ADOP Prepare Phase Fails With "Error calling runFSSanityValidateConfig"

Error

[UNEXPECTED]Error occurred running "perl /u01/app/fs1/EBSapps/appl/ad/12.0.0/patch/115/bin/txkADOPPreparePhaseSanityCheck.pl -contextfile=/u01/app/fs1/inst/apps/QA_erpqa/appl/admin/QA_erpqa.xml -patchcontextfile=/u01/app/fs2/inst/apps/QA_erpqa/appl/admin/QA_erpqa.xml -promptmsg=hide -mode=update -console=off -sessionid=7 -timestamp=20180211_103444 -outdir=/u01/app/fs_ne/EBSapps/log/adop/7/20180211_103444/prepare/erpqa -action=filesystemcheck"
    [UNEXPECTED]Error calling runFSSanityValidateConfig subroutine
    Stopping services on patch file system.
    Stopping admin server.
    Stopping node manager.
    [ERROR]     Prepare phase has failed.

Solution

To resolve the issue test the following steps in a development instance where the issue can be reproduced and then migrate accordingly:
1. Execute the following ABORT process:

$ adop phase=abort
$ adop phase=cleanup cleanup_mode=full
$ adop phase=fs_clone

2. Increase the file system space to 25 GBs (or more depending on your available resources).

3. Run the ADOP Prepare phase again:
$ adop phase=prepare

4. Confirm the prepare phase completes successfully and the above errors no longer appear in the log.

Reference: Doc ID 2223374.1