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determine disk controllers

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Regular Advisor

determine disk controllers

How do I determine the # of disk controllers I have? (I imagine they s/b in the ioscan - but not sure as to what they are referred to). Also - will there be any 32/64 bit issues with these controllers when we upgrade our HP9000 K360 from o/s 10.20 (32 bit) to b.11.11 (64 bit). Thanks for your help.
Honored Contributor

Re: determine disk controllers

You can run the command:

# ioscan -fnkC ctl and that will give you something like:

Class I H/W Path Driver S/W State H/W Type Description
ctl 0 10/0.7.0 sctl CLAIMED DEVICE Initiator
ctl 1 10/12/5.7.0 sctl CLAIMED DEVICE Initiator

(sorry if the formatting gets messed up)

You can then run # ioscan -fk to show all devices and go back and see what the controller is listed as.

For instance 10/0.7.0 is the initiator for the following:
ext_bus 0 10/0 c720 CLAIMED INTERFACE GSC built-in Fast/Wide SCSI Interface

As far as the cards go: Any cards will be either HP-PB or HSC and I am not aware of any problems with them going from 10.20 to 11.x.


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Honored Contributor

Re: determine disk controllers

Hi Byran

ioscan -fk | grep SCSI will give you the scsi controllers ,

sam--->peripheral devices ---> cards will give you the list of cards

stm or xstm will also give you the controllers ,

There is no drive available for PCI cards on HPUX 64 bit , so if u have a 100mbps pci controller that wont work , we used the default 10mbps as we were not using that for a production machine.

Manoj Srivastava
Regular Advisor

Re: determine disk controllers

thanks. ok then - how do I determine what controllers are responsible for what disks or volume groups?
Jeff Schussele
Honored Contributor

Re: determine disk controllers

Hi Bryan,

Run ioscan again thusly

ioscan -fnC disk

Then compare the HW path of the ctrlr to the disks. The disks that have the same starting path as the ctrlr are under that ctrlr.

PERSEVERANCE -- Remember, whatever does not kill you only makes you stronger!
John Carr_2
Honored Contributor

Re: determine disk controllers


ioscan -fnCdisk > /tmp/test
ioscan -fnCctl >> /tmp/test
sort +2 test

the output will have the disks with the controllers in order.

Regular Advisor

Re: determine disk controllers