IntroductionThis section includes the following topics:About the NetBackup 8.1 Upgrade GuideAbout changes in NetBackup 8.1Potential required changes for NetApp clustersAbout automatic file changes from an upgradeErrors when Bare Metal Restore information is replicated using Auto Image ReplicationKnown catalog backup limitationAbout Veritas Services and Operations Readiness ToolsRecommended SORT procedures for new installationsRecommended SORT procedures for upgradesAbout the NetBackup preinstall checker