Compaq ProLiant 6500 Compaq Parallel Database Cluster Model PDC/O2000 for Orac - Page 128

Shared Disk Drives, Network Planning

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4-20 Compaq Parallel Database Cluster Model PDC/O2000 for Oracle8i and Windows 2000 Administrator Guide Shared Disk Drives Shared disk drives are contained in the RA4000/RA4100 Arrays and are accessible to each node in the PDC/O2000. If a logical drive is configured with a RAID level that does not support fault tolerance (for example, RAID 0), then the failure of the shared disk drives in that logical drive will disrupt service to all Oracle databases that are dependent on that disk drive. See "Selecting the Appropriate RAID Levels" earlier in this chapter. As with other types of failures, Compaq Insight Manager monitors the status of shared disk drives and will mark a failed drive as "Failed." Network Planning Windows 2000 Advanced Server Hosts Files for an Ethernet Cluster Interconnect When an Ethernet cluster interconnect is installed between cluster nodes, the Compaq operating system dependent modules (OSDs) require a unique entry in the hosts and lmhosts files located at %SystemRoot%\system32\drivers\etc for each network port on each node. Each node needs to be identified by the IP address assigned to the Ethernet adapter port used by the Ethernet cluster interconnect and by the IP address assigned to the Ethernet adapter port used by the client LAN. The suffix "_san" stands for system area network. The following list identifies the format of the hosts and lmhosts files for a four-node PDC/O2000 cluster with an Ethernet cluster interconnect: IP address node1 IP address node1_san IP address node2 IP address node2_san IP address node3 IP address node3_san IP address node4 IP address node4_san

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4-20
Compaq Parallel Database Cluster Model PDC/O2000 for Oracle8i and Windows 2000 Administrator Guide
Shared Disk Drives
Shared disk drives are contained in the RA4000/RA4100 Arrays and are
accessible to each node in the PDC/O2000.
If a logical drive is configured with a RAID level that does not support fault
tolerance (for example, RAID 0), then the failure of the shared disk drives in
that logical drive will disrupt service to all Oracle databases that are dependent
on that disk drive. See
“
Selecting the Appropriate RAID Levels
”
earlier in this
chapter.
As with other types of failures, Compaq Insight Manager monitors the status
of shared disk drives and will mark a failed drive as
“
Failed.
”
Network Planning
Windows 2000 Advanced Server Hosts Files for an
Ethernet Cluster Interconnect
When an Ethernet cluster interconnect is installed between cluster nodes, the
Compaq operating system dependent modules (OSDs) require a unique entry
in the hosts and lmhosts files located at %SystemRoot%\system32\drivers\etc
for each network port on each node.
Each node needs to be identified by the IP address assigned to the Ethernet
adapter port used by the Ethernet cluster interconnect and by the IP address
assigned to the Ethernet adapter port used by the client LAN. The suffix
“
_san
”
stands for system area network.
The following list identifies the format of the hosts and lmhosts files for a
four-node PDC/O2000 cluster with an Ethernet cluster interconnect:
IP address
node1
IP address
node1_san
IP address
node2
IP address
node2_san
IP address
node3
IP address
node3_san
IP address
node4
IP address
node4_san