Golden Clone DesignSummaryPoor Cloning Experience Symptoms PROD / Source instances over 20TClones are taking a long time to runClones are failingClone targets are very large Release or Environment This applies to all versions Cause Size of source instance is over 20TBPreservers are not being usedAttachment, logs and audit data are being clonedClone targets are very largeRequesting several clones at one time from PRODEach time you clone data needs to be excluded/removed which takes much cleanup time Resolution Improve cloning performance and reduce disk space footprint Clone from PROD to one Preprod/Staging instance, we will call it the Golden instance Exclude attachments, logs, and audit dataUse preserversRun cleanup scripts against Golden instanceData removed only one time instead of multiple Golden instance Clone from Golden to all targets instances neededSince data no longer needs to be removed the clones run much fasterAlso reducing footprint since all the unwanted data has already been removedThis also allows more clones to be scheduled at the same time due to smaller instance sizes **Not recommended to start this for the first time right after a major upgrade. Clone FAQs - Frequently Asked Questions Understanding Clone Profiles - Hints, Tips and Known Issues