Compaq ProLiant 6400R Compaq Parallel Database Cluster Model PDC/O1000 for Ora - Page 57

Compaq Operating System Dependent Modules, OSDs for Oracle8i Parallel Server, Oracle Software

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Cluster Software Components 3-5 Compaq Operating System Dependent Modules Compaq supplies low-level services, called operating system dependent modules (OSDs), which are required by Oracle8i Parallel Server. The OSD layer monitors critical clustering hardware components, constantly relaying cluster state information to Oracle8i Parallel Server. Oracle8i Parallel Server monitors this information and takes pertinent action as needed. For example, the OSD layer is responsible for monitoring the cluster interconnect of each node in the cluster. The OSD layer determines if one of the nodes is no longer responding to the cluster heartbeat. If the node still does not respond, the OSD layer determines it is unavailable. The OSD layer evicts the node from the cluster and informs Oracle8i Parallel Server. Oracle8i Parallel Server recovers the part of the database affected by that node, and reconfigures the cluster with the remaining nodes. OSDs for Oracle8i Parallel Server For a detailed description of how the OSD layer interacts with Oracle8i Parallel Server, refer to the Oracle8i Parallel Server Setup and Configuration Guide. Also refer to "Installing Compaq OSDs" in Chapter 5, "Installation and Configuration." The OSD software is found on the Compaq Parallel Database Cluster Clustering Software for Oracle8i on Microsoft Windows 2000 CD. This CD is provided in the cluster kit for the PDC/O1000. Oracle Software The PDC/O1000 supports Oracle8i software. If you are using a release other than Oracle8i Release 8.1.7, confirm that the release has been certified for the PDC/O1000 on the Compaq website at www.compaq.com/solutions/enterprise/ha-pdc.html Oracle8i Server Enterprise Edition The Oracle8i Server Enterprise Edition provides the following: I Oracle8i Server I Oracle8i Parallel Server Option I Oracle8i Enterprise Manager

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Cluster Software Components
3-5
Compaq Operating System Dependent Modules
Compaq supplies low-level services, called operating system dependent
modules (OSDs), which are required by Oracle8
i
Parallel Server. The OSD
layer monitors critical clustering hardware components, constantly relaying
cluster state information to Oracle8
i
Parallel Server. Oracle8
i
Parallel Server
monitors this information and takes pertinent action as needed.
For example, the OSD layer is responsible for monitoring the cluster
interconnect of each node in the cluster. The OSD layer determines if one of
the nodes is no longer responding to the cluster heartbeat. If the node still does
not respond, the OSD layer determines it is unavailable. The OSD layer evicts
the node from the cluster and informs Oracle8
i
Parallel Server.
Oracle8
i
Parallel Server recovers the part of the database affected by that
node, and reconfigures the cluster with the remaining nodes.
OSDs for Oracle8
i
Parallel Server
For a detailed description of how the OSD layer interacts with
Oracle8
i
Parallel Server, refer to the
Oracle8i Parallel Server Setup and
Configuration Guide.
Also refer to “Installing Compaq OSDs” in Chapter 5,
“Installation and Configuration.”
The OSD software is found on the Compaq Parallel Database Cluster
Clustering Software for Oracle8
i
on Microsoft Windows 2000 CD. This CD is
provided in the cluster kit for the PDC/O1000.
Oracle Software
The PDC/O1000 supports Oracle8
i
software. If you are using a release other
than Oracle8
i
Release 8.1.7, confirm that the release has been certified for the
PDC/O1000 on the Compaq website at
www.compaq.com/solutions/enterprise/ha-pdc.html
Oracle8
i
Server Enterprise Edition
The Oracle8
i
Server Enterprise Edition provides the following:
■
Oracle8
i
Server
■
Oracle8
i
Parallel Server Option
■
Oracle8
i
Enterprise Manager