https://library.netapp.com/ecm/ecm_download_file/ECMM1280368
See "Running diagnostics tests (controller replacement)", it states "loopback plugs" should be used for testing. It means there should be no "production" cables connected to the replaced MoBo while running the diagnostics tests.
I suspect a field engineer that worked on it plugged the cables back in once the the motherboard has been replaced and started the diagnostics, it caused issues in turn.
I'll be looking at repeating it somewhere in a test environment when possible.
Vladimir
On Mon, Feb 2, 2015 at 5:12 PM, Momonth momonth@gmail.com wrote:
I think I localized the problem only to "NetApp Release 8.0.2P4 7-Mode", ie initiator attached to the filers running this version of OnTAP were affected.
On Mon, Feb 2, 2015 at 4:23 PM, Momonth momonth@gmail.com wrote:
I have a ticket opened with NetApp support, will update the thread once there are any results.
Also, came across this KB - https://kb.netapp.com/support/index?page=content&id=3012956&pmv=prin... I'm now reading and trying to understand how releveant it is in my case.
On Mon, Feb 2, 2015 at 4:15 PM, Borzenkov, Andrei andrei.borzenkov@ts.fujitsu.com wrote:
Actually today on Brocade both pure port and pure WWN zoning are hard zoning. Only mixed mode (some port and some WWN) are soft.
Anyway I still believe the problem is due to initiator ports seeing other targets and trying to take ownership of them which - in case of NetApp - means setting SCSI reservation on them.
-----Original Message----- From: vladimir.zhigulin@gmail.com [mailto:vladimir.zhigulin@gmail.com] On Behalf Of Momonth Sent: Monday, February 02, 2015 6:12 PM To: Basil Cc: Borzenkov, Andrei; toasters@teaparty.net Subject: Re: Motherboard replacement on FAS3270 caused fabric wide issue
Also, it's wort mentioning, all the filers involved are 7M filer, but different releases.
On Mon, Feb 2, 2015 at 3:49 PM, Basil basilberntsen@gmail.com wrote:
Also, you mentioned "hard" zoning- did you mean that literally, like your zones have physical port locations in them?
Yes, something like that:
zone: zone_test 2,2 2,3 2,14 2,15
where "2," - switch ID, "2,3,14,15" - port ID