Copy the file /choose/zimbra/tmp/modules/hsm/hsm-details.tgz from the resource server for the destination server under /decide/zimbra/tmp/modules/hsm/. This alteration gets rid of the dependencies of having a weekly complete and daily incremental backups, which saves important Area. The backup also takes a ldap.bak dump to allow A fast restore of the LDAP server. https://www.hostscheap.com/zimbra-migration-service