topic Re: Cannot see external disk in Operating System - HP-UX

Cannot see external disk

sk800i — Thu, 27 Mar 2008 08:27:44 GMT

I have 36GB internal for rx1600 with 11.23. When I add the external disk (9G) that connect to the back SCSI interface but the server can't detect it using ioscan -fnC disk or SAM. Only internal 36GB HDD and DVD ROM can be found.

I try to boot to EFI mode, it can detect the external disk. What's matter?

Re: Cannot see external disk

YAQUB_1 — Thu, 27 Mar 2008 08:51:40 GMT

Hi SK800i,

Send me Ur ioscan & ioscan -fnC disk output???

Thanks--Yaqub
HP Support!!!

Re: Cannot see external disk

Torsten. — Thu, 27 Mar 2008 08:54:36 GMT

What type of disk / disk chassis is it?

Is there a termination in place?

Re: Cannot see external disk

sk800i — Thu, 27 Mar 2008 09:05:37 GMT

Hi Yaqub,

There is ioscan output:

# ioscan -fnC disk
Class I H/W Path Driver S/W State H/W Type Description
============================================================================
disk 0 0/0/2/0.0.0.0 sdisk CLAIMED DEVICE TEAC DV-28E-C
/dev/dsk/c0t0d0 /dev/rdsk/c0t0d0
disk 1 0/1/1/0.0.0 sdisk CLAIMED DEVICE HP 36.4GMAU3036NC
/dev/dsk/c2t0d0 /dev/rdsk/c2t0d0
/dev/dsk/c2t0d0s1 /dev/rdsk/c2t0d0s1
/dev/dsk/c2t0d0s2 /dev/rdsk/c2t0d0s2
/dev/dsk/c2t0d0s3 /dev/rdsk/c2t0d0s3

I'm using Sun MicroSystems single external disk (9G) SCSI interface connect to rear side of rx1600 server SCSI port.

--SK800i

Re: Cannot see external disk

sk800i — Thu, 27 Mar 2008 09:06:29 GMT

The external HDD SCSI ID is 5

Re: Cannot see external disk

Naveen M — Thu, 27 Mar 2008 09:21:24 GMT

Please send the output of the following command.

# ioscan -funC ext_bus

Re: Cannot see external disk

YAQUB_1 — Thu, 27 Mar 2008 09:22:49 GMT

Hi SK800i,

ioscan -fnC disk can not detect any external disk, send me ioscan output.

Thanks--Yaqub
HP Support!!!

Re: Cannot see external disk

Grayh — Thu, 27 Mar 2008 09:35:29 GMT

run the command "insf -e" couple of times and then check for if it detectes in ioscan.

If still it is not detected then check if it is detected in

echo "map selall info;wait infolog" | cstm

and still if not the disk might be DOA.... replace it.

Re: Cannot see external disk

sk800i — Thu, 27 Mar 2008 09:42:51 GMT

Hi

This is "ioscan -funC ext_bus" result

# ioscan -funC ext_bus
Class I H/W Path Driver S/W State H/W Type Description
========================================================================
ext_bus 0 0/0/2/0.0 side CLAIMED INTERFACE IDE Primary Channel
ext_bus 1 0/0/2/0.1 side CLAIMED INTERFACE IDE Secondary Channel
ext_bus 2 0/1/1/0 mpt CLAIMED INTERFACE SCSI Ultra320
/dev/mpt2
ext_bus 3 0/1/1/1 mpt CLAIMED INTERFACE SCSI Ultra320
/dev/mpt3

This is "ioscan" result

# ioscan
H/W Path Class Description
=======================================================
root
0 ioa System Bus Adapter (1229)
0/0 ba Local PCI-X Bus Adapter (122e)
0/0/1/0 OO USB OHCI Interface
0/0/1/1 OO USB OHCI Interface
0/0/1/2 OO USB EHCI Interface
0/0/2/0 sideba CMD IDE controller
0/0/2/0.0 ext_bus IDE Primary Channel
0/0/2/0.0.0 target
0/0/2/0.0.0.0 disk TEAC DV-28E-C
0/0/2/0.0.7 target
0/0/2/0.0.7.0 ctl Initiator
0/0/2/0.1 ext_bus IDE Secondary Channel
0/0/2/0.1.7 target
0/0/2/0.1.7.0 ctl Initiator
0/0/3/0 lan Intel PCI Pro 10/100Tx Server Adapter
0/1 ba Local PCI-X Bus Adapter (122e)
0/1/1/0 ext_bus SCSI Ultra320
0/1/1/0.0 target
0/1/1/0.0.0 disk HP 36.4GMAU3036NC
0/1/1/0.7 target
0/1/1/0.7.0 ctl Initiator
0/1/1/1 ext_bus SCSI Ultra320
0/1/1/1.7 target
0/1/1/1.7.0 ctl Initiator
0/1/2/0 lan HP PCI 1000Base-T Core
0/2 ba Local PCI-X Bus Adapter (122e)
0/3 ba Local PCI-X Bus Adapter (122e)
120 processor Processor
250 ba Core I/O Adapter
250/0 ipmi IPMI Controller
250/1 tty Built-in RS232C
250/2 acpi_node Acpi Hardware

--SK800i

Re: Cannot see external disk

Torsten. — Thu, 27 Mar 2008 09:55:51 GMT

What is the scsi type of this disk (ultra/ultra2 ...)?

Try

# mptconfig /dev/mpt3

Re: Cannot see external disk

sk800i — Thu, 27 Mar 2008 13:43:31 GMT

Hi Torsten,

The external HDD shall UltraSCSI only. I believe it has not UltraSCSI 2 or 320. However, there should be ok as long as slow performance, right?

mtpconfig /dev/mpt3 result

# mptconfig /dev/mpt3

Scan For Devices ...

---- ADAPTER INFORMATION -----------------------------------------------------

Device File : /dev/mpt3
Hardware Path : 0/1/1/1

---- BUS PARAMETERS ----------------------------------------------------------

Initiator SCSI ID : 7
SCSI Bus Rate : Ultra320
SCSI Bus Width : Wide

---- CHANNEL CAPABILITIES ----------------------------------------------------

Req/Ack Offset : 127
Bus Mode : Single Ended
Quick Arbitration Selection : Enabled
DT Clocking : Enabled
Packetized : Enabled

---- TARGET PARAMETERS -------------------------------------------------------
Target Description Firmware In Use In Use
Id Version Rate Width
------------------------------------------------------------------------------
No Targets

------------------------------------------------------------------------------

Re: Cannot see external disk

Torsten. — Thu, 27 Mar 2008 13:47:28 GMT

The scsi controller does not see the disk.

A couple of choices:

- bad disk
- bad cable
- bad terminator
- bent pin
...

Re: Cannot see external disk

sk800i — Thu, 27 Mar 2008 13:52:38 GMT

Ohhh... I try to replace the HDD again because I replace it before.

Re: Cannot see external disk

sk800i — Fri, 28 Mar 2008 00:59:45 GMT

Hi,

I replace a new one but still cannot see the external HDD. Any method to solve?

Re: Cannot see external disk

sk800i — Fri, 28 Mar 2008 01:02:03 GMT

EFI mode can see the pun5 external disk 20MB/s, while the pun0 internal 36GB disk 320MB/s