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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

Asking Questions About the Monitored Storage Environment

Another way to find out information about your storage environment is to ask questions. The Insights tab contains the Analytics view to show frequently-asked questions about storage environments. Answers are displayed in the form of tables and graphs. You can select questions that apply to all storage resources or to a specific type of storage resource.

On the Storage Environment dashboard, click the Insights tab, and then click Analytics.

Assessing Connectivity and I/O Performance

You can also identify connectivity and port performance problems that occur during I/O requests by assessing storage from the perspective of the virtualization environment. The VMware and Hyper-V Explorers offer an end-to-end look at all the entities that make up your virtual infrastructure, including clusters, hosts, virtualization storage, and virtual machines.

This section covers the following topics:

Introducing the Virtualization Dashboards

This workflow introduces you to the version of the Virtualization dashboards available in Foglight for Storage Management. For detailed information, see the VMware Monitoring in Foglight for Storage Management User and Reference Guide or Hyper-V Monitoring in Foglight for Storage Management User and Reference Guide.










The following workflow walks you through opening a virtualization dashboard and selecting an entity to explore.

On the navigation panel, under Dashboards, click either VMware > VMware Explorer or Hyper-V > Hyper-V Explorer.
TIP: If you do not see the menu, ask your Foglight for Storage Management Administrator to add the role VMware Administrator or Hyper-V Administrator to your user account.
Under Infrastructure, on the Topology tab, select the desired entity.

Summary of Icons Used in Topology Diagrams

In topology diagrams, the icons represent entities in your monitored virtual infrastructure and storage infrastructure, as described in the following table. Each icon incorporates a small status icon to show the status of the entity.

A physical server in your network.

A physical server hosting the hypervisor-based architecture and virtual machines controlling and managing resources for the virtual machines.

A virtual machine running on a host or server.

A datastore or CSV (Cluster Shared Volume) or logical disk is a logical storage structure used to provide virtual machine disks and files.

A disk extent is all or part of a host disk that can provide the physical storage for a datastore, CSV or logical disk. The disk extent can be on a local DAS device, or it can be mapped to a LUN on a storage array or filer in the SAN.

Hides port-level complexity in a topology diagram. Click the icon to view ports and their connected devices in a Detail window.

FC ports connect to other FC ports on switches, physical hosts, storage arrays, or filers using fibre-channel network technology in the SAN.

IP ports provide access to the IP network for storage devices using iSCSI or other protocols.

A controller manages the ports used by a storage array or filer.

A LUN (logical unit number) represents a logical SAN block storage device on an array or filer that can be exposed for mapping to a server.

A NASVolume is a volume whose physical storage is on a filer or unified storage supplier. It can be mounted by an ESX host to provide the physical storage for a datastore using NFS.

A storage server that works together with other members or nodes in a clustered storage architecture. The array cluster distributes the workloads among the members of the cluster.

In Netapp cluster mode, users access storage by SVMs.

Connectivity to SVMs is provided through logical interfaces (LIFs). A LIF has an IP address or a World Wide Port Name, used by a client or host to connect to an SVM.

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