For the problem you describe, I would expect a specific "busy" message.
> tdcrac02 kernel: zfcp: unit erp failed on unit 0x0020000000000000 on port > 0x5001738001820141 on adapter 0.0.8001 In any case, are you using a shared physical FCP adapter? You'll then also need NPIV. Without NPIV, a single physical FCP adapter presents one WWPN to the SAN, for all LPARs using it and for all subchannels on it. With NPIV, you get a different (virtual) WWPN for each subchannel on each LPAR. If you DO have NPIV in place, then check that the storage is zoned and mapped to both (virtual) WWPNs (per path), one for each of the guests. Probably obvious to you, so no offense, but it's easy to miss. -- Rick; <>< On Wed, Jun 23, 2010 at 10:13, Robert J McCarthy <bob.mccar...@custserv.com> wrote: > We are planning to set up an Oracle RAC environment with two linux guests > on the same vm lpar. They will be accessing the same fcp disk. The problem > that we are having is as as follows: > The 1st guest is booted. An "lszfcp -D" command displays all of the > expected information including the WWPN and lun of the san. > The 2nd guest is booted. An "lszfcp -D" command will show the WWPN of the > san, but not the lun information for the san. The following error is also > found in the linux log > tdcrac02 kernel: zfcp: unit erp failed on unit 0x0020000000000000 on port > 0x5001738001820141 on adapter 0.0.8001 > We are running zVM 5.4 and Redhat 5.4 of linux. The fcp disks are > assigned a separate channel path for each guest through DEDICATE statements > in VM. Any ideas ? > Thank you, Bob >
