HP Surestore DVD-ROM Tape Array Module - Manual (Page 6)

latest version of this document can be downloaded from / / w w w . h p . c o m / s u p p o r t /
t a p e a r r a y .
You will need to order the correct length and SCSI connector type cables and terminators to
suit your particular configuration. Cable and terminators options are listed at the HP tape
arraysupportwebsite: / / w w w . h p . c o m / s u p p o r t / t a p e a r r a y , and can be ordered from
your local HP sales office.
SCSI host bus adapter
Up to four host servers can be attached to the HP Surestore Tape Array 5300. Each server
needs a properly installed and configured SCSI host adapter or a built-in SCSI controller on
the computer's motherboard (SCSI-2 or SCSI-3 compliant). Connectivity information can be
found on our World Wide Web site: / / w w w . h p . c o m / g o / c o n n e c t . Check the server
documentation for the specification of any built-in SCSI channels. Do not connect to a RAID
controller channel; these are for disk drives only.
HP Surestore DVD-ROM rack-ready drives and SCSI
The HP Surestore DVD-ROM rack-ready drive is a fast, narrow, single ended SCSI peripheral,
therefore, its maximum throughput (burst rate) is 20 MB/sec. However, incorporated into the
HP Surestore DVD-ROM rack-ready module, the DVD device can be connected to an LVD SCSI
bus without affecting the performance of any native LVD devices on that bus, as long as there
are no other single ended devices on the bus. For example:
• If you connect an LVD SCSI peripheral with a transfer rate of 80 MB/sec to the same bus as
the DVD device, which has a transfer rate of 20 MB/sec and is a narrow single ended
device, the performance of both devices is unaffected.
• However, if you connect another single ended device, such as an HP Surestore DAT 24
tape drive, to the same bus as the DVD device the bus performance will be restricted.
All HP rack-ready devices connect to the rack enclosure through a blind-mate, easy-plug
connector. The connectors on the back of the rack enclosure are all 68-pin. To connect a
device in your rack enclosure with the host system, you need a 68-pin to 68-pin, LVDS-
compliant cable that is compatible with the type of bus used by the host system. For device-to-
device connection in the rack use a (68-pin to 68-pin) 0.5 meter cable.
If your drive is the only SCSI device or if it is the last SCSI device in a daisy-chain of devices,
you must install a terminator.
Cable and terminator options are listed at the HP tape array support web site:
/ / w w w . h p . c o m / s u p p o r t / t a p e a r r a y , and can be ordered from your local HP sales
office.