topic Re: fcd cards getting lots of interrupts in Operating System - HP-UX

fcd cards getting lots of interrupts

Rick Garland — Thu, 03 Feb 2005 12:04:01 GMT

Hi all:

L3000-6x runninf HPUX 11.11

I have lost all connections to my SAN. All other systems are OK. Doing the fcmsutil shows thousands (and growing) interrupts with still no connections.

Re: fcd cards getting lots of interrupts

Henk Geurts — Thu, 03 Feb 2005 12:06:48 GMT

did you reset the FCadapter?
# fsmsutil /dev/td reset

regards.

Re: fcd cards getting lots of interrupts

Rick Garland — Thu, 03 Feb 2005 12:11:31 GMT

Yes, The latest Mass Storage patches were installed, the reset was issued. Still seeing the interrupts build up at a fast pace.

Re: fcd cards getting lots of interrupts

Henk Geurts — Thu, 03 Feb 2005 12:17:41 GMT

can you post
fcmutil /dev/td output
ioscan -fn

Re: fcd cards getting lots of interrupts

Rick Garland — Thu, 03 Feb 2005 12:21:56 GMT

Here is the fcmsutil /dev/fcd0 output

Vendor ID is = 0x001077
Device ID is = 0x002312
PCI Sub-system Vendor ID is = 0x00103c
PCI Sub-system ID is = 0x0012ba
PCI Mode = PCI 66 MHz
ISP Code version = 3.2.165
ISP Chip version = 3
Topology = PTTOPT_FABRIC
Link Speed = 2Gb
Local N_Port_id is = 0x611213
Previous N_Port_id is = None
N_Port Node World Wide Name = 0x50060b00001d2555
N_Port Port World Wide Name = 0x50060b00001d2554
Switch Port World Wide Name = 0x2012080088605263
Switch Node World Wide Name = 0x1000080088605263
Driver state = ONLINE
Hardware Path is = 0/10/0/0
Maximum Frame Size = 2048
Driver-Firmware Dump Available = NO
Driver-Firmware Dump Timestamp = N/A

Re: fcd cards getting lots of interrupts

Rick Garland — Thu, 03 Feb 2005 12:38:10 GMT

I am attaching the 'fcmsutil /dev/fcd0 stat' output.

Re: fcd cards getting lots of interrupts

Henk Geurts — Thu, 03 Feb 2005 12:39:18 GMT

nothing strange there...
assuming an ioscan shows claimed, can the SAN guys check the WWPN on their side?
otherwise no ideas left..
do you have an support contract for this machine...i suggest you use it...

good luck.

Re: fcd cards getting lots of interrupts

Rick Garland — Thu, 03 Feb 2005 12:41:52 GMT

This is the problem - the devices were there yesterday as CLAIMED. Then they went NO_HW. On reboot/resert/patch install/etc. the ioscan does not show the devices at all anymore.

Re: fcd cards getting lots of interrupts

Rick Garland — Thu, 03 Feb 2005 12:53:28 GMT

Checking the WWPN on the SAN shows all OK. The switches show logged in, there is activity, no errors, etc. These are McData DS24 port switches. The disk devices are from a SYMM 8830.

Have placed a call to HP and EMC but HP and EMC seem to have the habit of blaming each other.
I admit all looks OK but something is not.

So original question - what would cause the numerous interrupts on the FC cards?

Re: fcd cards getting lots of interrupts

Rick Garland — Thu, 03 Feb 2005 12:57:02 GMT

BTW, the FC cards are A6826A cards.

Re: fcd cards getting lots of interrupts

Dineshkumar Surpur — Mon, 13 Jun 2005 14:37:28 GMT

Any solution, we too have the same issue.

Re: fcd cards getting lots of interrupts

Rick Garland — Mon, 13 Jun 2005 15:03:55 GMT

YES, thanks for bringing this up so I can update.

A new zone was created that was 'stepping on' a previously configured zone. This caused much traffic and interfered with the normal operations of the zone that was 'stepped on'.

Since the zone we 'stepped on' was for the tape backup library, this did not turn out to be a critical issue. We did backups manually for 1 night but the next day it was discovered and fixed.

Re: fcd cards getting lots of interrupts

Rick Garland — Mon, 13 Jun 2005 16:02:18 GMT

Closing. Many thanks to all!