Tandberg Data Magnum 224, Руководство по эксплуатации продукта, Страница: 28 / 278

10
P
RODUCT
M
ANUAL
1017472
C
HAPTER
2—I
NSTALLING THE
L
IBRARY
O
BTAINING
A
CCESSORIES AND
E
QUIPMENT
Make sure that you have all the accessories and equipment for library
installation and operation, as indicated in the following table. If necessary, you
can purchase these items from Tandberg Data (see
“Contacting Tandberg Data
Corporation” on page iii ).
! ! ! !
Important
LTO-2, LTO-3, and LTO-4 SCSI tape drives are Ultra 160 SCSI
devices and require a minimum Ultra 160 non-RAID SCSI host
bus adapter card, Ultra 160 rated SCSI cabling, and an Ultra 3
Active SCSI terminator.
Table 2-1
Obtaining accessories and equipment
Accessories and Equipment
Rack-Mount
Hardware The library is designed to be installed in a standard 4-post, 19-inch rack, using 2 units
(2U) of rack space. Rack-mount hardware for a 4-post rack is provided with the library.
Note: A 2-post rack will
not
support the library .
SCSI Cable One high-density (HD), wide (68-pin), 2-meter
LVD SCSI cable is provided with the library.
Note: If your SCSI controller has a 68-pin very
high-density (VHDCI) connector, you will need
to obtain a VHDCI-to-HD SCSI cable.
HD Connector
VHDCI Connector
If you want to use your own SCSI cable(s), follow these guidelines:
ƒ
Use high-density, wide (68-pin) Ultra 160 SCSI cables that conform to SCSI-3
specifications. To comply with the regulations and standards listed in
Appendix A , all
SCSI cables used with the library must be properly shielded.
ƒ
The maximum allowable length of an LVD SCSI bus is 12 meters (39 feet) if you have
more than two devices on the bus.
SCSI Bus
Terminator One wide Ultra 3 Active SCSI terminator is provided with the library. If you want to use
your own terminator, use a high-quality Ultra 3 rated Active SCSI terminator. An
appropriate terminator is stamped with Ultra 3 or LVD 160 and “Active Negation.”
Important! LTO-2, LTO-3, and LTO-4 SCSI tape drives require an Ultra 3 or LVD 160
terminator to function properly on the SCSI bus. An inadequate terminator will result in
various SCSI bus issues, including bus hangs and Read/Write failures.
Fibre Channel
Cable No Fibre Channel cables are included with the library. The number of optical fiber cables
required for attaching the library to a Fibre Channel network depends on how many tape
drives are installed.
Use either 50-micron or 62.5-micron multi-mode optical fiber cables with dual
single-channel (LC) connectors.
ƒ
50-micron multi-mode optical fiber cables must comply with the 400-M5-SN-I
classification as specified in the Fibre Channel standard (FC-PI-2).
ƒ
62.5-micron multi-mode optical fiber cables must meet the 400-M6-SN-I
classification.
Note: The length of 62.5 micron multi-mode cables should not exceed 70 meters.