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Introduction and Related Information
SCSI Devices
Chapter 124
SCSI Devices
External mass storage is not supported on the i2000 hp workstations.
LSI LVD UltraII SCSI Controller
On Itanium-based servers, unlike PA-based systems, the LSI LVD
UltraII SCSI controller, part number A5149A, can not boot from targets
with SCSI ID greater than 7. These controllers have the Sub System ID
Bits (SSID) set such that the card is forced into narrow mode.
Specifying Bootable Devices in the LSI BIOS
The LSI BIOS is used to determine which SCSI HBAs are searched for
bootable devices. The LSI BIOS limits this selection to a maximum of
four possible choices, determined by the PCI bus slot order. Any boot
target must reside on one of those default controllers.
NOTE HP-UX will let you install to any device on the system but if the device is
not on one of the default controllers you can not boot from it.
QLogic SCSI Adapter Rates
For the rx9610 and rx4610 servers, some JBOD (Just a Bunch Of Disk)
enclosures contain internal cabling for a slower SCSI rate than newer
disk devices may accept. If an Ultra160 disk accepts the higher rate in an
Ultra2 enclosure, a hang will occur in data transfers. To force the
autonegotiation to use a slower rate, you must configure the SCSI
adapter.
Setting external QLogic SCSI connector for JBODs:
Step 1. Enter Alt-Q when prompted on machine book
Step 2. Choose
Configuration Settings->Host Adapter Settings
Adapter Configuration: Manual