EMC Unity NFS Test

By continuously monitoring the NFS operations on every storage processor, you can easily identify that storage processor on which NFS is most ineffective/problematic. This is where, the UnityNFSTest test helps. This test monitors the NFS reads and writes performed on each storage processor in the target storage system and reports the following:

  • How well the I/O operations were performed using the NFS protocol, and whether any delays were noticed;
  • The total amount of data transacted when performing NFS reads and writes

These statistics will not only enable administrators to promptly detect current or probable latencies in I/O operations when using NFS, but will also help them figure out which I/O activity was most latent - i.e., whether reading or writing - and on which storage processor.

Target of the test : An EMC Unity Storage System

Agent deploying the test : A remote agent

Outputs of the test : One set of results for each Storage Processor of 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 storage system for which this test is to be configured.

UniSphere CLI Path

The eG agent uses the command-line utility, UEMCli.exe, which is part of the UniSphere Management Suite, to communicate with and monitor the storage device. To enable the eG agent to invoke the CLI, configure the full path to the CLI here.

Username and Password

Provide the credentials of a user possessing 'monitor' role to access the storage system in the Username and Password text boxes.

Confirm Password

Confirm the Password by retyping it in the Confirm Password text box.

Timeout

Specify the duration (in seconds) beyond which this test should time out in the Timeout text box. The default is 300 seconds.

Detailed Diagnosis

To make diagnosis more efficient and accurate, the eG Enterprise suite embeds an optional detailed diagnostic capability. With this capability, the eG agents can be configured to run detailed, more elaborate tests as and when specific problems are detected. To enable the detailed diagnosis capability of this test for a particular server, choose the On option. To disable the capability, click on the Off option.

The option to selectively enable/disable the detailed diagnosis capability will be available only if the following conditions are fulfilled:

  • The eG manager license should allow the detailed diagnosis capability
  • Both the normal and abnormal frequencies configured for the detailed diagnosis measures should not be 0.
Measurements made by the test
Measurement Description Measurement Unit Interpretation

Peak read bandwidth

Indicates the maximum amount of data read through NFS protocol from this storage processor per second.

MB/sec

The detailed diagnosis of this measure lists the time, name of the storage processor and read bandwidth of the storage processor.

Average read bandwidth

Indicates the average amount of data read through NFS protocol from this storage processor per second.

MB/sec

 

Peak write bandwidth

Indicates the maximum amount of data written using NFS protocol to this storage processor per second.

MB/sec

The detailed diagnosis of this measure lists the time, name of the storage processor and write bandwidth of the storage processor.

Average write bandwidth

Indicates the average amount of data written using NFS protocol to this storage processor per second.

MB/sec

 

Peak read IOPS

Indicates the maximum number of read operations performed using NFS protocol on this storage processor per second.

IOPS

The detailed diagnosis of this measure lists the time, name of the storage processor and read IOPS of the storage processor.

Average read IOPS

Indicates the average number of read operations performed using NFS protocol on this storage processor per second.

IOPS

 

Peak write IOPS

Indicates the maximum number of write operations performed using NFS protocol on this storage processor per second.

IOPS

The detailed diagnosis of this measure lists the time, name of the storage processor and write IOPS of the storage processor.

Average write IOPS

Indicates the average number of write operations performed using NFS protocol on this storage processor per second.

IOPS

Compare the value of this measure across the storage processors to figure out the storage processor that is performing the maximum write operations.

Peak total IOPS

Indicates the total number of I/O operations performed using NFS protocol on this storage processor per second.

IOPS

The detailed diagnosis of this measure lists the VNX time, name of the storage processor and total IOPS of the storage processor.

Average total IOPS

Indicates the average number of I/O operations performed using NFS protocol on this storage processor per second.

IOPS