zfcp scsi devices are not detected while booting Red Hat Enterprise Linux 5 s390 instance

Solution Verified - Updated -

Issue

  • zfcp scsi devices are not detected while booting Red Hat Enterprise Linux 5 s390 instance

    zfcp.conf 
0x0900 0x1:0x2000000402e00621 0x0:0x0000000000000000

During boot the following message is noticed

echo: cannot open /sys/bus/ccw/drivers/zfcp/0900/port_add for write: No such file or directory                        
echo: cannot open /sys/bus/ccw/drivers/zfcp/0900/0x2000000402e00621/unit_add for write: No such file or directory     
echo: cannot open /sys/bus/ccw/drivers/zfcp/0900/online for write: No such file or directory

Environment

  • Red Hat Enterpise Linux 5 on S390

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