The IBM z/VM Operating System <IBMVM@LISTSERV.UARK.EDU> wrote on 05/06/2011 12:58:23 PM:
> From: "Crabtree, Anne D" <anne.d.crabt...@wv.gov> > To: IBMVM@LISTSERV.UARK.EDU > Date: 05/06/2011 01:02 PM > Subject: Re: Using EMC Clariion SCSI disk with Linux > Sent by: The IBM z/VM Operating System <IBMVM@LISTSERV.UARK.EDU> > > Thank you Ray. > Will verify these things and get back to you (probably next week). > > Thank you Heiko. > Will research these as well. Can you tell me where speed is defined? > > I appreciate the responses. > > From: The IBM z/VM Operating System [IBMVM@LISTSERV.UARK.EDU] On > Behalf Of Raymond Higgs [rayhi...@us.ibm.com] > Sent: Friday, May 06, 2011 9:11 AM > Subject: Re: Using EMC Clariion SCSI disk with Linux > The IBM z/VM Operating System <IBMVM@LISTSERV.UARK.EDU> wrote on 05/ > 06/2011 07:51:57 AM: > > > From: "Crabtree, Anne D" <anne.d.crabt...@wv.gov> > > To: IBMVM@LISTSERV.UARK.EDU > > Date: 05/06/2011 07:53 AM > > Subject: Using EMC Clariion SCSI disk with Linux > > Sent by: The IBM z/VM Operating System <IBMVM@LISTSERV.UARK.EDU> > > > > I posted this on IBM-MAIN with not much response so hoping someone > > on z/VM might be able to help. Opened a PMR with IBM software but > > they feel it is a hardware issue. Waiting for information on switch > > before contacting IBM hardware folks... > > > > We have a z10 in which I have defined 2 FCP chpids on our FICON > > Express8 cards. These chpids have NPIV enabled and I have provided > > the open system team with the WWPN's that were generated. The FCP > > chpids are dedicated to our 1 Linux IFL. We have connected the > > fiber, but the chpid, while staying ONLINE, gets a SEQUENCE TIME-OUT > > on the HMC. The light is on on the mainframe side, but not on the > > switch. The open system team tells me that there is nothing for > > them to do on their side until they can "see" the mainframe (light > > comes on?). In z/VM, the chips appear fine, defined as FCP with > > devices attached and FREE. I'm not sure what else I can do from the > > mainframe side to help the situation? I am not involved in the > > Linux portion but the Linux guy says he can't "see" the luns from > > Linux. Both sides appear to be waiting on me to fix things! > > > > The SCSI is a "CLARiiON CX-700 with FLARE (operating system) > > version 26 revision 31 (02.26.700.5.031) which is the latest release > > for the CX-700 product line. " > > Anne, > > The bad news is that we don't support EMC Clariion, but I have heard > accounts of it working just fine. Since you are having problems > between the channel and switch, you still will be able to get some > IBM support. I'd check these things: > > * Double check the cabling between the channel and the switch. Is > the channel really plugged into the switch port that you think it is? > * Make sure that the optics in the switch, the optics in the > channel, and the fibre are either all long wave or all short wave. No mixing. > * Check the switch for bit errors. If the switch is seeing bit > errors, it may have disabled the port on you. Or even simpler, was > the switch port ever online? > * Is NPIV enabled on your switch? There is a panel on the SE called > Fabric Login Status that may have some clues... Use the HMC to do > single object operatings to your z10 CPC. Navigate to your channel. > It doesn't matter if it is the chpid or pchid. Find "channel > operations" in the menus (I'm used to classic mode so I use those > arrows to cycle through the right hand panel. Use "channel problem > determination". You might have to select an lpar at this point. > Then "Fabric login Status...". This panel shows a bunch of fibre > channel info from the channel about how it is logged into your > switch fabric. There might be some error messages here. > > Regards, > > Ray Higgs > System z FCP Firmware Development > Bld. 706, B42 > 2455 South Road > Poughkeepsie, NY 12601 > (845) 435-8666, T/L 295-8666 > rayhi...@us.ibm.com Anne, Your Ficon Express 8 hardware will try to negotiate to 8, 4 or 2 gig. There is no way on the SE/HMC to force a channel to certain speed. All of the switch consoles have speed settings in different places... Regards, Ray Higgs System z FCP Firmware Development Bld. 706, B42 2455 South Road Poughkeepsie, NY 12601 (845) 435-8666, T/L 295-8666 rayhi...@us.ibm.com
