Oracle overall disk layout example

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Refer to this example when configuring the disk layout in a Oracle environment.

The following figure shows file systems involved in a sample disk layout.
Figure 1. Example overall disk layout for a Oracle environment

This figure shows a sample disk layout.
The respective disk categories contain the following disk types that are used for the various file systems:
  1. Local disks on the production system (p_disk category) for the file systems 
         /oracle/A01					part of VG ora_main
     /oracle/A01/acs (ACS_DIR)

    The Oracle database binary files are located in the directory that is defined by the ORACLE_HOME environment variable.

  2. Source volume disks on the production system (db_disk category) for the file systems 
          /oracle/A01/oradata/system    part of VG ora_d1
      /oracle/A01/oradata/temp      part of VG ora_d2
      /oracle/A01/oradata/custom     part of VG ora_d3

      /oracle/A01/origlogA      		  part of VG ora_l1
      /oracle/A01/origlogB      		  part of VG ora_l1

      /oracle/A01/mirrlogA      		  part of VG ora_l2
      /oracle/A01/mirrlogB      		  part of VG ora_l2
    The file systems for the control files must not reside on volume groups that are part of the FlashCopy® backup. For FlashCopy cloning at least one of the three Oracle control files must reside on a volume group that is part of the FlashCopy cloning operation.
          /oracle/A01/cntrl/cntrlA01.dbf	 part of VG ora_main
      /oracle/A01/misc/cntrlA01.dbf	 part of VG ora_misc
      /oracle/A01/arch/cntrlA01.dbf   part of VG ora_arch
  3. The p_db_disk category is not used for this setup.
  4. Local disks on the backup system (b_disk category) for the file system 
         /oracle/A01
     /oracle/A01/acs (ACS_DIR)
There is no need to create separate volume groups for logs and control files.