Faced below issue while patching on Exadata DB node.
While running dbnodeupdate.sh we got below warning.
./dbnodeupdate.sh -u -l /u01/19625719/Infrastructure/11.2.3.3.1/ExadataDatabaseServer/p18876946_112331_Linux-x86-64.zip -v
Continue ? [Y/n]
y
(*) 2015-02-03 19:33:28: Unzipping helpers (/u01/19625719/Infrastructure/ExadataDBNodeUpdate/3.60/dbupdate-helpers.zip) to /opt/oracle.SupportTools/dbnodeupdate_helpers
(*) 2015-02-03 19:33:28: Initializing logfile /var/log/cellos/dbnodeupdate.log
(*) 2015-02-03 19:33:29: Collecting system configuration details. This may take a while...
(*) 2015-02-03 19:33:56: Validating system details for known issues and best practices. This may take a while...
(*) 2015-02-03 19:33:56: Checking free space in /u01/19625719/Infrastructure/11.2.3.3.1/ExadataDatabaseServer/iso.stage.030215193245
(*) 2015-02-03 19:33:57: Unzipping /u01/19625719/Infrastructure/11.2.3.3.1/ExadataDatabaseServer/p18876946_112331_Linux-x86-64.zip to /u01/19625719/Infrastructure/11.2.3.3.1/ExadataDatabaseServer/iso.stage.030215193240, this may take a while
(*) 2015-02-03 19:34:08: Original /etc/yum.conf moved to /etc/yum.conf.030215193240, generating new yum.conf
(*) 2015-02-03 19:34:08: Generating Exadata repository file /etc/yum.repos.d/Exadata-computenode.repo
Warning: Total amount of free space in the volume group is less than 2GB. Unable to make a snapshot
Warning: Backup functionality will not be provided by dbnodeupdate.sh and need to be made separately
Issue: