Cabling your power supplies, Cabling the mouse, keyboard, and monitor – Dell PowerVault 775N (Rackmount NAS Appliance) User Manual
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The private network connection to the cluster nodes is provided by a second or subsequent NIC that is installed in each node.
This network is used for intracluster communications.
lists the required hardware components and connection method for three possible private network configurations.
Table 3-4. Private Network Hardware Components and Connections
Method
Hardware Components
Connection
Network switch
Fast Ethernet or Gigabit
Ethernet NICs and switches
Connect standard Ethernet cables from the NICs in both cluster nodes
to a Fast Ethernet or Gigabit Ethernet switch.
Point-to-Point
Fast Ethernet
Fast Ethernet NICs
Connect a crossover Ethernet cable between the Fast Ethernet NICs in
both cluster nodes.
Point-to-Point
Gigabit Ethernet
Copper Gigabit Ethernet NICs
Connect a standard Ethernet cable between the Gigabit Ethernet NICs
in both cluster nodes.
Cabling the Mouse, Keyboard, and Monitor
If you are installing a NAS cluster configuration in a Dell rack, your cluster will require a switch box to enable the mouse,
keyboard, and monitor for your cluster nodes.
See your rack installation documentation included with your rack for instructions on cabling each cluster node's KVM to the
mouse/keyboard/monitor switch box in the rack.
Cabling Your Power Supplies
Dell recommends the following guidelines to protect your cluster configuration from power-related failures:
For cluster nodes with multiple power supply connections, plug each connection into a separate AC circuit.
Connect UPSs to your server and storage systems (where applicable).
For some environments, you should consider having backup generators and power from separate electrical stations.
See your server and storage system documentation for more information on the power requirements for your cluster's
components.
Connecting Standby Power Supplies in the Storage System
NAS Fibre Channel cluster configurations require dual SPSs in the Dell | EMC storage systems. The SPE receives power from
redundant SPSs, which are connected to separate power sources. If an SPS power source fails, the redundant SPS and its
power source provide backup power to the SPE. If both SPS power sources fail, the SPSs enable the SPE through the SPS
sense connectors to flush the write cache to the internal vault drives (CX200 and CX400) or the vault drives in the first
attached DAE2 enclosure (CX600). This process ensures that the cached data in the SPE is not lost during a power failure.
See your storage system documentation for additional information about the SPSs.
, and
show the power cable configuration for the supported storage systems.
NOTE:
The CX200 and CX400 enclosure address must be set to "0" for the system to boot and function properly.