We used to use FCP connected disks to an SVC. EACH and every linux image could see each others data. We've now moved off the SVC to native shark disks. On the HMC, we turned on NPIV for each of the 4 chpids that connect us to the SAN. NPIV assigns an individual WWPN for EACH address so that you can assign (zone) on your shark each linux image connection.
On 10/4/2010 11:00 AM, Jean Nelson wrote:
Question: We have gotten SAN (FCP) working with a couple of z/Linux Servers. Right now we have: CHPID PATH=(98),PARTITION=((VMP1)),TYPE=FCP CNTLUNIT CUNUMBER=A800,PATH=(98),UNIT=FCP IODEVICE ADDRESS=(A800),CUNUMBR=(A800),UNIT=FCP CHPID PATH=(99),PARTITION=((VMP1)),TYPE=FCP CNTLUNIT CUNUMBER=A801,PATH=(99),UNIT=FCP IODEVICE ADDRESS=(A801),CUNUMBR=(A801),UNIT=FCP We attach A800 and A801 to the z/LINUX machine and everything works just fine. Now we want to have multiple SAN disks on the same Channels (CHPID 98 and CHPID 99) CHPID PATH=(98),PARTITION=((VMP1)),TYPE=FCP CNTLUNIT CUNUMBER=A800,PATH=(98),UNIT=FCP IODEVICE ADDRESS=(A800,64),CUNUMBR=(A800),UNIT=FCP CHPID PATH=(99),PARTITION=((VMP1)),TYPE=FCP CNTLUNIT CUNUMBER=A900,PATH=(99),UNIT=FCP IODEVICE ADDRESS=(A900,64),CUNUMBR=(A900),UNIT=FCP So we have 64 devices on Channel 98 and 64 devices on Channel 99. My question is this? If on the SAN side , if they define a disk on PATH 98 , do ALL of the 64 address defined in the IODF see the WWPN/LUN? (Or on a specific Port that equates to PATH/CHPID 98 on the on the mainframe side) If we have 8 zLinux servers defined under z/VM , we would need 8 separate device address (one for each z/LINUX) to gain access to that SAN / Path. I haven't been able to find a lot of documentation on this... They just give you the IODF definition and not a whole lot of explination on the details on HOW (if any) the device addresses work with the SAN (WWPN/LUN) We have been able to get a WWPN/LUN combination working on the SAN (PATH 98 and PATH 99). Just looking for some help from some people that have setup SAN disks attached to z/LINUX (not EDEV's). Thanks again in advance! Jean ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
-- -- Brian W. France Systems Administrator (Mainframe) Pennsylvania State University Administrative Information Services - Infrastructure/SYSARC Rm 25 Shields Bldg., University Park, Pa. 16802 814-863-4739 [email protected] <mailto:[email protected]> "To make an apple pie from scratch, you must first invent the universe." Carl Sagan ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
