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Attempting to generate a Pool error: Server Error: Org.apache.xmlrpc.XmlRpcException: Already In A Cluster (Doc ID 2333695.1)

Last updated on MAY 26, 2021

Applies to:

Oracle VM - Version 3.0.1 and later
Oracle Cloud Infrastructure - Version N/A and later
Linux x86-64


When attempting to create a pool for a new Oracle VM environment, the job fails with "/dev/.... already in a cluster".

Oracle VM Manager  shows below error:

<2017-11-28T10:53:53.979-0500> <Error> <ovm.mgr.api.job.Job> <Job[Create Cluster Heartbeat Device on Cluster: xxxx ] Internal (operation) Error due to : OVMAPI_4010E Attempt to send command: create_pool_filesystem to server:ovs-server failed. OVMAPI_4004E Sync command failed on server: x.x.x.x Command: create_pool_filesystem, Server error: org.apache.xmlrpc.XmlRpcException: <type 'exceptions.Exception'>:/dev/mapper/36xxxx already in a cluster

This document provide steps to use dd to clear out the ocfs2 filesystem metadata, allowing the disk to be used.


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