EMC Storage Product Knowledge Sharing

Most of user asked me what are basic differences between EMC Clone/Mirror/Snapshot? This is really confusing terminology because most of things will be same logically.Only thing change that is implementation and purpose of uses. I am trying to write basic and common differences:1) A clone is a full copy of data in a source LUN. A snapshot is a point-in time "virtual" copy that does not occupy any disk space.2) A snapshot can be created or destroyed in seconds, unlike a clone or mirror. A clone, for example, can take minutes...

Handling BCV and Clone Disk on Veritas Volume Manager. Get Output of Vxdisk List command# vxdisk listVxdisk list command showing that some disks are marked with the udid_mismatch flag.Write a New UUID to DiskYou can use the following command to update the unique disk identifier (UDID) for one or more disks:# vxdisk [-f] [-g diskgroup] updateudid disk ...Note : The -f option must be specified if VxVM has not raised the udid_mismatch flag for a disk.Importing a disk group containing cloned/BCV disksYou can then import the cloned...