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Performance Monitoring Guide

OceanStor Dorado V3 Series V300R002

This document describes performance monitoring of storage systems, including the monitoring method, indicator planning, configuration monitoring, and problem diagnosis.
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Performance issues are connected with the slow or delayed delivery of service processes or application response.

Common performance problems are as follows:

  • The I/O latency is long. Users experience a longer service response time.
  • IOPS and bandwidth cannot meet service requirements.
  • Performance fluctuates greatly.

Figure 4-1 shows a typical storage network that consists of application servers, switches, and a storage system.

Figure 4-1 Schematic diagram of a storage network

From the perspective of networking, the service I/O delivery process can be roughly divided into the logical modules shown in Figure 4-2.

Figure 4-2 Service I/O processing flowchart

Performance problem diagnosis can be divided into two steps:

  • Determine the I/O path layer where a performance problem resides.
  • Determine the root cause of the performance problem.
Updated: 2019-07-17

Document ID: EDOC1100049152

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