dat piusrctx.dat piptunit.dat piptalia.dat for %%i in (%BaseFiles%) do ( copy %DatPath%\%%i %BackupPath% ) Rem Restart pibasess and wait for it to become responsive Rem Record timestamps before and after to document the time this requires %BinPath%\pibasess -start %BinPath%\pidiag -t "*" %AdmPath%\piartool -block pibasess -verbose %BinPath%\pidiag -t "*"

  17. Buffering

  18. Buffering Basics • Why Buffer? • Avoid data loss during PI server shutdowns • Optimize your PI network transactions • Faster throughput • Set up a PI-API node • Data collection is not affected by the PI server

  19. Configuring Buffering • Must configure PICLIENT.INI • Turn Buffering ON • Define Maximum Buffer Size Size for down time and recovery time (size in KB) • Define how frequently it will attempt to reconnect (time in seconds)

  20. Example PICLIENT.INI [APIBUFFER] BUFFERING=1 MAXFILESIZE=500000 RETRYRATE=120

  21. Buffering Issues • Remember Configuration required, NT/Unix • Have plenty of disk space available • Buffering isn’t working? • Check BufServ Service Login • Make sure /host entry matches Default PI Server in PILOGIN.INI • All API programs must be stopped before bufserv can be restarted • Use bufutil program

  22. BUFUTIL Example

  23. Archives

  24. Archive Sizing • Why Change Sizes? • Added a new interface • Added more tags to an existing interface • Changed exception & compression on many tags • Added Performance Equations, Totalizers, Alarm tags, and/or Manual Entry tags

  25. Archive Sizing • Rules of Thumb… • 10-20 MB per 1000 tags • Smaller than the system RAM • Smaller than the backup media

  26. Example Bat File REM Create New Archives REM Specify path and size. d:\pi\adm\piarcreate d:\pi\archives\piarch.004 50 d:\pi\adm\piarcreate d:\pi\archives\piarch.005 50 d:\pi\adm\piarcreate d:\pi\archives\piarch.006 50 REM Register the new archives d:\pi\adm\piartool -ar d:\pi\archives\piarch.004 d:\pi\adm\piartool -ar d:\pi\archives\piarch.005 d:\pi\adm\piartool -ar d:\pi\archives\piarch.006

  27. Conclusion • Know Your Resources • Consider the Big Picture • Develop Your Backup Strategy • Buffer Your Data • Optimize Your Archive Size

  28. Questions??? • Ready for lunch? • (if you applaud, we will let you go to lunch)

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