HP ProLiant 4500 Compaq ProLiant Cluster HA/F100 and HA/F200 Administrator Gui - Page 80

Installing the Cluster Interconnect, If you are using a dedicated interconnect

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Setting Up the Compaq ProLiant Clusters HA/F100 and HA/F200 3-7 The host bus adapters, which connect the two servers to the storage through storage hubs, are installed in each server like any other PCI card. The HA/F100 cluster requires one host bus adapter per server, while the HA/F200 requires two host bus adapters per server. The extra host bus adapter in each server contributes to the enhanced high availability features of the HA/F200. The dual host bus adapters, in conjunction with dual hubs and dual array controllers form two completely independent paths to the storage, making the server-to-storage connection totally redundant. However, it is important to ensure that each host bus adapter in a particular server is connected to a different hub, because it is physically possible to connect the servers to the storage hubs is such a way that the cluster will appear to be working correctly, but will not be able to fail over properly. NOTE: To determine the preferred slots for installing the host bus adapters, use PCI bus-loading techniques to balance the PCI bus for your hardware and configuration. For more information, refer to your server documentation, Performance and Tuning TechNotes, and the Compaq White Paper, "Where Do I Plug the Cable? Solving the Logical-Physical Slot Numbering Problem," available from the Compaq website (http://www.compaq.com). Installing the Cluster Interconnect There are many ways to physically set up an interconnect. Chapter 1 discusses the various types of interconnect strategies. If you are using a dedicated interconnect, install an interconnect adapter card (Ethernet or ServerNet) in each cluster node if you are using a dedicated interconnect. If you are sharing your local area network (LAN) network interface card (NIC) with your interconnect, install the LAN NIC. NOTE: To determine the preferred slot for installing the interconnect card, use PCI bus-loading techniques to balance the PCI bus for your hardware and configuration. If you are installing the ServerNet card, treat it as a NIC in determining the preferred installation slot for maximum performance. For more information, see your server documentation, Performance and Tuning TechNotes, and the Compaq White Paper, "Where Do I Plug the Cable? Solving the Logical-Physical Slot Numbering Problem," available from the Compaq website (http://www.compaq.com). For specific instructions on how to install an adapter card, refer to the documentation for the interconnect card you are installing or the Compaq ProLiant Server you are using. The cabling of interconnects is outlined later in this chapter.

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Setting Up the Compaq ProLiant Clusters HA/F100 and HA/F200
3-7
The host bus adapters, which connect the two servers to the storage through
storage hubs, are installed in each server like any other PCI card. The
HA/F100 cluster requires
one
host bus adapter per server, while the HA/F200
requires
two
host bus adapters per server. The extra host bus adapter in each
server contributes to the enhanced high availability features of the HA/F200.
The dual host bus adapters, in conjunction with dual hubs and dual array
controllers form two completely independent paths to the storage, making the
server-to-storage connection totally redundant. However, it is important to
ensure that each host bus adapter in a particular server is connected to a
different hub, because it is physically possible to connect the servers to the
storage hubs is such a way that the cluster will appear to be working correctly,
but will not be able to fail over properly.
NOTE:
To determine the preferred slots for installing the host bus adapters, use PCI
bus-loading techniques to balance the PCI bus for your hardware and configuration. For
more information, refer to your server documentation, Performance and Tuning
TechNotes, and the Compaq White Paper, “Where Do I Plug the Cable? Solving the
Logical-Physical Slot Numbering Problem,” available from the Compaq website
Installing the Cluster Interconnect
There are many ways to physically set up an interconnect. Chapter 1 discusses
the various types of interconnect strategies.
If you are using a dedicated interconnect, install an interconnect adapter card
(Ethernet or ServerNet) in each cluster node if you are using a dedicated
interconnect. If you are sharing your local area network (LAN) network
interface card (NIC) with your interconnect, install the LAN NIC.
NOTE:
To determine the preferred slot for installing the interconnect card, use PCI
bus-loading techniques to balance the PCI bus for your hardware and configuration. If you
are installing the ServerNet card, treat it as a NIC in determining the preferred installation
slot for maximum performance. For more information, see your server documentation,
Performance and Tuning TechNotes, and the Compaq White Paper, “Where Do I Plug the
Cable? Solving the Logical-Physical Slot Numbering Problem,” available from the Compaq
For specific instructions on how to install an adapter card, refer to the
documentation for the interconnect card you are installing or the Compaq
ProLiant Server you are using. The cabling of interconnects is outlined later in
this chapter.