•
The maximum cable length is 100 meters for Fast Ethernet and copper Gigabit Ethernet and
550 meters for optical Gigabit Ethernet. This distance may be extended using switches and
VLAN technology. The maximum latency for a round-trip network packet between nodes is
500 milliseconds.
Obtaining More Information
See the Dell PowerVault NAS Fibre Channel Cluster Systems Installation and Troubleshooting Guide
for installation instructions.
Installing Peripheral Components in Your NAS Cluster Node
PCI Slots
This section provides configuration information for adding HBAs, a DRAC II or DRAC III, and
RAID controllers into your NAS cluster node PCI slots.
Table 1-2 provides configuration information for PowerVault 770N and 775N cluster nodes.
CAUTION:
Only trained service technicians are authorized to remove and access any of the
components inside the system. See your
safety precautions, working inside the computer, and protecting against electrostatic discharge.
Table 1-2. PCI Slot Assignments for NAS Cluster Nodes
PowerVault
PCI Buses
NAS System
770N
PCI bus 0: PCI slot 1 is 32 bit,
33 MHz.
PCI/PCI-X bus 2: PCI slot 7 is
64 bit, 33/66/100/133 MHz.
PCI/PCI-X bus 3: PCI slot 6 is
64 bit, 33/66/100/133 MHz.
PCI/PCI-X bus 4: PCI slots 4
and 5 are 64 bit, 33/66/100 MHz.
PCI/PCI-X bus 5: PCI slots 2
and 3 are 64 bit, 33/66/100 MHz.
NOTE:
cards with different operating
speeds, you should install the
fastest card in slot 7 and the
slowest card in slot 1.
System Information Guide
If you are using expansion
for complete information about
HBA
For dual HBA
configurations, Dell
recommends installing the
HBAs on separate 64-bit
PCI buses to balance the
load on the system.
RAID Controller
Install in any
available PCI slot,
or use the
integrated RAID
controller on the
system board.
Platform Guide
7
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