Resetting SCSI devices

[Frank Maes_1]

When i try to install some soft on a new HP unix server the scripts sometimes stop and i frequently get the message "resetting scsi devices" in the /var/adm/syslog/syslog.log

What can be the problem ? SCSI-controller and DVD player have already been replaced.

p.S. This thread has been moevd from General to HP-UX > sysadmin. - Hp Forum moderator

[Sanjay_6]

Hi Frank,

Check the cables / terminators. Hope they are not loose / faulty, which could be the cause of the reset.

Hope this helps.

Regds

[Frank Maes_1]

I will check the cables and terminators tomorrow but i don't think that's the problem.

We will see

[Vincent Fleming · Accepted solution]

You don't say what is on the bus that the resets are coming from...

If it's the bus with the DVD on it, then it is most likely it's the cabling or termination.

If it's another bus (with disk drives on it, for example), then it could also be a disk going bad.

Good luck!

[Frank Maes_1]

I always get the message on bus 4 & 5 but the technician from HP could not tell me what's on that bus. How can I find out what's on that bus ?

[Frank Maes_1]

I did a diskdump on every disk (internal & external) but there's nothing wrong, at least no IO-errors.

[Vincent Fleming]

Post a excerpt of your syslog and a "ioscan -fnC disk" - we should be able to see which bus it is and what's on that bus from that.

[Frank Maes_1]

We found out the cause of the reset. There were 2 terminators missing on the PCI cards.

Thx,
Frank