We are planning to setup an Oracle RAC environment with two linux guests
on the same vm lpar. They will be accessing fcp disk. The problem is as
follows:
1. Guest 1 is brought up. "lszfcp -D" command will show the wwpn and lun
as expected
2. Guest 2 is brought up. "lszfcp -D" command shows nothing. "lszfcp -P"
command will show the wwpn
Looking at the error log in linux we see the following messages :
Jun 21 15:36:52 tdcrac02 kernel: zfcp: The adapter 0.0.8001 reported the
following characteristics:
Jun 21 15:36:52 tdcrac02 kernel: zfcp: Switched fabric fibrechannel
network detected at adapter 0.0.8001.
Jun 21 15:36:52 tdcrac02 kernel: zfcp: unit erp failed on unit
0x0020000000000000 on port 0x5001738001820141 on adapter 0.0.8001
We are running zVM V5.4 and RedHat linux v5.5. The fcp disk is assigned
separate channel paths in each guest through DEDICATE statements in vm.
NPIV is not turned on at the lpar level, but it is turned on at the SAN
level. Additionally, we have set up two guests with the exact same
configuration, but using SUSE 10SP2. This configuration has no problems
sharing the SAN disk. Is there configuration in RedHat that must be done
that would be different from SUSE ?
Thank you, Bob
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