IBM TotalStorage DS300 Best Practices Manual page 56

iSCSI RAID controller for DS300 models 1701-1RS and 1701-2RD
Figure 3-9 shows the LEDs, controls and connectors for the model 1701-1RS
and 1701-2RD DS300 RAID controller with three Ethernet connectors.
Figure 3-9 DS300 models 1701-1RS and 2RD controller LEDs, controls and connections
Serial connectors (SP1 and SP2) - The serial connectors are for diagnostic
purposes only.
Management connector - The management connector is for ServeRAID
Manager function.
ETH 3 connector - The ETH 3 connector is for iSCSI data transfer.
ETH 2 connector - The ETH 2 connector is for iSCSI data transfer.
The three network ports on the DS300 model 1701-1RS and 1701-2RD
controllers are labeled ETH0, ETH2 and ETH3. ETH0 is used only to access the
controller to make configuration changes and administer the unit. ETH2 and
ETH3 are iSCSI interfaces used to pass data/traffic to the initiator. There is a
fourth Ethernet port on the DS300 controller named ETH1. It is used for
backchannel communication to keep the two controllers synchronized.
Table 3-5 iSCSI RAID controller LEDs
LED symbol Controller problem indicator
Green Controller Ready LED is off.
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IBM TotalStorage DS300 and DS400 Best Practices Guide
Action
If the Controller Ready LED is off, one or
more of the RAID controller fault LEDs will
be lit. Follow the recovery procedure for the
Fault LED that is lit.