What are the real differences between warm and cold storage in an Archiver when working with a virtual deployment?The only benefit I could think is that data stored in the cold tiers would take less space than data stored in the warm tiers. But is this the case? If I plan on deploying a virtual Archiver on top of VMware using SAN for storage, is there any real benefit in using cold storage over hot/warm?
The compression rates on warm and cold storage are the same. The only difference is the storage you choose to use for each. If you would like to use slower storage media for a "cold" tier, it will move data to warm storage first and then from warm to cold as warm fills up.