This 2-day course covers EVA performance data collection, interpretation and analysis, including a hands-on case study. The course describes essential performance rules, terminology, and rules of thumb that should be used when assessing EVA performance. It covers the tools and processes used to collect, format, and analyze performance data.
The course exercises do not require use of the HP Virtual Lab or local equipment.
EVA4400, EVA6400 and EVA8400
performance improvements
Firmware aspects affecting performance
Rules of EVA performance for random I/O
Sizing for random workloads — with margin
Microsoft Exchange formula for host IOPs
Rules of EVA performance for sequential I/O
Safe IOPs calculator for production disk
group
Safe IOPs calculator — Microsoft version
Active-active considerations
Command View EVA preferred path settings
MPIO host settings
Adaptive Load Balance
Moving ownership of the managing controller
Performance Data Collection and Formatting
Summary of data collection and formatting
tools
EVAPerf utility
EVAPerf tool components
EVAPerf installation
EVAPerf software components
EVAPerf and friendly names
EVA passwords
EVAPerf CLI counters
EVAPerf qualifiers and array coverage
EVAPerf simplified categories
EVAPerf — Perfmon objects
Viewing logged data
Loading saved data into other tools
EVAPerf commands
EVAPerf command modifiers
Sample formatting options
Modifiers useful for capturing data to a file
Modifiers useful for filtering data
Collecting EVAPerf command line data
Recommended command line options
Examples of 1-hour and 24-hour data
collection
EVAPerf all command output
Formatting EVAperf data
TLViz Formatter description
Using the TLViz Formatter
TLViz Formatter output files
EVAPerf commands and TLViz output files
TLViz Formatter map files
EVADATA.MDB queries
Opening and viewing CSV files with Excel
Another data manipulation tool — csvpng
Performance Data Analysis
Analysis tools
TLViz description
Using TLViz for data viewing and
manipulation
Downloading TLViz
Manipulating the TLViz display
Viewing multiple items
Removing records
Adding new items to the view
Toggling moving averages
Showing raw data
Zooming the display
Stacking items
Using editing options
Correlating data
Analyzing EVA performance
Places to start when performing analysis
Example using TLViz vdg statistics output
Adding a new item for total backend requests
Charting total backend requests versus read
miss latencies
Common issues that affect EVAs
Example — FATA misuse
Fibre Channel and FATA total requests
Comparing Fibre Channel and FATA read
miss latencies
Using the Safe IOPs calculator
Example — Exceeding Safe IOPs
Using the Access database for analysis
Using TLViz for analysis
Additional TLViz rules and examples
Host port statistics output in TLViz
Host port statistics — Balanced workload
Port status output in TLViz
Array status output in TLViz
Physical disk group output in TLViz
Physical disk group requests and MB/s
Data replication tunnel output in TLViz
Array controller status output in TLViz
Controller status command — % CPU for both
controllers
% CPU for both controllers — Normal
overhead
% CPU for both controllers — Snap activity
#Note#
VMware courses delivered by Hewlett-Packard Australia. HP is a global VMware authorized training center (VATC), using VMware-certified instructors and course materials.