Dell EMC AX4-5 Hardware Installation And Troubleshooting Manual

Preparing Your Systems for Clustering 45Snapshot ManagementSnapshot Management captures images of a virtual disk and retains the imageindependently of subsequent changes to the files. The images can be used toshare virtual disks with another system without affecting the contents of thesource virtual disk. Snapshot Management creates copies of either virtualdisks or snapshots. Snapshots are virtual copies that create an image of thesource virtual disk at the time the snapshot was created. This snapshot isretained independently of subsequent changes to the source virtual disk. Youcan use snapshots to facilitate backups or to allow multiple hosts to accessdata without affecting the contents of the source virtual disk.WARNING: To avoid data corruption, do not access a snapshot from the samenode as its source.SAN CopySAN Copy allows you to move data between storage systems without usinghost processor cycles or LAN bandwidth. It can be used in conjunction withSnapView™ or MirrorView and is managed from within Navisphere Manager.Navishphere ManagerOptionally, you can also upgrade Navisphere Express to EMC Navisphere®Manager—a centralized storage management application used to configureDell/EMC storage systems.EMC Navisphere Manager adds the support for EMC MirrorView, anoptional software that enables synchronous or asynchronous mirroringbetween two storage systems.MirrorViewMirrorView automatically duplicates primary storage system data from acluster or stand-alone system to a secondary storage system. It can be used inconjunction with SnapView and is managed from within Navisphere Manager.