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Foglight for Storage Management Shared 4.6 - User and Reference Guide

Getting Started Monitoring Storage Performance Investigating Storage Devices Investigating Storage Components Investigating VPLEX Storage Troubleshooting Storage Performance Managing Data Collection, Rules, and Alarms Understanding Metrics Online-Only Topics

Getting Started

This section introduces you to Foglight for Storage Management, and tells you how to verify that Foglight for Storage Management is capturing storage collection data for all the devices you are interested in monitoring.

 
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NOTE: For information about installing Foglight for Storage Management, configuring Storage Collector agents, and managing agents, see the Foglight for Storage Management Installation Guide.

This section covers the following topics:

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Introducing Foglight for Storage Management
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Navigating Foglight for Storage Management
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Verifying StorageCollector/Generic SMIS Storage Agents are Collecting Storage Data
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Understanding Metric Data in Charts and Tables
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Modifying and Extending Data Collection
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Next Steps

Introducing Foglight for Storage Management

Virtual infrastructures add layers of abstraction that obscure the relationship between physical storage and virtual machines. Foglight for Storage Management supports VMWare and Hyper-V virtual environments. It helps you look beyond logical datastores and volumes to see how physical storage components (switches, logical unit numbers (LUNs), arrays, and filers) are impacting virtual machines (VMs).

The key concepts for Foglight for Storage Management are “relationship” and “context.” Rather than simply viewing repeated performance metrics, Foglight for Storage Management incorporates the data into an end-to-end view of your virtual storage infrastructure, showing the relationship of the storage and storage area network (SAN) performance to VM performance. You can also investigate performance events in the proper context, viewing the status of the entire topology at the time the performance issues occurred.

Performance Monitoring

Monitoring the performance of your storage infrastructure is critical to maximizing VM performance. Foglight for Storage Management allows you to track:

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Insufficient bandwidth and throughput of SAN switch ports, filers, and storage arrays.
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Over (or under) utilized datastores CSVs, and logical disks.
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I/O bottlenecks for NASVolumes and LUNs, along with the pool providing the physical disk storage for the LUNs and NASVolumes.
Figure 1. Performance Monitoring

­Foglight for Storage Management captures performance metrics from components of your storage infrastructure (SAN switches, LUNs, storage arrays, and filers), evaluates the data based on preconfigured performance and event rules, then presents this data via a detailed graphical interface. With architectural diagrams, graphs, alerts, and drill-down screens, Foglight for Storage Management helps you quickly identify problems in the virtual environment or the physical storage. For more information, see Monitoring Your Storage Environment.

Capacity Monitoring

Foglight for Storage Management aids the process of identifying and resolving storage capacity issues. The Foglight for Storage Management virtualization cartridges alert you to datastores and logical volumes in danger of running out of storage. The storage component shows you how the physical storage supporting your virtual infrastructure is configured. The detailed graphical interface of Foglight for Storage Management lets you see storage capacity allocations for arrays and filers, and receive alerts when free disk capacity and free pool capacity fall below thresholds. For more information, see Monitoring Storage Arrays, Monitoring Filers, and Monitoring Storage Capacity.

Figure 2. Capacity Monitoring

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