What site support subsystem (SSS) device maintains a replica if all application specific and commercially available software required for restoration of any system processor?

• A. Toolhost site support subsystem (SSS) external hard drive
• B. Local backup server (LBS)
• C. Redundant Array of Disks (RAID)
• D. Mainframe restore archive (MRA)

Answer: (A)

The need here is for a ready-to-use replica of all software required to restore any system processor. A site support subsystem is designed to provide exactly that capability, keeping the restoration software in a portable, ready-to-access form. The Toolhost SSS external hard drive is the dedicated medium for this purpose, holding the full set of application-specific and commercially available software needed to rebuild systems quickly after a failure.

Local backup servers store data backups but not necessarily the complete restoration software set for every processor. RAID is about storage redundancy and performance, not maintaining a software restore replica. A mainframe restore archive serves a different scope, typically not covering all system processors in this context.