By default, full switch deployments for file assets copy the live directory of a SwitchableLocalFileSystem to the inactive directory on the second apply phase. The copy follows the verification rules described in Checksum Verification Deployment Mode if checksum verification is enabled (noVerificationByChecksum=false).
There are certain site configurations where turning this feature off might improve performance, specifically if there is a simultaneous repository deployment that takes a similar amount of time. The feature can be disabled by setting the following property in the /atg/deployment/file/DeploymentConfiguration component on the asset management server:
noChecksumAfterCopy=true
