Overall disk layout example

Refer to this example when you are configuring the disk layout in an Oracle in an SAP environment environment.

The following figure shows file systems that are involved in a sample disk layout.

The following figure shows a sample disk layout. — Figure 1. Example overall disk layout for an SAP with Oracle environment

The respective disk categories contain the following disk types that are used for the various file systems:

Local disks on the production system (p_disk category) for the file systems

     /oracle/A01
     /usr/sap/A01
     /usr/sap/trans
     /oracle/A01/920_64
     /oracle/A01/sapbackup
     /oracle/A01/sapreorg
     /sapmnt/A01 
     /oracle/A01/acs (ACS_DIR)

Source volume disks on the production system (db_disk category) for the file systems

     /oracle/A01/sapdata1           part of VG sapfcl1
     /oracle/A01/sapdata2      part of VG sapfcl2
     /oracle/A01/sapdata3      part of VG sapfcl2
     /oracle/A01/sapdata4      part of VG sapfcl3
     /oracle/A01/sapdata5      part of VG sapfcl3
     /oracle/A01/sapdata6      part of VG sapfcl3

     /oracle/A01/origlogA      part of VG sapfcs1
     /oracle/A01/origlogB      part of VG sapfcs1

     /oracle/A01/mirrlogA      part of VG sapfcs2
     /oracle/A01/mirrlogB      part of VG sapfcs2

The sapdata<x> file systems were placed in different VGs for test and development purposes; alternatively they could be in a common volume group.

The Oracle control files are placed in <$ORACLE_HOME>/dbs/init<SID>.ora.:

     /oracle/A01/sapdata1/cntrl/cntrlA01.dbf
     /oracle/A01/origlogA/cntrl/cntrlA01.dbf
     /oracle/A01/origlogB/cntrl/cntrlA01.dbf

Local disks on the production system (p_db_disk category) for the file systems
```
    /oracle/A01/saparch     
```

Local disks on the backup system (b_disk category) for the file systems

     /oracle/A01
     /usr/sap/A01
     /usr/sap/trans
     /oracle/A01/acs (ACS_DIR)

(IBM Spectrum Protect server) Disks for the IBM Spectrum Protect server (TSM_disk category) for the file systems used for the IBM Spectrum Protect server databases, logs, and storage volumes.