IBM TotalStorage 2109 M12, Инструкция по установке и обслуживанию

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The modem serial port has an RS–232 connector that is wired as a data terminal
equipment (DTE) device. It is designed to connect to a distributed computing
environment (DCE) device, such as a modem.
v Terminal serial port (also known as a console port)
The terminal serial port has an RS–232 signal subset connector that you can use
to connect to a PC serial port or dumb terminal.
v
Ethernet port
The Ethernet port has an RJ–45 connector and is capable of speeds of 10 Mbps
or 100 Mbps.
You can connect a separate modem to each modem serial port, and then connect
to the same or separate telephone lines for redundancy.
Note: The switch only detects modems during power on or restart. If a modem is
connected to an operating switch, you must restart the switch in order to
detect the modem.
The switch can continue to operate while a CP card is being replaced. To ensure
correct air circulation inside the switch and protection from dust, you can order filler
panels for any empty slots.
The active CP card controls the following services:
v System initialization
v
High availability and switch drivers
v Name server
v
SNMP
v Fabric OS
v
Extended Fabrics
v
Fabric Watch
v Remote Switch
v
Web Tools
v Zoning
Perform the following steps to determine the status of a CP card:
1. Check the LEDs on the CP card. See Table 4 on page 25 for information about
how to interpret the LEDs.
2. Check the CP card status by using the slotShow and haShow commands.
For additional information about these commands, see the Brocade Fabric OS
Reference .
Power supplies
The switch uses four power supplies. A minimum of two power supplies is required
to power a completely loaded chassis.
The switch can continue operating while a power supply is being replaced if at least
one power supply continues operating for every four 16–port cards that are
installed. You must have a minimum of two power supplies.
Chapter 3. Operating the M12
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