Key Performance Items to be Monitored for HDS on Storage Navigator

This article provides you an overview of Storage Navigator software that enables you to track and control the performance of the Hitachi Virtual Storage Platform (VSP) storage system.

Hitachi Performance Monitor overview

Hitachi Performance Monitor helps you to track the Virtual Storage Platform and gather detailed usage and output statistics. You may monitor data from the graphics storage system to identify changes in usage rates, workloads, and traffic, analyze variations in disk I / O, and detect peak I / O times. If there is a decrease in storage system performance, Performance Monitor can help you detect the cause of the problem and resolve it. Using the Performance Monitor details, you can configure the Server Priority Manager, Cache Residency Manager, and Virtual Partition Manager operations to manage and fine-tune your storage system performance.

Purchase and install the license key on the Storage Navigator computer to use the Performance Monitor. Array Manager comes with the Performance Monitor license, which is purchased with every array. See the Hitachi Storage Navigator User Guide for information about the license key and installing software.

To display the performance statistics of the parity group and the LUSE volume correctly, you must specify the following:

  • All volumes belonging to the parity group as monitoring targets.
  • All volumes that make up the LUSE volume as monitoring targets.

Performance Monitor tracks your storage system so that you can get statistics about:

  • Resources in your storage system
  • Workloads on disk and ports

Read More: Hitachi Virtual Storage Platform (VSP)

If your system has a problem (for example, if server hosts have delayed response times), Performance Monitor can help you identify the cause of the problem.

The display graph can be configured by setting up the Performance objects and items to be displayed in the field of the Monitor Performance window.

The outline of target objects and monitoring data that can be displayed in graphs is shown as follows:

Monitoring target object Monitoring data
Controller Usage rates of the processor blade (%)
Usage rates of DRR (%)
Cache Usage rates of cache (%)
Write pending rates (%)
Access Path Usage rates of access path between CHA and ESW (%)
Usage rates of access path between DKA and ESW (%)
Usage rates of access path between MP Blade and ESW (%)
Usage rates of access path between cache and ESW (%)
Port Throughput (IOPS)
Data transfer (MB/s)
Response time (ms)
WWN Throughput of WWN (IOPS)
Data transfer of WWN (MB/s)
Response time of WWN (ms)
Throughput of port (IOPS)
Data transfer of port (MB/s)
Response time of port (ms)
Logical device Total throughput (IOPS)
Read throughput (IOPS)
Write throughput (IOPS)
Cache hit (%)
Data transfer (MB/s)
Response time (ms)
Bank transfer (count/sec)
Drive usage rate (%)
Drive access rate (%)
Usage rates of ShadowImage (%)
Parity Group Total throughput (IOPS)
Read throughput (IOPS)
Write throughput (IOPS)
Cache hit (%)
Data transfer (MB/s)
Response time (ms)
Back transfer (count/sec)
Drive usage rate (%)
LUN Total throughput (IOPS)
Read throughput (IOPS)
Write throughput (IOPS)
Cache hit (%)
Data transfer (MB/s)
Response time (ms)
Back transfer (count/sec)
External Storage Data transfer of logical devices (MB/s)
Response time of logical devices (ms)
Data transfer of parity groups (MB/s)
Response time of parity groups (ms)

Read More: Software tools to measure Storage Area Network (SAN) performance

Final Thought:

I hope the above article provides the basic information on monitoring objects and items in the Storage Navigator tool for Hitachi Storage Systems. This will help the beginners in Storage Monitoring Job profiles.