Sun Microsystems SL8500 manual Nearline Control Solutions, Client System Component

Models: SL8500

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Nearline Control Solutions

Library Management Software

Note – The same Sun StorageTek library management software currently used by the customer today can be upgraded to support the SL8500 library.

Nearline Control Solutions

Some of the Sun suite of Nearline Control Solutions (NCS) software products are described in the sections below.

Client System Component

MVS/CSC provides client functions and communications between an MVS host and the Library Control System (LCS) or server on a non-MVS host. MVS/CSC allows the MVS client to perform automatic tape handling on a Sun library in addition to sharing multiple host systems (both IBM and non-IBM).

The MVS/CSC can communicate with LibraryStation in an MVS-only environment, or the SMC and the Sun StorageTek HTTP server can provide communication between MVS hosts.

Storage Management Component

Storage Management Component (SMC) is the interface between IBM’s OS/390 and z/OS operating systems and a Sun library. SMC performs the allocation processing, message handling, and SMS processing for the NCS solution. SMC resides on the MVS host system with HSC and/or MVS/CSC, or on a remote system using the Sun StorageTek HTTP server to communicate with the HSC. SMC communicates with HSC or MVS/CSC to determine policies, volume locations, and drive ownership.

Note – SMC is a required NCS component.

Sun StorageTek HTTP Server

Sun StorageTek’s HTTP Server for OS/390 and z/OS optionally provides the middleware to allow communication between the SMC (client) and a remote HSC subsystem (server). The HTTP server executes as a separate subsystem on the MVS host where the remote HSC subsystem resides.

Host Software Component

When an SL8500 library is in a stand-alone configuration with an MVS host, the host must run a version of Sun’s Host Software Component (HSC) along with the Storage Management Component (SMC).

Sun’s HSC and SMC:

Influence allocations

96154 • Revision K

Chapter 3 Host to Library Communications 43

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Sun Microsystems SL8500 manual Nearline Control Solutions, Client System Component, Storage Management Component