StorageTek Host Software Component 6 User Manual

1st ed., 6/30/04 - 312579601

The StorageTek Automated Cartridge System (ACS), called the library, is an automated 
storage and retrieval facility for tape cartridges. The library incorporates the Host 
Software Component (HSC) to accomplish automated mounting and dismounting of 
resident cartridges for the library-attached cartridge transports. The library may be 
attached to a maximum of 16 CPUs (hosts) with an HSC installed on each attached host 
system. 

The library consists of four major elements: 

• Host Software Component (HSC)— functions as the interface between the host 

operating system, and if applicable, a tape management interface (TMI).

• Library Storage Module (LSM)— contains storage cells for tape cartridges. The 

storage capacity of an LSM depends upon the LSM model. There are several LSM 
models available: 

- Standard (Model 4410) 

- PowderHorn (Model 9310)

- WolfCreek (Model 9360), which includes: 

- 9360-100 (1,000 cartridge capacity) 
- 9360-075 (750 cartridge capacity)
- 9360-050 (500 cartridge capacity)

- TimberWolf (Model 9740)

- StreamLine (Model 8500). 

An attached Library Control Unit (LCU) with associated electronics controls LSM robot 
movement. The LSM access door, contains a Cartridge Access Port (CAP), for entering or 
removing tape cartridges from the LSM. The types of CAPs available, depending upon 
how the LSMs are configured in an ACS, include: 

- Standard and Enhanced CAP used in standard (4410) and PowderHorn (9310) 

LSMs. 

- WolfCreek (9360) standard 20-cell and optional 30-cell CAPs. The WolfCreek 

LSM holds approximately 500, 750, or 1000 cartridges depending on the 
number of cartridge drives, pass-thru ports, and CAPs installed.