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Foglight for Storage Management Shared 4.8 - User and Reference Guide

Getting Started Configuring Agents to Monitor Storage Devices
Brocade SAN Switches Cisco SAN Switches Dell Compellent Arrays Dell EqualLogic PS Series Array Groups EMC CLARiiON CX Series Arrays (CLI) EMC CLARiiON, VNX, or VMAX Storage Arrays (SMI-S) EMC Isilon EMC VPLEX Hitachi Data Systems AMS, USP, and VSP HP EVA Storage Arrays HP 3PAR Arrays NetApp Filers Collection Target Support Matrix Configuration Procedures
Managing Agents Using Foglight for Storage Management 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

Investigating Storage Devices

To find out more about the performance of a storage device and its components, you use the Storage Explorer dashboards.

This section covers the following topics:

•
Introducing the Storage Explorer
•
Exploring a Fabric
•
Exploring a Switch
•
Exploring a Cisco VSAN
•
Exploring a Filer
•
Exploring a Storage Array

Introducing the Storage Explorer

The Storage Explorer enables you to quickly find and examine any storage device in your storage environment. The Storage Explorer has a Topology tree—displayed in the navigation panel below the list of Dashboards—that contains branches for Fabrics, Filers, and Storage Arrays. The fabrics in the Fabrics branch can be expanded to show FC switches and VSANs. When you select a device from the tree, the Storage Explorer opens a dashboard displaying details about that device.

This walkthrough describes how to open the Storage Explorer and select a storage device. If you select a top-level device type node, such as Fabrics, the Storage Environment quick view is displayed. For more information about the quick view, see Summary and Resource Information for each Collected Target:.

To use the Storage Explorer:
1
On the navigation panel, under Dashboards, click Storage & SAN > Storage Explorer.
The Topology tree opens below the Dashboards area, containing a list of all monitored storage devices and their status.
2
On the navigation panel, under Topology, select a storage device. Details about the device and its components are displayed in a Storage Explorer dashboard.
All Storage Explorer dashboards have a similar organization.

 
Table 20. Storage Explorer dashboards contain the following common screen elements:
Screen Element
Description
Time Range

Displays and controls the period of time represented in the dashboard. The default is the last four hours. For more information, see “Time Range” in the online help.

Alarm Count

Displays counts of all the alarms at each severity level that are still active (not cleared) at the end of the displayed time range. Unlike the Alarm Summary view, the Alarm Count includes alarms for the device and all its child components. Click an alarm count to display the alarms at that severity level.

Summary Tab Views

When the Summary tab is selected:

•
The top view displays the same Related Inventory view and charts that are displayed for this device in the Storage Environment quick view.
•
The Summary and Resource Information view displays physical configuration details for the selected device.
•
The Alarm Summary displays device-level alarms (if any).
Component Tabs

Contains a tab for each type of component used by the selected device, such as ports, drives, and disks.

When a component tab is selected:

•
The top view displays key performance and/or capacity metrics for the components used by this device.
•
A Details view lists the components by name and displays physical configuration details.
•
The Alarm Summary displays component-level alarms (if any).
•
Other component-specific views may be present.
FAQts Tab

Contains questions appropriate for the selected device type. For information on how to use a FAQts tab, see Asking Questions About the Monitored Storage Environment.

Alarm Summary

Displays alarms for the selected device (on the Summary tab) or the type of component (on the Component tabs).

For information about each type of Storage Explorer dashboard, see the following topics:
•
Exploring a Fabric
•
Exploring a Switch
•
Exploring a Cisco VSAN
•
Exploring a Storage Array
•
Exploring a Filer

Exploring a Fabric

The Storage Explorer’s Fabric dashboard contains information about the selected fabric and its switches as well as all ports used by the switches in the fabric. The data displayed reflects values for the selected time range. This walkthrough describes the contents of each of the tabs and points you to where you can drill down for more details.

To explore a fabric:
1
On the navigation panel, under Dashboards, click Storage & SAN > Storage Explorer.
2
On the navigation panel, under Topology, expand Fabrics and select a fabric.
The Fabric dashboard opens with details for the selected fabric.
 
* 
TIP: You can also open this dashboard from the Storage Environment dashboard by selecting a fabric and clicking View in Explorer.
3
If the Alarm Count displays alarms, you may want to assess the alarms before continuing with this walkthrough. Click a status count to open a list of device and component alarms. For more information, see Assessing Storage Alarms.
4
In the Summary tab, review performance in terms of key metrics.
The Summary tab contains the same Related Inventory view and Resource Utilization charts as the Fabric Summary quick view. In addition, the tab includes the following views:
•
Summary and Resource Information. Displays physical details about the fabric.
•
FC Switch Detail. For each switch, displays the switch status, type of switch (physical or logical), and current value for Data Rate, followed by details about the ISL ports and N ports belonging to the switch. Ports details include the number of ports by alarm status and current values for Link Error Rate and Non-Link Error Rate. Click a  Sparkline to plot metric values over the time period.
•
Alarm Summary. Displays alarms on this fabric.
5
Click the ISL Ports tab.
•
Highest charts. The charts display the top three ISL ports in the fabric with the highest average Data Rate, Link Error Rate, and Non-Link Error Rate, respectively. The tables show the average and current values for the ports.
•
Topology Table (Inter-Switch Connections). For each switch, identifies all ISL port connections with other switches in the fabric.
•
Port Details. For each switch-plus-port combination, displays the name and type of switch (physical or logical) and the port name, status, and physical state. The metrics represent current values for Rcvd Utilization, Xmit Utilization, Link Error Rate, Non-Link Error Rate, and Link Speed. Click a Sparkline to plot metric values over the time period.
 
* 
NOTE: When the selected fabric is a Cisco physical fabric with VSANs, this table includes a VSAN column that identifies the VSANs to which each ISL port is assigned.
You can add the following metrics to the table by clicking the Customizer icon:
Frame Rate, Data Receive Rate, Data Rate, and Data Send Rate.
•
Alarm Summary. Displays alarms on ISL ports.
6
Click the N Ports tab.
•
Highest charts. The charts display the top three N ports in the fabric with the highest average Rcvd Utilization, Xmit Utilization, Link Error Rate, and Non-Link Error Rate, respectively. The tables show the average and current values for the ports.
 
* 
NOTE: When the selected fabric is a Cisco physical fabric with VSANs, the tables include a VSAN column that identifies the VSAN to which an N port is assigned.
•
Port Details. For each switch-plus-port combination, displays the name and type of switch and the port name, status, and physical state. The metrics represent current values for Rcvd Utilization, Xmit Utilization, Link Error Rate, Non-Link Error Rate, and Link Speed. Click a Sparkline to plot metric values over the time period.
 
* 
NOTE: When the selected fabric is a Cisco physical fabric with VSANs, this table includes a VSAN column that identifies the VSAN to which an N port is assigned.
You can add the following metrics to the table by clicking the Customizer icon:
Frame Rate, Data Receive Rate, Data Rate, and Data Send Rate.
•
Alarm Summary. Displays alarms on N ports.
7
To investigate further, click the name of a component on any tab:
•
Click a switch name. See Exploring a Switch.
•
Click a port name. See Investigating an FC Switch Port.
•
For Cisco fabrics with VSANs, click the text in the VSAN column and then select a VSAN. See Exploring a Cisco VSAN.
•
Click an alarm. See Assessing Storage Alarms.
8
To change the fabric name to a more user-friendly name, click the fabric name in the Summary and Resource Information panel.
The Change Fabric Name dialog appears, allowing you to enter a new name.

Exploring a Switch

The Storage Explorer’s FC Switch dashboard contains information about the selected Fibre Channel switch and all ports used by the switch. The data displayed reflects metric values for the selected time range. This walkthrough describes the contents of each of the tabs and points you to where you can drill down for more details.

To explore a switch:
1
On the navigation panel, under Dashboards, click Storage & SAN > Storage Explorer.
2
On the navigation panel, under Topology, expand Fabrics, expand the target fabric, and select a switch.
The FC Switch dashboard opens with details for the selected switch.
 
* 
TIP: You can also open this dashboard from the Storage Environment dashboard by selecting a switch and clicking View in Explorer.
3
If the Alarm Count displays alarms, you may want to assess the alarms before continuing with this walkthrough. Click a status count to open a list of device and component alarms. For more information, see Assessing Storage Alarms.
4
In the Summary tab, review performance in terms of key metrics.
The Summary tab contains the same Related Inventory view and Resource Utilization charts as the FC Switch Summary quick view. In addition, the tab includes the following views:
•
Summary and Resource Information. Displays physical details about the switch.
•
Topology Table (Inter-Switch Connections). Brocade logical switches only. For each switch, identifies all ISL port connections with other switches in the fabric.
•
Alarm Summary. Displays alarms on the switch.
5
Click the ISL Ports tab, if available.
 
* 
NOTE: This tab is hidden when the switch is a Brocade logical switch that uses only logical ISL ports for inter-switch connections. No metrics are available for logical ISL ports. The Topology Table (Inter-Switch Connections) table appears on the Summary tab instead.
Displays the same information as the ISL Ports tab on the Fabric dashboard, but the data reflects only the ISL ports used by the selected switch.
6
Click the N Ports tab.
Displays the same information as the N Ports tab on the Fabric dashboard, but the data reflects only the N ports used by the selected switch.
7
To investigate further, click the name of a component on any tab:
•
Click a port name. See Investigating an FC Switch Port.
•
For Cisco fabrics with VSANs, click the text in the VSAN column and then select a VSAN. See Exploring a Cisco VSAN.
•
Click an alarm. See Assessing Storage Alarms.
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