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How to Manually Configure Disk Storage devices for use with Oracle ASM 11.2 and 12.1 on IBM: Linux on System z under RedHat 6 (Doc ID 1377392.1)

Last updated on FEBRUARY 26, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.3 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
IBM: Linux on System z

Goal

This article is applicable to RHEL 6.2 and later This is an addendum to <Document 1351746.1> as configuration has changed between Redhat 5 and Redhat 6 to set up alias names, permissions for fcp/scsi multipath devices.

ASMLib cannot be used in 11.2 or 12.1 and above with fcp/scsi devices due to a 512 block compatibility issue <Bug:12346221> on Linux for System z. In addition, ASMLib may  be desupported in RHEL 6 releases going forward. This article provides platform specific examples for manually configuring eckd/dasd devices, single path scsi/fcp, and multi-path scsi/fcp/LUNS via udev rules and multipathing which provides the same functionality, flexibility and device persistence as oracleasm and ASMLib.

 

Note: If using an Oracle single instance database without ASM,  with RHEL 6 then an ext4 filesystem (the default) is the recommended file system type.


This article provides platform specific examples for manually configuring multi-path scsi/fcp/LUNS via udev rules and multipathing which provides the same functionality, flexibility and device persistence as ASMLib.

Solution

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In this Document
Goal
Solution
 1) How to configure multi-pathing for Oracle 11.2/12.1 ASM for fcp/scsi Devices with Linux on System z on RHEL 6.
References

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