Getting hands on deployment information concerning SharePoint 2013 can be a challenge. Managed to locate this guide which is created by Microsoft detailing the process! This is available from the Knowledge Base so check that out for more guides as they come in. Also, check out the Ten Steps paper on the planning and implementation to get a complete picture..
You may come across this error when attempting to carry out a PSConfig upgrade using office2010-kb2597014-fullfile-x64-glb: An exception of type Microsoft.SharePoint.Administration.SPUpdatedConcurrencyException was thrown. Additional exception information: An update conflict has occurred, and you must re-try this action. The object SPUpgradeSession Name=Upgradexxxx was updated by Domain\UserID, in the PSCONFIG (xxxx) process, on machine SharePointServer01. View the tracing log for more information about the conflict.