1. 11 Capacity Planning Methodologies / Reporting for Storage Space and SAN Port Usage Bob Davis EMC Technical Consultant

2. 22 I need to do what … how can we do that?

3. 33 Agenda Truly understand all theequirements  Truly understand all the requirements  Performance view  Planning for the growth - new tools  Do you need to be “IT Green” (save power)

4. 44 Storage and SAN Growth Understand your growth requirements –GBs –Load (MB) –New application type (VmWare, DB, DW, etc.) –Is everything really OK today Planning and Provisioning - Trend  Design  Plan  Meet service-level agreements Monitoring and Reporting  Monitor storage to improve asset usage Device Management  Configure and optimize storage Planning and Provisioning Monitoring and Reporting Device Management

5. 55  Storage Capacity Management Guidelines: –Definition of reserve capacity –Expected utilization criteria –Acquisition thresholds –Hardware Technical and Performance Requirements Guide

6. 66 Basic Enterprise Storage Assessment Reporting recommendations:  Top systems by total space in use  Top volumes by percentage used  Top 10 most accessed systems  Top 10 most modified systems  Top 10 systems with new storage creation  Bottom 10 most accessed systems  Bottom 10 most modified systems  Bottom 10 systems with new storage creation  Top 10 systems with large duplicate files Advanced Enterprise Storage Assessment Report recommendations:  Database-space usage  Database-table usage  Database-usage detail  Quick View report on file types  Files not backed up  Mail-server message and attachment summary  Mail-server storage summary  Paths trend  Space usage by file type  Storage-activity trend

7. 77 Continue to Analyze  Identify potential primary storage- capacity issues  Understand what applications and files are most affecting your environment  Validate and track the power of your archive strategy

8. 88

9. 99 Storage and SAN Growth  Differentiators: – Cost – Performance – Energy Efficiency – Recoverability Local Remote  Security  Encryption  VmWare  Technical Options: – RAID Type – Drive Type – Replication – Port Speed Best Practice: Use different physical drives for different tiers

10. 10 Before you start - Analyze Performance and Health  Performance monitoring –Graphical/tabular performance views and thresholds –Historical-trend analysis (available through Performance Manager) –Data can be exported to.csv file  Consolidated Alerts View for all devices –Policy-based –Alerts for performance, errors, availability, health  Display device health for all elements –HBAs, switches, storage arrays

11. 11 We need to talk about this in depth Heart Beat

12. 12 Automated Report

13. 13 Understand Bottlenecks – Today and Why

14. 14 Understand the End-to-End Topology –Servers –HBAs –SAN devices –Ports / Speed –Storage arrays –Data Layout (why it is this way) –Application

15. 15 Configuring Too Few Components Causes Growth Problems Oops! Front-End (Hosts) Cache & Matrix Back-End (DAs) Disks

16. 16 Uneven Utilization Can Cause Growth Pain Ouch! Oof! Zoicks! Owie! Argh!

17. 17 Celerra NSSymmetrix DMX-4 Symmetrix Priority Controls Virtual LUN Technology Dynamic Cache Partitioning CLARiiON CX3 Navi QoS Manager Virtual LUN Technology Virtual Provisioning Symmetrix Optimizer Virtual Provisioning (Mid 2008) Automated Volume Management Celerra Virtual Provisioning Celerra FileMover Software Based Tiering Capabilities Fibre Channel and SATA Intermix

18. 18 Need to be Green? (i.e. do I have power and PDU space) 94% less energy 87% less energy 73% less energy 50% less energy 32% less energy 73 GB 15K FC 146 GB 15K FC 300 GB 10K FC 500 GB 7.2K FC 787 kWh/yr Per TB 1,434 kWh/yr Per TB 3,048 kWh/yr Per TB 6,096 kWh/yr Per TB 1 TB 7.2K SATA 393 kWh/yr per TB 73 GB Flash Drive 4127 kWh/yr per TB PerformanceCapacity Power/TB 30x IO/s jump Power / GB – Energy To Store 1TB of Information* * Including data center & array infrastructure

19. 19 Summary - Storage  Basic rules for growth –Configure enough resources –Utilize resources evenly –Simple data layouts are better  Best practices for Tiering –Different tiers should use different physical disks, share DAs –Tiered systems should use Dynamic Cache Partitioning (DCP)  Selecting the right drive and protection type –What to place on Flash Drives  New Features that affect growth –Working with Virtual Provisioning –New prefetch for Open Systems

20. 20 Summary - SAN Design for 70% of measured maximum I/O per second or MB/sec per storage port:  The number of I/Os is finite, even at a 100% read hit – 4 KB I/Os: 1883 IO/sec, 7.5 MB/sec – 8 KB I/Os: 1626 IO/sec, 13.0 MB/sec – 32 KB I/Os: 1428 IO/sec, 45.6 MB/sec – Overloading the ports results in response time degradation  Determining the ISL –Routing –Trunking –Bandwidth utilization (<50 percent of its actual bandwidth potential) –Redundancy requirements  Determining the Port Sparing  Tools - EMC Work Load Analyzer, Navisphere Analyzer, ControlCenter, VisualSAN/SRM, and Native switch managers.