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Sun Datacenter InfiniBand Switch 36 Product Notes for Firmware Version 2.2

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Updated: October 2019
 
 

autodisable Command

The information in this section replaces sections in the Sun Datacenter InfiniBand Switch 36 Administration Guide for Firmware Version 2.1 and the Sun Datacenter InfiniBand Switch 36 Command Reference for Firmware Version 2.1.

Each connector has an autodisable mode for each supported cause that is either on or off. If the mode is on for a specific connector and cause then an automatic disable action will persistently set the associated link state to disabled whenever the situation defined by cause occurs.

Setting the autodisable mode to off will prevent any subsequent autodisable operations for the relevant connector and cause, but will not impact the current link state.

Syntax

Subcommand Syntax
Descriptions
autodisable add connector cause
Turn auto-disabled mode on for the specified connector and cause.
autodisable all
Turn auto-disable mode on for all connectors, all causes.
autodisable del connector cause
Turn auto-disabled mode off for the specified connector and cause.
autodisable list
List connectors which have auto-disable mode turned on along with the specified cause.
autodisable none
Turn auto-disable mode off for all connectors, all causes.

where:

  • Connector is the name of the connector (0A to 17A and 0B to 17B).

  • Cause is the reason to disable the connector:

    H – The error rate is higher than what the InfiniBand specification permits.

    L – The link speed or width is less than optimal (Less than 4x QDR as long as the remote port supports 4x QDR ).

Description

This hardware command creates an internal list of connectors that are to be automatically disabled, should the links through the connectors exhibit sub-standard performance. The autodisable list has two parts; one for connectors that experience high error rates on their links, the other for connectors that experience suboptimal link speed and width. A connector can be assigned to both parts of the list.

The H cause is configured for a high error rate such as the following:

  • Symbol error count higher than allowed by the IB specification on the switch connector.

  • Symbol error count higher than allowed by the IB specification on the remote HCA port (from firmware version 2.2.4).