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HyperReplication Feature Guide for Block

OceanStor V5 Series V500R007

This document is applicable to OceanStor 5110 V5, 5110F V5, 5300 V5, 5300F V5, 5500 V5, 5500F V5, 5600 V5, 5600F V5, 5800 V5, 5800F V5, 6800 V5, 6800F V5, 18500 V5, 18500F V5, 18800 V5, and 18800F V5. It describes the working principle and application scenarios of the HyperReplication feature (for block). Also, it explains how to configure and manage the feature.
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What Can I Do If a Remote Connection Fails to Be Created Using the TOE Interface Module?

What Can I Do If a Remote Connection Fails to Be Created Using the TOE Interface Module?


What can I do if a remote connection fails to be created using the TOE interface module?


When a remote device whose type is Replication is added, or an iSCSI link is added to the remote device, if error code 1073804034 occurs or the connection fails to be created, the cause may be that the storage system uses the TOE interface module. When the local storage system uses the TOE interface module to connect to the remote storage system, since protocols of the TOE and non-TOE interface modules process data in different ways, the two systems may have different connection methods, resulting in a connection failure.


If the remote storage system uses the TOE interface module but the local storage system uses non-TOE interface module, the above problem does not occur.

Perform the following operations to locate and handle the problem:

  1. On a network where the TOE interface module connects the non-TOE interface module, if the link fails to be created on the storage system where the TOE interface module resides, and a communication exception error is reported, then the problem is what has been described above. If you need to further confirm the problem, contact Huawei technical support.
  2. After the confirmation, solve the problem with any of the following methods.

    Method 1: Select the non-TOE interface module to start the connection. The TOE interface module receives the connection. Establish the connection oppositely. This method helps establish the link.

    Method 2: On the storage system where the non-TOE interface module resides, run the command to disable the function of quickly recycling TIME_WAIT socket in the TCP connection. After the link is established, enable the function.

    1. Enter minisystem mode, run the off command.
    2. Add the remote device and establish the replication link.
    3. Enter minisystem mode, run the on command.
Updated: 2019-07-11

Document ID: EDOC1000181492

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