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eSight V300R009C00 Operation Guide 09

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Storage Network Analysis Introduction

Storage Network Analysis Introduction

Definition

The storage network analysis component is a professional monitoring and analysis tool dedicated to SAN/NAS storage network environments.

Functions

The Storage Network Analysis can be used to automatically discover SAN and NAS topologies, monitor SAN and NAS alarms, and monitor storage path performance. The topologies are global or customized. The provided NE topologies, host path graphs, and historical and real-time performance graphs help analyze NEs at different levels.

Viewing the Topology
NOTE:

A maximum of 1000 hosts and 500 storage devices can be displayed in the topology.

You can view the topology to learn the overall network layout, device connectivity, and device operating status.

eSight supports the global view and customized view for different application scenarios.

  • Global view: Displays global physical connections between all NEs.
  • Customized view: Displays service connections between all NEs. Network administrators can select NEs that they want to display on a view, enabling accurate monitoring and efficient operation and maintenance (O&M).

A view consists of NEs and links.

Figure 10-30 SAN Analyzer view

Concept

Description

NE

An NE contains hardware and the software running on the hardware. An NE will be automatically displayed on the physical view once being connected to eSight. You can view alarms and performance indicators of physical NEs.

Link

Physical connections between NEs.

Dashed lines are links that are manually created. When hosts or virtualization servers are directly connected to storage systems, links cannot be automatically discovered and must be manually created.

Viewing a Host Path Graph

During network analysis, you must understand the mapping among the selected host, applications, and storage resources. You can go to the host path graph of the target host from the global view or customized view to implement specific analysis for the host.

The host path graph displays the mapping among the host, application, hard disks, ports, switches, hard disk arrays, storage controllers, storage devices, and LUNs. You can view the historical and real-time performance of NEs and links in a host path graph.

Figure 10-31 Host path graph
Viewing Alarms

You can view alarms on a topology to intuitively analyze and diagnose faults.

You can use either of the following methods to display alarms:

  • Displaying threshold alarms: Threshold alarms of an NE are displayed on a topology view. Alarms of different severities and quantity are displayed in different colors. If you find any performance indicator exceeds the threshold, you can adjust resources, devices, and thresholds in a timely manner.
  • Displaying the alarm list: You can go to the alarm list page from a topology view to view all device alarms. The alarm list will display the name, source, diagnosis information about alarms.
Figure 10-32 Displaying threshold alarms

Viewing Historical and Real-Time Performance

You can view the historical and real-time performance of an NE on a SAN topology or host path graph to intuitively analyze performance and quickly diagnose faults.

Figure 10-33 Displaying historical and real-time performance

Application Restrictions

Only eSight that is equipped with Storage Device Manager and host management component can use the storage network analysis management function.

Key Parameters

None

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Updated: 2019-05-17

Document ID: EDOC1100011877

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