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Connectivity
The libraries include an embedded small computer system interface (SCSI) controller that
supports both single-ended, low voltage differential (LVD) and high voltage differential
(HVD) UltraSCSI. You do not need additional interface cards to support synchronous
transfer rates up to 40 MB/s (native).
StorageTek has designed the libraries to make the transition from SCSI to Fibre Channel
as easy as possible. You can convert the SCSI library (LVD only) and drives to Fibre
Channel through an optional Fibre Channel router mounted either internal or external to
the library. The L40 and L80 are customer upgradable, and the L20 is field upgradable by
an authorized partner or StorageTek service call. In addition, once the Fibre Channel
control path is released, you can upgrade the library as other Fibre Channel drives
become available.
The library interface is either HVD or LVD SCSI or, with the addition of an optional
Fibre Channel router card, Fibre Channel-to-SCSI LVD. The Fibre Channel router
converts the library and SCSI signals to Fiber Channel protocol. One router card
converts up to four drives. The second router (L80 only) converts the additional drives.
In addition, two external Fibre Channel routers are available—one supports up to four
drives, the other supports eight drives (L80 only). Properly terminate each SCSI bus with
an LVD or LVD/SE multimode terminator.
In addition to the internal fibre channel router card, two external routers are available.
The SN3300 Fibre Channel Router supports up to four drives, the SN3400 Multi-
protocol Router supports up to eight drives and is commonly used with the L80. Two
SN3300 routers may also be used with the L80 to support up to eight drives.
Table 5-1. Compatible Drives and Interfaces
Drive Name
DLT 8000
Super DLT (220 and 320)
Seagate Ultrium LTO
IBM Ultrium LTO
HP Ultrium LTO
MT9104
Interface
1
HVD
Yes
Yes
Yes
3
Yes
4
Yes
Seventh Edition
5
2
LVD
Yes
Yes
Yes
Yes
Yes
5-1
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