Release 6.0 294User Guide Chapter 10 Troubleshooting10.6 NEC Storage PathManager (Linux) ErrorsProblem Cause and SolutionAfter SPS is installed and the OS isrestarted, the SPS device (/dev/ddX)is not created.1. Check that you are using supported HBAs.2. Check the serial number of the disk array unit isconfigured correctly.3. Check the disk array unit is recognized by the OS.Refer to the file "/proc/scsi/scsi" and check if "Vendor:NEC" and "Model: DISK ARRAY" are shown. If the diskarray unit is not recognized, they are not shown in thefile. When they are not shown, check the FC cables areconnected correctly.4. Check SPS has been installed successfully.Check the kernel version by running the command"uname -r" to ensure that the SPS that works with thesupported kernel version is installed.If the problem persists even after checking and performingabove mentioned, please contact the Support Service.A configuration file of the SPS wascreated successfully but an erroroccurred when I/O was performedthrough the SPS device (/dev/ddX).Check if "Not Ready" is generated in the system log.If "Not Ready" is generated, check the LUN state by usingNEC Storage Manger because the LUN of the disk arrayunit may be in "Not Ready" state.The LUN state may have been changed by a commandfrom ControlCommandSet (such as ReplicationControl,SnapControl). Clear "Not Ready" state according to thedevice you are using.If the problem persists even after checking and performingabove mentioned, please contact the Support Service.
