Prerequisite
Before setting the modem, confirm that users' equipment room is accessible to the PSTN and
equipped with a modem.
Context
You can log in to the CLI through the serial port on the controller to implement remote
management and maintenance. This document takes the 56 K modem that remotely access the
storage system through public switched telephone network (PSTN) dialup as an example to
describe how to configure the remote modem.
NOTE
In PSTN communications, the data needs not to be transmitted on the Internet. This ensures the data security.
Meanwhile, when the remote maintenance is not implemented, you would better power off the modem for
higher security.
To implement remote maintenance, two modems are needed: one remote modem and one near-
end modem. Figure 2-1 shows the networking mode.
Figure 2-1 Remote maintenance networking
Near-end
Modem
Remote
Modem
PSTN
Storage
Device
Serial Port
Serial Port
Maintenance
Terminal
Telephone
Line
Telephone
Line
LINE Port LINE Port
Serial Port
Serial Port
Serial Port Cables
Telephone Line
In the figure, consider the following items:
l Remote modem
The remote modem is connected to the serial port of the controller as an answer end.
l Near-end modem
The near-end modem is connected to the serial port of the maintenance terminal as a call
end.
2 Troubleshooting Preparation
OceanStor S2600 Storage System
Troubleshooting
2-4 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 03 (2010-01-28)
To Next Page
Loading...
