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UNIX for Dummies Questions & Answers
Strange problem.Please Help !
Post 397 by Neo on Thursday 30th of November 2000 11:00:50 PM
12-01-2000
Administrator
If the UNIX kernal crashed (panics) you might not get any error messages because the kernal logging facility might only right to the console. However, you said it 'looks like a power outage when it dies'; so I assume you cannot read a console. Is that right? If you can make sure the console monitor is up and working, if the kernel panics you will see something on the monitor (normally).
I am going to guess that you are having a problem which shuts down the hardware, i.e. the motherboard; because this would kill the video output as well as the disks, etc. Without further information the best guess I can make is a motherboard problem because you say the 'entire system dies like a power outage'.
Motherboards can and do break. Bugs in the bios can cause strange behavior. The SCSI error you post would cause the system to lock-up, but the power, monitor, console would still work. So, if the system is just 'locking up' but the video card works; the next logical place would be the SCSI controller (and you have an error message to back this up.)
The most common cause of SCSI errors is not terminating the ends of the SCSI bus, or having an improper termination in the middle of the bus. So, the first thing to do is to insure that your SCSI bus is configured properly and terminated properly. This is not always easy if you are not a SCSI guru.
Hope this helps get up started. If you have any more clues, please post. We love puzzles here at UNIX.COM
I am going to guess that you are having a problem which shuts down the hardware, i.e. the motherboard; because this would kill the video output as well as the disks, etc. Without further information the best guess I can make is a motherboard problem because you say the 'entire system dies like a power outage'.
Motherboards can and do break. Bugs in the bios can cause strange behavior. The SCSI error you post would cause the system to lock-up, but the power, monitor, console would still work. So, if the system is just 'locking up' but the video card works; the next logical place would be the SCSI controller (and you have an error message to back this up.)
The most common cause of SCSI errors is not terminating the ends of the SCSI bus, or having an improper termination in the middle of the bus. So, the first thing to do is to insure that your SCSI bus is configured properly and terminated properly. This is not always easy if you are not a SCSI guru.
Hope this helps get up started. If you have any more clues, please post. We love puzzles here at UNIX.COM
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LEARN ABOUT HPUX
vparutil
vparutil(1M) vparutil(1M) NAME
vparutil - get and set SCSI parameters for SCSI controllers from a virtual partition SYNOPSIS
dev_path dev_path dev_path scsi_id] scsi_rate] DESCRIPTION
The command gets and sets SCSI parameters for SCSI controllers within a running virtual partition. When setting the SCSI parameters using the option, the virtual partition which owns the specified SCSI controller must be in the down state. If not, the command will fail with the appropriate error code. The SCSI parameters for a given SCSI controller must first be set (from the firmware BCH prompt or using the option) before the parameters can be retrieved using the option. The command is allowed on Itanium(R)-based platforms for compatibility. No action is taken for the command. Options recognizes the following command-line options: Deletes an entry for the specified SCSI controller at dev_path from the SCSI table. Gets the SCSI parameters for the specified SCSI controller at dev_path. Sets the SCSI parameters for the specified SCSI controller at dev_path. Operands recognizes the following command-line operands: dev_path The device path of the SCSI controller. id The SCSI ID for the specified controller (defaults to 7). rate The SCSI rate for the specified controller. This parameter can have one of two values: for the corresponding fast wide and ultra wide SCSI interfaces. Note For managing SCSI controllers, use corresponding SCSI utilities. For further information refer to SECURITY RESTRICTIONS
This command is restricted to processes owned by superuser. When virtual partition flexible administrative capability is enabled, only a Designated-Admin vPar can set SCSI parameters for SCSI con- trollers. EXAMPLES
Set the SCSI ID for controller at 0/0/2/0 to 3 with the fast wide rate: RETURN VALUE
Successful. Invalid SCSI controller specification. Invalid SCSI ID. Could not communicate with virtual partition monitor. Virtual partition which owns SCSI controller is not in down state. Internal firmware call failed. Other error. AUTHOR
was developed by the Hewlett-Packard Company. SEE ALSO
vparadmin(1M), vparboot(1M), vparcreate(1M), vparconfig(1M), vpardump(1M), vparefiutil(1M), vparenv(1M), vparextract(1M), vparmodify(1M), vparreloc(1M), vparremove(1M), vparreset(1M), vparstatus(1M), vparresources(5), vpartition(5), vpmon(5). vparutil(1M)