Art of BI: Oracle BI 11g Installation Preferred Location and Path Terminology

By | In 11g, Art of BI, OBIEE | July 27th, 2011

ORACLE_BASE:

/u01/app/oracle

MW_HOME (Application Tier):

ORACLE_BASE/product/fmw

  • Mount point: ORACLE_BASE/product/fmw
  • Shared storage location: ORACLE_BASE/product/fmw (VOL1 and VOL2)
  • Mounted from: Nodes alternatively mount VOL1 or VOL2 in such a way that at least half the nodes use an installation and the other half use the other one. In the EDG for Oracle Business Intelligence, APPHOST1 mounts VOL1 and APPHOST2 mounts VOL2. When only one volume is available, nodes mount two different directories in shared storage alternatively (that is, for example, APPHOST1 would use ORACLE_BASE/product/fmw1 as shared storage location and APPHOST2 would use ORACLE_BASE/product/fmw2 as shared storage location).

    Note:

    When there is just one volume available in the shared storage, you can provide redundancy using different directories to protect from accidental file deletions and for patching purposes. Two MW_HOMEs would be available; at least one at ORACLE_BASE/product/fmw1, and another at ORACLE_BASE/product/fmw2. These MW_HOMEs are mounted on the same mount point in all nodes.

MW_HOME (Web tier):

ORACLE_BASE/product/fmw/web

  • Mount point: ORACLE_BASE/product/fmw
  • Shared storage location: ORACLE_BASE/product/fmw (VOL1 and VOL2)
  • Mounted from: For shared storage installations, nodes alternatively mount VOL1 or VOL2 in such a way that at least half the nodes use an installation and the other half use the other one. In the EDG for BI, WEBHOST1 would mount VOL1 and WEBHOST2 would mount VOL2. When only one volume is available, nodes mount the two suggested directories in shared storage alternatively (that is, for example, WEBHOST1 would use ORACLE_BASE/product/fmw1 as shared storage location and WEBHOST2 would use ORACLE_BASE/product/fmw2 as shared storage location).

    Note:

    Web tier installation is usually performed on local storage to the WEBHOST nodes. When using shared storage, appropriate security restrictions for access to the storage device across tiers must be considered.

WL_HOME:

MW_HOME/wlserver_10.3

ORACLE_HOME:

MW_HOME/Oracle_BI1

ORACLE_COMMON_HOME:

MW_HOME/oracle_common

ORACLE_INSTANCE:

ORACLE_BASE/admin/instance_name

  • If you are using a shared disk, the mount point on the system is ORACLE_BASE/admin/instance_name mounted to ORACLE_BASE/admin/instance_name (VOL1).

    Note:

    (VOL1) is optional; you could also use (VOL2).

Domain Directory for Admin Directory:

ORACLE_BASE/admin/domain_name/aserver/domain_name (the last “domain_name” is added by the Configuration Assistant).

  • Mount point on system: ORACLE_BASE/admin/domain_name/aserver
  • Shared storage location: ORACLE_BASE/admin/domain_name
  • Mounted from: Only the node where the Administration Server is running needs to mount this directory. When the Administration Server is relocated (failed over) to a different node, the node then mounts the same shared storage location on the same mount point. The remaining nodes in the topology do not need to mount this location.

Domain Directory for Managed Server:

ORACLE_BASE/admin/domain_name/mserver/domain_name

  • If you are using a shared disk, the mount point on the system is ORACLE_BASE/admin/domain_name/mserver mounted to ORACLE_BASE/admin /domain_name/Noden/mserver/ (each node uses a different domain directory for Managed Servers).

References:

http://download.oracle.com/docs/cd/E21764_01/doc.1111/e15722/database.htm#CIAEDDDI

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Christian Screen
Christian is an innovator in analytics and data warehousing design, best practices, and delivery. With more than fifteenyears of decision support and data warehousing with key experiences at Office Depot HQ, Sierra-Cedar, and Capgemini, he oversees the Oracle Analytics Practice which includes the technical development and delivery of Oracle BI collaboration software, data warehouse solutions, Oracle BI/EPM projects, and packaged analytics solutions at Datavail.

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