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For more information on OLAR or OL*, see the following documents:
• To determine whether OLAR or OL* is supported on your system, see the HP Ultra320 SCSI
Host Bus Adapter Support Matrix:
http://docs.hp.com/en/netcom.html#SCSI%20Host%20Bus%20Adapters
• For detailed instructions on using OLAR on HP-UX 11i v1, see Configuring HP-UX for
Peripherals:
http://docs.hp.com/en/oshpux11i.html#System%20Administration
• For detailed instructions on using OL* on HP-UX 11i v2, see the Interface Card OL* Support
Guide:
http://docs.hp.com/en/oshpux11iv2.html#System%20Administration
• For detailed instructions on using OL* on HP-UX 11i v3, see the Interface Card OL* Support
Guide:
http://docs.hp.com/en/oshpux11iv3.html#System%20Administration
IMPORTANT: Superdome systems are not intended for access by users. HP recommends that
Superdome systems only be opened by a qualified HP engineer. Failure to observe this
requirement can invalidate any support agreement or warranty to which the system owner might
otherwise be entitled.
IMPORTANT: If you use OLAR or OL* to add or replace an A7173A adapter, the SCSI ID will
be set at 7 by default. If the SCSI ID for an add-in or replacement adapter needs to be set at some
value other than 7, the mptconfig command can be used to set the SCSI ID after the A7173A
adapter is inserted into the slot and powered on, but before the SCSI cable(s) are connected. See
“About SCSI IDs” (page 24) and “Using mptconfig for Online Configuration” (page 40), for
more information.
Connecting SCSI Peripheral Devices
The A7173A adapter is capable of communicating with Low Voltage Differential (LVD) or Single
Ended (SE) SCSI devices. LVD allows up to 12m cable lengths with multiple SCSI devices, or
25m point-to-point connections.
Important Rules For Connecting SCSI Devices
When you connect SCSI devices to an A7173A or AB290A Host Bus Adapter, the following rules
apply:
• All of the devices connected to each port must be of the same type; for example, you cannot
mix hard disks and removable-media devices on the same port.
• All of the removable-media devices (such as a tape drive, DVD, or CD-ROM) on a SCSI port
must be of the same type and speed. For example, you can connect two or more 320 MB/S
tape drives to a port, but you cannot mix tape drives of different speeds on the same port.
• Each SCSI channel on the A7173A adapter has an internal HD (high density) SCSI connector
and an external VHDCI (very high density cable interconnect) SCSI connector. Do not connect
SCSI devices to both the internal and external SCSI connectors on the same channel.
• If you connect devices with different data transfer rates to the same SCSI channel, the speed
of that channel will be limited to the maximum transfer rate of the slowest device. For
example, if you connect both LVD SCSI devices and SE SCSI devices to the same SCSI
channel, the data transfer rate for that channel will be limited to 40 MB/s, which is the
maximum rate for SE SCSI.
To view a list of supported peripheral devices see the HP Ultra320 SCSI Host Bus Adapter Support
Matrix:
Connecting SCSI Peripheral Devices 17