essnettest command

Performs IBM Storage Scale System network test.

Synopsis


essnettest { -N NODE-LIST } [ --prefix  PREFIX ] [ --suffix  SUFFIX ]
           [ --duration  TEST-DURATION ] [ --buffersize  BUFFER-SIZE ] 
           [ --errthld  ERROR-THRESHOLD ] [ --dropthld  DROP-THRESHOLD ] 
           [ --rdma  ] [--syslog] [ -h | --help ]

Availability

Available with IBM Storage Scale System.

Description

The essnettest script helps in running the network workload to test network for proper operations. The nsdperf workload generator is the underlying tool to generate the workload.

Parameters

-N NODE-LIST: Provides a list of nodes to run the network performance test.
--prefix PREFIX: Provides the host name prefix. Use = between --prefix and value if the value starts with -.
--suffix SUFFIX: Provides the host name suffix. Use = between --suffix and value if the value starts with -.
--duration TEST-DURATION: Provides the test run time in seconds. Default test duration is 30 seconds.
--buffersize BUFFER-SIZE: Provides the buffer size in bytes. Default is 4194304 (4 MiB).
--errthld ERROR-THRESHOLD: Provides the packet error threshold in percent.
--dropthld DROP-THRESHOLD: Provides the packet drop threshold in percent.
--rdma: Specifies RDMA test only; skips IP part.
--syslog: Logs the packet error and drop percent to syslog (/var/log/messages). Default no logging to syslog.
-h | --help: Displays usage information about this script and exits.

Exit status

0: Successful completion.
nonzero: A failure has occurred.

Security

You must have root authority to run the essnettest command.

Example

This example shows running the network test on the management server node (EMS) and I/O server nodes.

ESSENV=TEST essnettest -N ems1,ess_x86_64 --suffix=-hs

Location

/opt/ibm/ess/tools/bin