HP StoreEver MSL2024 Tape Library Getting Started (AK378-96060, December 2012)

8b Connecting the library: parallel SCSI
Attach one end of the parallel SCSI cable to one of
the connectors on the tape drive. Attach the other end
of the cable to the HBA or to the connector on the
previous device on the SCSI bus.
If the tape drive is the last or only device on the SCSI
bus, attach a terminator to the remaining SCSI
connector on the tape drive. Otherwise, attach a SCSI
cable to the next device on the SCSI bus. Make sure
that the last device on the SCSI bus is properly
terminated.
Connect the second tape drive, if applicable.
IMPORTANT: For the library and tape drives
to operate correctly, each SCSI tape drive must
have a SCSI terminator unless the tape drive is
part of a properly terminated chain. This
includes tape drives without an attached SCSI
cable.
NOTE: For optimal performance, a parallel
SCSI tape drive should be the only device on
the bus.
8c Connecting the library: SAS
The SAS cable recommended for use with the library
has four mini-SAS connectors on the tape drive end
with a SAS 4x (IB) or mini-SAS connector on the HBA
end, depending on the connector on your HBA. This
cable can be used to connect up to four tape drives
to a SAS HBA. Any of the four connectors can be used
for any tape drive.
CAUTION: Mini-SAS connectors are keyed.
Do not force a SAS cable's mini-SAS connector
into the tape drive mini-SAS connector because
it might be keyed differently.
CAUTION: SAS signal rates require clean
connections with a minimum number of
connections between the HBA and the library.
Do not use adapters or converters between the
HBA and the library. HP recommends a
maximum SAS cable length of six meters.
Attach the HBA end of the cable to the SAS HBA.
Attach a connector to each tape drive's port A.
The unused ends of a fanout cable are single channel
and not suitable for use with most disk arrays. Use the
other ends to connect tape drives, or coil and secure
them to the rack to minimize stress on the connectors.
NOTE: Each of the tape drives uses one
channel and the cable recommended for use
with the library maps each of the four channels
from the HBA to one channel on the drive end.
You can plug any of the four drive connectors
into any tape drive.
NOTE: If you are connecting the library to a
Blade Server, the Blade Server documentation
provides additional information.
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