OK, we *briefly* got the SAN to show a disk, i was able to format,
everything.. we attempted to replicate with the exact same config, and it
failed. Port security has been toggled, WWPNs have been added and removed
from the zone. This is becoming incredibly frustrating. If anyone can
provide any answers.. The documentation (as far as i have found) is so
sparse that i had to look at the source code to identify what the hex codes
mean
This is the output of sys/kernel/debug/s390dbf/zfcp0.0.5000_hba:
timestamp 01271692944:913553125
cpu 00
tag stat
tag2 dism
failed 0x00
status_type 0x00000000
status_subtype 0x00000000
queue_designator 00000000 00000000
payload
timestamp 01271692949:933377062
cpu 01
tag resp
tag2 perr
fsf_command 0x0000000d
fsf_reqid 0x1c985000
fsf_seqno 0x00000000
fsf_issued 01271692949:933235988
fsf_prot_status 0x00000080
fsf_status 0x00000000
fsf_prot_status_qual 00000000 00000000 00000000 00000000
fsf_status_qual 00000000 00000000 00000000 00000000
fsf_req_status 0x00000010
sbal_first 0x00
sbal_last 0x00
sbal_response 0x00
pool 0x01
2807adda 00000001 0000001f 00000002 1abea440
fd0006a0 0000e000 00000000
2808bad6 f2318ac4 1abea440 00000100 00002000
00000000 00000000 00000000
280b01b1 f2318ace 1abea440 00000080 000001
timestamp 01271692950:951330062
cpu 00
tag resp
tag2 ferr
fsf_command 0x00000005
On Fri, Apr 16, 2010 at 5:00 AM, Eric R Farman <far...@us.ibm.com> wrote:
> Daniel,
>
> SCSIDISC retrieves all registered WWPNs from the switch connected to the
> selected FCP subchannel(s). If it only reports the one you had attached, it
> doesn't sound like the switch zones are setup properly to let the LPAR see
> the DASD subsystems. Has the SAN admin registered the physical WWPN of the
> card with the switch zone, or the NPIV WWPNs (displayed on Q FCP output)?
> The latter is necessary in NPIV environment.
>
> Regards,
> Eric
>
> Eric Farman
> z/VM I/O Development
> IBM Endicott, NY
>
>
>
> From:
> Daniel Tate <daniel.t...@gmail.com>
> To: IBMVM@LISTSERV.UARK.EDU Date: 04/15/2010 10:50 AM Subject: Re: z/VM
> not seeing storage from SAN Sent by: The IBM z/VM Operating System <
> IBMVM@LISTSERV.UARK.EDU>
> ------------------------------
>
>
>
> scsidisc only reports those i've attached. That particular output was from
> a different device (i.e. 5001).. my terminology is a little off. Our SAN
> admin swears it's configured correctly on the switch.
>
>
>
> On Thu, Apr 15, 2010 at 9:38 AM, Eric R Farman
> <*far...@us.ibm.com*<far...@us.ibm.com>>
> wrote:
> Hi Daniel,
>
> The WWPN listed in your Q FCP outputs and that from the SCSIDISC tool are
> similar enough that I suspect they are different subchannels on the same FCP
> card, and not of your target DASD subsystem. Are there other WWPNs listed
> in the SCSIDISC output beyond what you have sent? If so, what does SCSIDISC
> see with them? If not, has the switch been told about the NPIV WWPNs that
> the VM LPAR will be using (that is, those listed in Q FCP)? What specific
> messages do you get when varying on the EDEV?
>
> One other thing... the FCP subchannel (5000 in your example below)
> shouldn't be attached to a particular user if it is going to be used as part
> of an EDEV. It should be free so that VM can attach it to the SYSTEM itself
> at the time the EDEV is varied online. (The FCP can be used for multiple
> paths/LUNs at once, so in reality the FCP should be either free or attached
> to SYSTEM.) The ATTACH 5000 TO * command would be used for a guest to use,
> such as for SCSIDISC or Linux itself configuring SCSI.
>
> Regards,
> Eric
>
> Eric Farman
> z/VM I/O Development
> IBM Endicott, NY
>
>
> From: Daniel Tate <*daniel.t...@gmail.com* <daniel.t...@gmail.com>> To:
> *ib...@listserv.uark.edu* <IBMVM@LISTSERV.UARK.EDU> Date: 04/14/2010
> 02:40 PM Subject: z/VM not seeing storage from SAN Sent by: The IBM z/VM
> Operating System <*ib...@listserv.uark.edu* <IBMVM@LISTSERV.UARK.EDU>>
>
> ------------------------------
>
>
>
>
> Disclaimer: I am a UNIX admin, working with z/VM for the first time.
> I only know basic commands and concepts, but really need to get this
> working.
>
> Our san is connected, and other LPARs can see the storage. the CHPID
> is online. I can attach the storage (ATTACH 5000 to *) and SET EDEV
> blahblahbah.. but when i try to vary on the storage,i get a NO PATH TO
> DEVICE error.
>
> Anyone have any ideas?
>
> SCSIDISC Reports:
> WARNING::WWPN C05076FAE3000408 Could Not be Opened
> WARNING::WWPN C05076FAE3000408 ignored
>
> Here’s the output from q fcp:
>
> q fcp
>
> 07:05:04 FCP 5000 ATTACHED TO MAINT 5000 CHPID 46
> 07:05:04 WWPN C05076FAE3000400
>
>
> q v fcp
>
> 08:27:31 FCP 5000 ON FCP 5000 CHPID 46 SUBCHANNEL = 011D
> 08:27:31 5000 DEVTYPE FCP CHPID 46 FCP
> 08:27:31 5000 QDIO-ELIGIBLE QIOASSIST-ELIGIBLE
> 08:27:31 WWPN C05076FAE3000400
>
> Ready; T=0.01/0.01 08:27:31
>
>
>
>
>
