Cluster Filesystem Statistics Test

The EMC Isilon storage system is a fully distributed storage system with the ability to manage your entire environment under an intelligent light-weight file system. The file system spans across all nodes in the cluster, and protects data by distributing it across all nodes. This way, the load on the cluster is distributed and managed by the file system. If any load-balancing irregularity on the file system is not addressed in time, then, this will make the data protection questionable and adversely impact the performance of the entire storage system. To avoid such eventualities, the workload on the file system should be continuously monitored. This can be easily done using the Cluster Filesystem Statistics test.

This test helps administrators to find out the data reception/transmission rates on the file system, and alerts them to take remedial actions immediately, if any irregularities are detected.

Target of the test : An EMC Isilon Storage System

Agent deploying the test : A remote agent

Outputs of the test : One set of results for the target storage system being monitored.

Configurable parameters for the test
Parameter Description

Test Period

How often should the test be executed.

Host

The IP address of the host for which this test is to be configured.

Port

The port at which the host listens. By default, this will be NULL.

Timeout

Specify the time duration (in seconds) beyond which this test should time out in the Timeout text box. The default is 10 seconds.

Use SUDO

By default, this parameter is set to No. This indicates that, by default, the eG agent will not require any special permissions to execute the commands. However, in some highly secure environments, this command cannot be executed directly as the eG agent install user is different from the root user who has the privileges to run all commands on the target storage system. In such cases, create a sudo user using the steps discussed in the Pre-requisites for Monitoring the EMC Isilon Storage System. Credentials of such a user should be specified in the Username and Password text boxes in the COMPONENTS page.

Set the Use Sudo parameter to Yes. This will enable the eG agent install user to execute the commands.

Measurements made by the test
Measurement Description Measurement Unit Interpretation

Data received

Indicates the rate at which the data was received on the file system.

MB/sec

These measures are the indicators of how well the file system handles the load on the storage cluster.

 

Data transmitted

Indicates the rate at which the data was transmitted by the file system.

MB/sec

Total data

Indicates the rate at which the data was received/ transmitted by the file system.

MB/sec