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Advanced O&M Command Reference

OceanStor 2800 V3 V300R006

This document is applicable to OceanStor 2800 V3. Based on the CLI, this document describes how to use various commands classified by functionsand how to set the CLI and manage the storage system through these commands. The document that you browse online matches the latest C version of the product. Click Download to download documents of other C versions.
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change port fc

change port fc

Function

The change port fc command is used to modify the properties of a specific Fibre Channel port.

Format

change port fc fc_port_id=? { speed=? | mode=? | flogin_delay_times=? | role=? | fast_write_enable=? | mor_enable=? } *

Parameters

Parameter

Description

Value

fc_port_id=?

ID of a port.

To obtain the value, run "show port general".

speed=?

Updated port rate.

The value can be "auto_adapt", "2Gbps", "4Gbps", "8Gbps", "16Gbps" or "32Gbps", where:

  • "auto_adapt": The autosensing mode is adopted.
  • "2Gbps": The port rate is 2 Gbit/s.
  • "4Gbps": The port rate is 4 Gbit/s.
  • "8Gbps": The port rate is 8 Gbit/s.
  • "16Gbps": The port rate is 16 Gbit/s.
  • "32Gbps": The port rate is 32 Gbit/s.

mode=?

Fibre Channel port mode.

The value can be "FC-AL", "point-to-point" or "auto_adapt", where:

  • "FC-AL": indicates the arbitrated loop mode.
  • "point-to-point": indicates the point-to-point mode.
  • "auto_adapt": The autosensing mode is adopted.

flogin_delay_times=?

Delay time that the system waits before sending the FLOGIN command. Set a proper delay time based on a specific HBA type.

NOTE:

FLOGIN, an interactive command in the Fibre Channel protocol, is used to negotiate parameters related to Fibre Channel links. After a storage system and a host interconnect by using an optical fiber, both parties need to send the FLOGIN command to determine the parameters supported by the peer party.

The value can be "500" or "0", expressed in μs, where:

  • "500": applicable to the scenario where the server connected to the storage system is equipped with a Brocade 825 HBA.
  • "0": applicable to the scenario where the server connected to the storage system is equipped with other types of HBAs.

role=?

Fibre Channel port role.

The value can be "ini", "tgt", or "ini_and_tgt", where:

  • "ini": initiator (The 8 Gbit/s FC I/O module cannot support this function.)
  • "tgt": target.
  • "ini_and_tgt": initiator and target.

fast_write_enable=?

Switch status of the fast write function.

The value can be "yes" or "no", where:

  • "yes": Indicates fast write is enabled.
  • "no": Indicates fast write is disabled.

mor_enable=?

Switch status of the MOR function.

The value can be "yes" or "no", where:

  • "yes": Indicates the MOR function is enabled.
  • "no": Indicates the MOR function is disabled.

Views

Developer view

Usage Guidelines

  • Running this command causes ongoing services between the storage system and the host to be interrupted for a short period.
  • If the port mode specified in this command does not match that of the peer Fibre Channel host port, running this command causes the connection between the host and the storage system to be interrupted.
  • Before running this command, ensure that the port rate and port mode match those of the peer Fibre Channel host port.
  • If the updated port rate conflicts with the peer port rate, the host and the storage system cannot be connected to each other, and services cannot be recovered.
  • The current port is in FC-AL mode. If you want to change both the port mode and port rate, change the port mode first and then change the port rate.

Example

None

System Response

None

Translation
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Updated: 2019-07-12

Document ID: EDOC1000138381

Views: 724389

Downloads: 36

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