SnapShot

SnapShot is a function of RAMAC Virtual Array (RVA) storage subsystems that allows you to make a very quick copy of a set of tracks (an entire volume, a data set, or just a random set of tracks). The copy operation is completed with only a few I/Os to the device.

SnapShot supports only System z®-attached (CKD) devices.

For additional information about:

SnapShot, refer to What is SnapShot copy?.
SnapShot requirements, refer to SnapShot copy requirements.
Using Snapshot, PPRC, and RVA together, refer to Using SnapShot copy, PPRC, and RVA together.