Sun Microsystems SL8500 manual Drive and Electronics Module, Tape Drives

Drive and Electronics Module

TABLE 1-1Data Cartridge Capacity (Continued)

Expansion Modules

Module Type	Cartridge Capacity
First storage expansion module	3,176
Second storage expansion module	4,904
Third storage expansion module	6,632
Fourth storage expansion module	8,360
Fifth storage expansion module	10,088

1There are no cartridge storage locations in the Drive and Electronics Module.

2The Customer Interface Module contains 198 storage slots for cleaning and diagnostic cartridges.

Note – This total number of cartridges does not include slots in the cartridge access port (CAP), pass-thru-port.

See Appendix A, “Cartridge Slot Locations” for information on reserved slots and cartridge addresses.

Drive and Electronics Module

The major components of this module include:

■AC power distribution units N+1 (standard) or 2N (optional) (see “Power” on page 17)

■Load sharing DC power supplies that provide power for the tape drives and HandBots

■Electronics control modules (ECM) and cards for library operation (see “Electronics Control Module” on page 7)

■Accessory racks to mount network devices and components, servers, and the service delivery platform

■Slots for 1 to 64 tape drives

Tape Drives

SL8500 library supports from 1 to 64 drives. The interface to these drives is fiber-optic based; meaning Fibre Channel, FICON1, or ESCON2 attachments.

1.Short for Fiber Connection, or Fiber Connectivity—IBM’s fiber optic channel technology that extends the capabilities ESCON. FICON supports full duplex data transfers over longer distances.

2.Short for Enterprise Systems Connection, or Enterprise Systems Connectivity—an IBM fiber optic channel technology that supports half duplex data transfers up to 200 Mb/s.

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