FS System : Mappings for LUNs are Deleted After FS Path Manager (FSPM) Installation

Asset ID:	1-72-2338312.1
Update Date:	2018-01-08
Keywords:

Solution Type Problem Resolution Sure

Solution 2338312.1 : FS System : Mappings for LUNs are Deleted After FS Path Manager (FSPM) Installation

Applies to:

Oracle FS1-2 Flash Storage System - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Symptoms

After a fresh installation of FS Path Manager (FSPM), the host lost access to the LUNs. The Oracle FS System Manager GUI shows "no mappings" for the LUNs that had been previously mapped to that host.

Changes

Fresh Installation of FSPM.

Cause

FSPM automatically creates a new host entry for the host in the Oracle FS System Services and associates the host's initiators with that host entry. Any manually created hosts with mapped LUNs will have their mappings deleted during a fresh FSPM installation.

Solution

Any manually created host entry must be deleted before installing FSPM. By default, the LUN mappings themselves are not deleted and are picked up by the newly created host entry once FSPM is installed. While this can be overwritten by checking the "Delete mappings and initiators?" box in the GUI or using the -removeInitiatorsAndMappings option in the CLI, do not do so when installing FSPM.

If the host entry is not deleted prior to installing FSPM, existing mappings are deleted and the host loses the access. To recover, the affected LUNs need to be remapped to the newly created host entry by FSPM.

References

<NOTE:2003723.1> - FS System: How to Download Oracle Flash Storage Path Manager (FSPM)
<NOTE:2080434.1> - FS System: How to Change Hostname on Host Running FS Path Manager (FSPM)
<NOTE:2185038.1> - FS System: How to Preserve Host-to-LUN Mappings When Upgrading or Re-Installing FS Path Manager (FSPM)

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