Nytro Predictor Software Tool Overview
The LSI® Nytro Predictor™ software tool determines whether the LSI Nytro™ XD Application Acceleration Storage Solution and LSI Nytro MegaRAID® Application Acceleration Card for DAS caching solutions can accelerate your applications. The caching technology depends on the applications creating hot data of the storage activity. Hot data occur when data is being accessed frequently. By retaining a copy of this data on Flash, you can write or retrieve this data much faster than the HDD-based storage.
To confirm the presence of hot spots, traces of storage activity are recorded on your production servers. These trace files are then analyzed using the Nytro Predictor software tool. Using the trace data, the tool estimates the performance improvement that might be possible using the Nytro XD or Nytro MegaRAID acceleration solutions with a similar workload.
The Nytro Profiler CLI script creates trace files using the proven industry performance software, Xperf on Windows® and blktrace on Linux®. This software has minimal performance (see Best Practices) impact on your production servers, and samples might be taken for several hours. No customer data is ever recorded, only the frequency and locations of the application storage accesses are captured. These trace files might become quite large. The Nytro Predictor software tool is Java-based, and it analyzes the traces on a non-production server to make sure that there is no additional load on the production servers. The LSI® Nytro Predictor™ Software Tool User Guide provides information about the installer package and other installation related information. The Nytro Predictor software tool runs as a standalone tool inside the host system (OS).
Figure 2. Nytro Predictor Software Tool Flowchart
NOTE Do not modify the xxx_user.ini file.
xxx in xxx_user.ini can be either NytroXD or NytroMR ini file.
DB15-000969-03 - December 2012 |
Copyright© 2012 by LSI Corporation. All rights reserved. |