Installation manual

License Management Supplement
B.4 Volume Shadowing for OpenVMS License
B.4.2 Volume Shadowing Software Phase I and Phase II
In the past, volume shadowing has offered two modes of operation: phase I and
phase II. The original implementation of volume shadowing, phase I, was HSC
controller-based. The newer implementation, phase II, is host-based and provides
performance superior to phase I.
With the release of OpenVMS VAX Version 6.2, phase I volume shadowing is
no longer available. Refer to the Volume Shadowing for OpenVMS manual for
instructions about moving from phase I to phase II.
B.4.3 Types of Licenses
Two types of volume shadowing licenses are valid for OpenVMS VAX Version 7.3:
• Capacity license — If you are using this type of license, you must have one
license for each node in a cluster that is accessing shadowed data.
• Per-disk license — If you are using this type of license, you must have one
license for every disk contained in the shadow set.
For information about OpenVMS VAX Version 7.3 changes to per-disk
licensing for volume shadowing, see Section 1.1.2.
Refer to the Volume Shadowing for OpenVMS manual for more information about
these two licenses.
B.5 Other System Integrated Product Licenses
After you install OpenVMS VAX Version 7.3, you must register licenses for any
system integrated product. If you upgraded to OpenVMS VAX Version 7.3, you do
not need to reregister licenses for system integrated products.
B–6 License Management Supplement