HP-UX undetected disk drive


 
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# 1  
Old 10-08-2001
HP-UX undetected disk drive

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:
# 2  
Old 10-08-2001
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.
# 3  
Old 10-09-2001
Hi

try ioscan -fnC disk


may work not sure

regards
praful
 
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