hi all,

need some help with sizing a DR target SAN for replication.

Basically we have a Group of 3-arrays on the main site (2x PS4110 + PS6210X) with around 29Tb of available space. We forecast using max. of 25Tb of that space (4x volumes in total).

On the DR site we want to place an array(s) to replicate the source site. Basically we want/need to keep only 1x replica for each volume.

How can I calculate the requirements for this replication?

I cannot find any document describing how to do it.

Assistance is much appreciated