IBM System Storage TS3500, Introduction And Planning Manual

Page: 35 / 290

is full across the library. For more information about HD frames and library
performance, see “Library performance” on page 83.
HD frame models S24 and S54 can be attached to installed Dx2, Dx3, Lx2, and Lx3
frames and these frames can be intermixed in the same library configuration. In
addition, HD frame models S24 and S54 can support shuttle stations in order to
attach multiple library strings in a shuttle complex. For more information about a
shuttle complex, see “Structure of the shuttle complex” on page 15.
Notes:
v
If you convert an existing HD frame from a service bay to an expansion frame, a
Capacity on Demand feature (1645 or 1646) is required in order to use the full
capacity of the frame. If an HD frame is ordered to be used as service bay B, it
does not require a Capacity on Demand feature.
v
In order to support mixed media in an HD library with dual accessors, service
bay B must be a model Dxx frame. This configuration requires feature code 1697,
which ensures that the service bays provide both LTO and 3592 HD test slots.
v
When expanding an installed library, an expansion frame is installed at the end
of the library string (
end of the library string refers to the very last frame or, if
requested by the customer, the last frame before service bay B). In order to have
the expansion frame installed somewhere other than the end of the library
string, the IBM service representative must obtain a service contract to uninstall
additional frames as necessary to accommodate the customer's request.
Chapter 1. Introduction
11