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Migrating a IPoIB subnet from default to custom IB partition (Doc ID 1981575.1)

Last updated on FEBRUARY 18, 2015

Applies to:

Big Data Appliance Hardware - Version Not Applicable to Not Applicable [Release N/A]
Exadata X4-2 Full Rack - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Goal

 To use a custom InfiniBand Partition instead of default and migrate the existing IPoIB subnet keeping all IP addresses same. 

Solution

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In this Document
Goal
Solution
 Steps to accomplish the task of migrating IPoIB from default to custom partition
 Step 1: Identify an unused InfiniBand Partition key
 Step 2: Determine if any node need to be added as limited member to the IB partition
 Step 3: Collect all IB port GUIDs of the host compute nodes that need to be part of this new IB partition
 Step 4: Identify the IB switch running master subnet manager
 Step 5: Start IB partition editing on master SM switch
 Step 6: Create IB partion on master SM switch
 Step 7: Add all IB port GUIDs in the new IB partition
 Step 8: Save and commit the switch configuration
 Step 9: Verify that the IB partition information is propagated into all standby SM switches
 Step 10: Backup current IPoIB configuration on all host compute nodes
 Step 11: Migrate current IPoIB configuration into new IB partition based configuration
 Step 12: Reboot first two host compute nodes one at a time
 Step 13: Verify the connectivity between the rebooted nodes
 Step 14: Reboot remaining host compute nodes one at a time
References

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