HP 316095-B21 - StorageWorks Edge Switch 2/24, Installation Manual, Page: 23 / 154

Switch Features
23 Edge Switch 2/24 Installation Guide
Ethernet LAN Connector
The front panel provides a 10/100 megabit per second (Mbps) RJ-45 twisted-pair
connector that attaches to an Ethernet LAN to provide communication with the
HAFM appliance or an SNMP management workstation. Two green LEDs are
associated with the LAN connector. When illuminated, the left LED indicates
LAN operation at 10 Mbps, and the right LED indicates LAN operation at 100
Mbps.
Initial Machine Load Button
The IML/RESET button is shown in Figure 2 on page 22. When the IML/RESET
button is pressed, held for three seconds, and released, the switch performs an
initial machine load that reloads the firmware from FLASH memory. This
operation is not disruptive to Fibre Channel traffic. If the button is held for more
than three seconds, the ERR LED blinks at twice the unit beaconing rate.
When the IML/RESET button is pressed and held for ten seconds, the switch
performs a reset. After three seconds, the ERR LED blinks at twice the unit
beaconing rate. A reset is disruptive and resets the:
■
Microprocessor and functional logic for the CTP card and reloads the
firmware from FLASH memory.
■
Ethernet LAN interface, causing the connection to the HAFM appliance to
drop momentarily until the connection automatically recovers.
■
Ports, causing all Fibre Channel connections to drop momentarily until the
connections automatically recover. This causes attached devices to log out and
log back in; therefore data frames lost during switch reset must be
retransmitted.
A reset should only be performed if a CTP card failure is indicated. As a
precaution, the IML/RESET button is flush mounted to protect against inadvertent
activation.
SFP Transceivers (Fibre Channel Ports)
The Edge Switch 2/24 provides 24 Fibre Channel ports. A single-mode or
multi-mode fiber optic cable attaches to a port through a small form factor
pluggable (SFP) transceiver. The SFP provides a duplex LC interface, and can be
detached from the switch port for easy replacement.