1.what is use of copy operation in EMC Unity Array, does copy get stored in ?
2.How can I ensure availability of snapshots, so that I can restore LUN when its deleted ?
3.Can I move snapshot to other region where it is not effected when , source LUN is deleted by mistake ?
Thanks in Advance
I would recommend this white paper as a starting point:
Andre @ Dell EMC
copy just creates another snapshot with the same content
possible use case if you want to attach it to a different server
you will get a warning when deleting a LUN that this also deletes its snapshots
If you really want to protect against LUN deletion you need to create a relica (full copy) which can be on a different pool (but doesnt need to in order to protect against LUN deletion)
I would suggest to download and install the UnityVSA
There you can check how the system behaves