Linux on 390 Port <[email protected]> wrote on 04/05/2011 02:51:09 
PM:

> From: Rogério Soares <[email protected]>
> To: [email protected]
> Date: 04/05/2011 02:55 PM
> Subject: read-only
> Sent by: Linux on 390 Port <[email protected]>
> 
> Listeners, i still looking for solutions for read-only, i found a lot of
> this errros on messages... there is a way to find why the adapters is
> resetting? i can't find any valueable information.. i already see for
> storage problems, san problems... update kernel, lvm package and 
multipath
> too... ... any tip  to debug this error? i'm using sles10 sp3, but get 
this
> error with sp1 too...
> 
> 
> warn-20110324.bz2:Mar 23 16:40:51 orap103 kernel: zfcp: resetting unit
> 0x4070405c00000000
> warn-20110324.bz2:Mar 23 16:40:51 orap103 kernel: zfcp: host/bus reset
> because of problems with unit 0x4070405c00000000
> warn-20110324.bz2:Mar 23 16:40:52 orap103 kernel: zfcp: The adapter 
0.0.1734
> reported the following characteristics:
> warn-20110324.bz2:Mar 23 16:40:52 orap103 kernel: zfcp: Switched fabric
> fibrechannel network detected at adapter 0.0.1734.
> warn-20110324.bz2:Mar 23 16:40:52 orap103 kernel: zfcp: port erp failed
> (adapter 0.0.1734, wwpn=0x500507630a0b0485)
> warn-20110324.bz2:Mar 23 16:54:14 orap103 kernel: zfcp: resetting unit
> 0x4070405c00000000
> warn-20110324.bz2:Mar 23 16:54:14 orap103 kernel: zfcp: host/bus reset
> because of problems with unit 0x4070405c00000000
> warn-20110324.bz2:Mar 23 16:54:15 orap103 kernel: zfcp: The adapter 
0.0.1734
> reported the following characteristics:
> warn-20110324.bz2:Mar 23 16:54:15 orap103 kernel: zfcp: Switched fabric
> fibrechannel network detected at adapter 0.0.1734.
> warn-20110324.bz2:Mar 23 16:54:15 orap103 kernel: zfcp: port erp failed
> (adapter 0.0.1734, wwpn=0x500507630a0b0485)
> warn-20110324.bz2:Mar 23 17:00:05 orap103 kernel: zfcp: resetting unit
> 0x4070405c00000000
> warn-20110324.bz2:Mar 23 17:00:05 orap103 kernel: zfcp: resetting unit
> 0x4071405300000000
> warn-20110324.bz2:Mar 23 17:00:05 orap103 kernel: zfcp: host/bus reset
> because of problems with unit 0x4070405c00000000
> warn-20110324.bz2:Mar 23 17:00:06 orap103 kernel: zfcp: The adapter 
0.0.1734
> reported the following characteristics:
> warn-20110324.bz2:Mar 23 17:00:06 orap103 kernel: zfcp: Switched fabric
> fibrechannel network detected at adapter 0.0.1734.
> warn-20110324.bz2:Mar 23 17:00:06 orap103 kernel: zfcp: port erp failed
> (adapter 0.0.1734, wwpn=0x500507630a0b0485)
> warn-20110324.bz2:Mar 23 18:43:09 orap103 kernel: zfcp: resetting unit
> 0x4070405c00000000
> warn-20110324.bz2:Mar 23 18:43:09 orap103 kernel: zfcp: host/bus reset
> because of problems with unit 0x4070405c00000000
> warn-20110324.bz2:Mar 23 18:43:10 orap103 kernel: zfcp: The adapter 
0.0.1734
> reported the following characteristics:
> warn-20110324.bz2:Mar 23 18:43:10 orap103 kernel: zfcp: Switched fabric
> fibrechannel network detected at adapter 0.0.1734.
> warn-20110324.bz2:Mar 23 18:43:10 orap103 kernel: zfcp: port erp failed
> (adapter 0.0.1734, wwpn=0x500507630a0b0485)
> warn-20110324.bz2:Mar 23 18:47:02 orap103 kernel: zfcp: resetting unit
> 0x4070405c00000000
> warn-20110324.bz2:Mar 23 18:47:02 orap103 kernel: zfcp: host/bus reset
> because of problems with unit 0x4070405c00000000
> warn-20110324.bz2:Mar 23 18:47:03 orap103 kernel: zfcp: The adapter 
0.0.1734
> reported the following characteristics:
> warn-20110324.bz2:Mar 23 18:47:03 orap103 kernel: zfcp: Switched fabric
> fibrechannel network detected at adapter 0.0.1734.
> warn-20110324.bz2:Mar 23 18:47:03 orap103 kernel: zfcp: warning: failed
> gid_pn nameserver request for wwpn 0x500507630a0b0485 for adapter 
0.0.1734
> warn-20110324.bz2:Mar 23 18:47:03 orap103 kernel: zfcp: port erp failed
> (adapter 0.0.1734, wwpn=0x500507630a0b0485)
> warn-20110324.bz2:Mar 23 18:50:21 orap103 kernel: zfcp: resetting unit
> 0x4070405c00000000
> warn-20110324.bz2:Mar 23 18:50:21 orap103 kernel: zfcp: host/bus reset
> because of problems with unit 0x4070405c00000000
> warn-20110324.bz2:Mar 23 18:50:22 orap103 kernel: zfcp: The adapter 
0.0.1734
> reported the following characteristics:
> warn-20110324.bz2:Mar 23 18:50:22 orap103 kernel: zfcp: Switched fabric
> fibrechannel network detected at adapter 0.0.1734.
> warn-20110324.bz2:Mar 23 18:50:22 orap103 kernel: zfcp: port erp failed
> (adapter 0.0.1734, wwpn=0x500507630a0b0485)
> warn-20110324.bz2:Mar 24 18:32:28 orap103 kernel: zfcp: resetting unit
> 0x4070405c00000000
> warn-20110324.bz2:Mar 24 18:32:28 orap103 kernel: zfcp: host/bus reset
> because of problems with unit 0x4070405c00000000
> warn-20110324.bz2:Mar 24 18:32:29 orap103 kernel: zfcp: The adapter 
0.0.1734
> reported the following characteristics:
> warn-20110324.bz2:Mar 24 18:32:29 orap103 kernel: zfcp: Switched fabric
> fibrechannel network detected at adapter 0.0.1734.
> warn-20110324.bz2:Mar 24 18:32:29 orap103 kernel: zfcp: port erp failed
> (adapter 0.0.1734, wwpn=0x500507630a0b0485)
> warn-20110324.bz2:Mar 24 18:41:07 orap103 kernel: zfcp: resetting unit
> 0x4070405c00000000
> warn-20110324.bz2:Mar 24 18:41:07 orap103 kernel: zfcp: host/bus reset
> because of problems with unit 0x4070405c00000000
> warn-20110324.bz2:Mar 24 18:41:08 orap103 kernel: zfcp: The adapter 
0.0.1734
> reported the following characteristics:
> warn-20110324.bz2:Mar 24 18:41:08 orap103 kernel: zfcp: Switched fabric
> fibrechannel network detected at adapter 0.0.1734.
> warn-20110324.bz2:Mar 24 18:41:08 orap103 kernel: zfcp: port erp failed
> (adapter 0.0.1734, wwpn=0x500507630a0b0485)
> warn-20110324.bz2:Mar 24 18:41:55 orap103 kernel: zfcp: bug: No
> recommendation could be given for aproblem on the adapter 0.0.1734 
Stopping
> all operations on this adapter. <6>sd 0:0:0:0: SCSI error: return code =
> 0x00070000


Rogério,

I've fixed 1 or 2 of these "host/bus reset" problems in firmware.  I'd 
like to see the output of lszfcp -a -b 0.0.1734 to see lic_version. 
Hopefully, you just need the latest FCP MCLs.

Regards,

Ray Higgs
System z FCP Development
Bld. 706, B42
2455 South Road
Poughkeepsie, NY 12601
(845) 435-8666,  T/L 295-8666
[email protected]

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