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SLPs: Almost a Beginner's Guide

Learn how to create, manage, and optimize Storage Lifecycle Policies (SLPs) in NetBackup, with best practices and practical tips.

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SLPs: Almost a Beginner's Guide

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  1. SLPs, Almost a Beginner’s Guide Scott Holowinski Senior Backup Administrator OneNeck IT Services

  2. SLPs, Almost a Beginner’s Guide • Who Am I • My Environment • What is a SLP • Creating SLPs • Deleting SLPs • Best Practices • Questions?

  3. Who Am I • NetBackup administrator for the last 5 years • 3+ years with current environment • Began using SLPs in 2009 with NBU 6.5.3

  4. My Environment • Windows Master Server • 8 Windows Media Servers • 900 Hosts • 1700 Backup Policies • 150 SLPs • 15000 jobs a day • 15-25TB of backups a day

  5. What is a SLP • Storage Lifecycle Policy • A plan or map of where backup data will be stored and for how long. • Focuses management on individual images • Very flexible when making multiple copies and using multiple retentions

  6. Creating a SLP • Article: HOWTO34771 • Administrator’s Guide 1, Chapter 14

  7. Creating a SLP

  8. Adding Storage Destinations

  9. How My Data Flows

  10. A Basic SLP

  11. Hierarchical SLP

  12. Give Me More SLP • Why so many SLPs? • Retention • Backup destination • Duplicate destination(s) • Hurts batching and SLP processing takes longer

  13. Removing a SLP • Remove from all backup policies • All active jobs completed – wait or cancel • Cancel any pending duplications • nbstlutil cancel –lifecycle <name> • Delete SLP • May need to wait several minutes after last job completes

  14. Removing a SLP • click on desised SLP • Right-Click and select Delete and confirm

  15. Doing it CLI Style • NBSTL • add/modify • remove • list Example of an add nbstlTEST-PRD-UNX-STD -add -dp 70000 -uf 0,1,1 -residence DSSU_UNX,DD-UNX,TAPE-TEST -pool __NA__,__NA__,TEST-Offsite -source 0,0,0 -managed 2,0,0 -rl 0,4,1

  16. Best Practices • TECH153154 – 7.1and later • NetBackup 7.1 Best Practice Using Storage Lifecycle Policies and Auto Image Replication • TECH75047 – 7.0.1 or earlier • Best practices for configuring NetBackup with Storage Lifecycle Policies

  17. Best Practices • Plan for duplication time • Duplication may take as long as original backup or longer • Duplication requires twice the hardware (Reading and Writing) • NBRB gets hit twice as hard as well

  18. Best Practices • Introduce SLPs into the environment gradually • Don’t switch everything to SLPs at once • Do limit duplications initially • SLP duplications require bandwidth and hardware • You may need to re-evaluate hardware requirements

  19. Best Practices • Be conservative when using storage unit groups with Media Server Load Balancing • Negative impact on NBRB • Every queued job gets evaluated • More servers = slower resource allocations

  20. Best Practices • Be conservative when using storage unit groups with Inline Copy • More load on NBRB • Evaluates possible server and space every evaluation cycle for queued jobs • Monitor closely when adding servers or storage units

  21. Best Practices • Use Duplication Job Priority to give backups priority over duplications • or the inverse, depends on your situation • Or just don’t share resources if possible

  22. Best Practices • Avoid increasing backlog • Oldest files get duplication jobs first • Have to duplicate faster than backups to catch up • “the behinder you get the more you get behind” • Could be over 1 day, 3 days, a week, you decide.

  23. Best Practices • Backlog Questions • How soon should duplications be completed? SLAs? • How will you measure the backlog? • What about downtime? • How will you recover from a backlog?

  24. My Backlog

  25. Tuning Files • The LIFECYCLE_PARAMETERS file • /usr/openv/netbackup/db/config -unix • netbackup\db\config\ -windows

  26. Tuning Files • LIFECYCLE_PARAMETERS Values MIN_GB_SIZE_PER_DUPLICATION_JOB 8 MAX_GB_SIZE_PER_DUPLICATION_JOB 25 MAX_MINUTES_TIL_FORCE_SMALL_DUPLICATION_JOB 30 DUPLICATION_SESSION_INTERVAL_MINUTES 5 IMAGE_EXTENDED_RETRY_PERIOD_IN_HOURS 2 DUPLICATION_GROUP_CRITERIA 1 TAPE_RESOURCE_MULTIPLIER 2

  27. Tuning Files • NBRB.conf • TECH57942 • EMM.conf • TECH137761 • server.conf • HOWTO34665 or HOWTO33625 May need to contact support for help with these

  28. Any questions? scott.holowinski@oneneck.com

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