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Foglight for Storage Management Shared 7.3.0 - User 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 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 Appendix: Supported Storage Devices Table

Customizing Helper Strings for Dependency Processing

Zone names are set by the Storage Administrator and typically include the names of devices connected to ports. The dependency processing algorithm processes the zone name strings using various helper strings to identify the possible host names associated with a port. A DNS lookup is performed on the possible names to identify the most likely host FQDN. You can customize the helper stringers for your environment and improve the accuracy of the inferred hosts.

To customize helper strings for dependency processing:
1
On the Storage Environment dashboard, in the Administration tab, click Review Physical Host FQDNs.
2
Click Change Zone Processing Params.
The Edit Parameters for Zone Info Processing dialog box opens.
3
To specify IP addresses to ignore during dependency processing, click Invalid IPs. Click Add, specify an IP address, and click Add.
Some DNS setups always return a default IP address when a DNS lookup of a possible host name fails. If a DNS lookup of a host name returns an IP address listed in the Invalid IP table, the host name is considered invalid for dependency processing purposes.
4
To specify strings that may be included in the zone information, but are known not to be host names, click DNS Exclude Strings. Click Add, specify a string, and click Add.
5
To specify strings used as separators for readability in the zone names, click Split Strings. Click Add, specify a string, and click Add.
6
To specify strings that you want to convert to other strings before performing a host name DNS lookup, click Translation Strings. Click Add, specify a string found in the zone information and the new string to use, and click Add.
7
When you are finished customizing parameters on all tabs, click Save.
Dependency processing begins. Zone information is collected using the changed parameters and host-resolution analysis is performed.

Reviewing Inferred Hosts

You can see a list of inferred hosts on the Infrastructure dashboard. From this dashboard, you can explore hosts and change their host port assignments if necessary. If you are interested in monitoring and collecting detailed data about an inferred host, you can set up an agent to monitor the host. This action moves the host from the inferred list to the appropriate monitored host list.

For more information about the Infrastructure dashboard, see the Managing the Infrastructure Cartridge section of the Foglight for Storage Management online help.

To review inferred hosts:
1
On the navigation panel, under Dashboards, click Infrastructure.
2
In the Select a Service list, select All Hosts.
3
In the Monitoring tab, click the Inferred tile.

4
In the quick view, click a host in the Inferred list and then click Explore.
5
Click the SAN Topology tab.
The SAN Topology tab displays the connections to the LUNs identified through dependency processing.
6
Click a Cloud icon to show the connections through a port in a Details window.
An orange line connecting a host to a port indicates that the host is an inferred host.
7
If the assigned host is incorrect, click the Host Port icon and select the desired action, such as Assign to Different Host or Remove Link to Host.
8
Close the Details window.
9
If you want to set up an agent to monitor this host, click the Monitor tab.
 
* 
NOTE: If your user credentials do not include the role Administrator, you need to ask someone with this role to create an agent to monitor the host.
10
Click Configure Host Monitoring.
11
In the Add Monitored Host wizard, follow the online instructions to add the host.
For help with the wizard, see “Adding a Monitored Host” in the Managing the Infrastructure Cartridge section of the Foglight for Storage Management online help.

Modifying Data Collection Schedules

Generally speaking, the default data collection schedules are suitable for most environments. If you notice that some agents take an extended time to collect topology data or performance data, and modifying your monitoring environment is not a suitable solution, you may want to change the data collection schedules for the affected agents. You can find the current duration of collections in the Edit Agent Properties dialog box.

Understanding Data Collection Types and Schedules

Storage Collector agents perform two types of collections: topology collections and performance collections.

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