Q24/Q48 Tape Library
Installation and Operations Manual
2
Installation
This section provides instructions for installing the Q24/Q48 Tape Library.
2.1
Location Requirements
Criteria
Definition
Rack requirements
Standard 19-inch rack with vertical space of 2U available for the Q24 or vertical
space of 4U available for the Q48.
Room temperature
10-35
°
C (50-95
°
F)
Power source
AC power voltage: 100-127 VAC; 200-240 VAC
Line frequency: 50-60 Hz
Place the library near to an AC outlet.
The AC power cord is the library’s main AC disconnect device and must be easily
accessible at all times.
Air quality
Place the library in an area with minimal sources of particulate contamination.
Avoid areas near frequently used doors and walkways, stacks of supplies that
collect dust, printers, and smoke-filled rooms.
Excessive dust and debris can damage tapes and tape drives.
Humidity
20-80 percent relative humidity non-condensing
Clearance
Back: Minimum of 15.4 cm (6 inches)
Front: Minimum of 30.8 cm (12 inches) – for mail slot
Minimum of 60 cm to remove magazines (24 inches)
Sides: Minimum of 5.08 cm (2 inches)
Table 1 Location requirements
For further information, see Section 7, Technical specifications
2.2
Serial Attached SCSI (SAS) Requirements
Serial Attached SCSI (SAS) is a computer bus technology mainly used to transfer data to and from
storage devices, including disk drives and tape drives. SAS is designed to transfer data at up to
6 gigabits per second.
SAS uses serial connections, with a direct connection between the host server and each of the storage
devices. This eliminates the need to configure SCSI buses and assign SCSI IDs, as was required for
parallel SCSI devices.
Most SAS host bus adapters (HBA) ports have four SAS channels. A tape drive uses one channel, so
each HBA port can support up to four tape drives via a fan-out cable. You can use a cable with one
connector on each end, but only one channel will be used.
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