HP-UX

[this is also posted in the dummies forum, apologise for duplication]

I have installed a new SCSI drive into an HP6000-SE SCSI tower conencted to an old HP9000. This device cannot be detected by SAM. HOWEVER, when doing an ioscan -f I get:


======================================================================
bc 0 root CLAIMED BUS_NEXUS
bc 1 56 bc CLAIMED BUS_NEXUS Bus Converter
lanmux 0 56/36 lanmux0 CLAIMED INTERFACE HP J2146A - 802.3 LAN
lan 1 56/36.1 lan3 CLAIMED INTERFACE
ext_bus 0 56/52 scsi1 CLAIMED INTERFACE HP 28655A - SE SCSI ID
=7
target 0 56/52.0 target CLAIMED DEVICE
tape 0 56/52.0.0 tape2 CLAIMED DEVICE HP HP35480A
target 6 56/52.1 target CLAIMED DEVICE
disk 5 56/52.1.0 disc3 CLAIMED DEVICE SEAGATE ST34371N
target 4 56/52.3 target CLAIMED DEVICE
disk 3 56/52.3.0 disc3 CLAIMED DEVICE SEAGATE ST32550N
target 5 56/52.4 target CLAIMED DEVICE
disk 4 56/52.4.0 disc3 CLAIMED DEVICE HP C3010M1
target 3 56/52.5 target CLAIMED DEVICE
disk 2 56/52.5.0 disc3 CLAIMED DEVICE HP C2490AM
target 2 56/52.6 target CLAIMED DEVICE
disk 1 56/52.6.0 disc3 CLAIMED DEVICE SEAGATE ST32550N
unknown -1 56/53 UNCLAIMED UNKNOWN HP 28655A - Parallel I
nterface
tty 0 56/56 mux2 CLAIMED INTERFACE MUX
ba 0 60 bus_adapter CLAIMED BUS_NEXUS Core I/O Adapter
lan 0 60/6 lan2 CLAIMED INTERFACE Built-in LAN
processor 0 62 processor CLAIMED PROCESSOR Processor
memory 0 63 memory CLAIMED MEMORY Memory

where the new disk is the ST43471N. Doing an ioscan -u gives:

H/W Path Class Description
========================================
56/36.1 lan
56/52.0.0 tape HP HP35480A
56/52.1.0 disk SEAGATE ST34371N
56/52.3.0 disk SEAGATE ST32550N
56/52.4.0 disk HP C3010M1
56/52.5.0 disk HP C2490AM
56/52.6.0 disk SEAGATE ST32550N
56/56 tty MUX
60/6 lan Built-in LAN

and an ioscan -k:


==========================================
bc
56 bc Bus Converter
56/36 lanmux HP J2146A - 802.3 LAN
56/36.1 lan
56/52 ext_bus HP 28655A - SE SCSI ID=7
56/52.0 target
56/52.0.0 tape HP HP35480A
56/52.1 target
56/52.1.0 disk SEAGATE ST34371N
56/52.3 target
56/52.3.0 disk SEAGATE ST32550N
56/52.4 target
56/52.4.0 disk HP C3010M1
56/52.5 target
56/52.5.0 disk HP C2490AM
56/52.6 target
56/52.6.0 disk SEAGATE ST32550N
56/53 unknown HP 28655A - Parallel Interface
56/56 tty MUX
60 ba Core I/O Adapter
60/6 lan Built-in LAN
62 processor Processor
63 memory Memory

which leaves me banging my head against a wall as to why the drive is undetected. I'll admit that I'm not too skilled in HP-UX hardware and configuration. As a hunch the dual entries of the 28655A Parallel interface in the output of ioscan -f seem suspicious.

I am about to remove the device in question and reboot the machine (this can't be done too ofter as the machine is a production server) to compare the outputs of ioscan before and after.

Any pointers? In advance, you'll save my life (and my hair) if you can help. Thanks:

Doing an ioscan to display the device files (all of which exist and are correct) I get:

target 6 56/52.1 target CLAIMED DEVICE
disk 5 56/52.1.0 disc3 CLAIMED DEVICE SEAGATE ST34371N
/dev/dsk/c0t1d0 /dev/rdsk/c0t1d0
/dev/floppy/c0t1d0 /dev/rfloppy/c0t1d0

for the device I am trying to configure. I am unsure why this device seems to be bound to a *floppy* drive too.

The command pvcreate /dev/rdsk/c0t1d0 fails.

If it is an "old HP9000", it may not support your disk drive. There are patches to various HP-UX releases that include support for various drives. You will need to search to patches for your release of HP-UX to be sure that you are at the right patch level to use the drive.

Another thought is that the drive may be broken. See if the diskinfo command can report on the drive.

Thankyou for the tips. The drive was supplied by a reseller so I hope :-) that it isn't broken. Following conversations of this problem on USENET it has been suggested that the Ultra-SCSI interface of this drive is not compatiable with the HP6000-SE enclosure, the SE standing for "single ended".

Thanks for you help.