Failing To Communicate Between The Storage System And The As - Huawei OceanStor S2600 Manual

OceanStor S2600 Storage System
Troubleshooting
(2) Delete the original LUN and create a new LUN.
(3) Then, the system automatically begins to format the LUN.
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5.10 Failing to Communicate Between the Storage System
and the AS
This section describes how to handle the fault that the storage system fails to communicate with
the AS.
Symptom
The AS cannot use the storage resources provided by the storage system.
Possible Causes
One of the following causes may arouse the communication failure between the storage system
and the AS:
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Fault Diagnosis
You can determine the cause for the fault through the following procedure:
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Procedure
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Issue 03 (2010-01-28)
The data transmission cable is improperly connected or is faulty.
The controller is faulty.
Cause 1: The data transmission cable is improperly connected or is faulty.
1. Log in to the ISM to check whether the corresponding host port is normally connected
or observe whether the link indicator of the corresponding host port is normal.
2. If the corresponding host port is viewed to be disconnected on the ISM or the link
indicator is off, you can determine that the data transmission cable is improperly
connected or is faulty.
Cause 2: The controller is faulty.
1. Replace the faulty controller by a new one.
2. After the controller is replaced under the condition that other methods are invalid, the
fault disappears and services are recovered. You can determine that the controller is
faulty.
Cause 1: The data transmission cable is improperly connected or is faulty.
1. Remove and insert the data transmission cable or replace the data transmission cable.
2. The fault disappears and service are recovered.
Cause 2: The controller is faulty.
1. Replace the faulty controller by a new one.
2. The fault disappears and service are recovered.
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5 Troubleshooting of Common Faults
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