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On the back of the server, the top port is Ethernet 1 and the bottom is Ethernet 2.
The LEDs for these ports are shown in Figure 1-19.
Figure 1-19 Onboard dual-port Gigabit Ethernet controller
The LEDs indicate status as follows:
LED Blink = port has activity
LED On = port is linked
LED Off = port is not linked
1.11.2 Redundancy features
The x3850 M2 and x3950 M2 have the following redundancy features to maintain
high availability:
Six hot-swap, multispeed fans provide cooling redundancy and enable
individual fan replacement without powering down the server. Each of the
three groups of two fans is redundant. In the event of a fan failure, the other
fans speed up to continue to provide adequate cooling until the fan can be
hot-swapped by the IT administrator. In general, failed fans should be
replaced within 48 hours following failure.
The two Gigabit Ethernet ports can be configured as a team to form a
redundant pair.
The memory subsystem has a number of redundancy features, including
memory mirroring and Memory ProteXion, as described in 1.8, "Memory
subsystem" on page 39.
RAID disk arrays are supported for both servers, each with the onboard LSI
1078 for RAID-0 and RAID-1. The optional ServeRAID MR10k provides
additional RAID features and a 256 MB battery-backed cache. The x3850 M2
and x3950 M2 has four internal, hot-swap disk drive bays.
The two, standard 1440 W hot-swap power supplies are redundant in all
configurations at 220 V. At 110 V, each power supply draws approximately
720 W and the second power supply is not redundant.
LED for port 2
(triangle pointing
down)
LED for port 1
(triangle pointing up)
Ethernet 1
Ethernet 2
Chapter 1. Technical overview
45
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