Release 6.0 294
User Guide Chapter 10 Troubleshooting
10.6 NEC Storage PathManager (Linux) Errors
Problem Cause and Solution
After SPS is installed and the OS is
restarted, 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 is
configured 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 disk
array unit is not recognized, they are not shown in the
file. When they are not shown, check the FC cables are
connected 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 the
supported kernel version is installed.
If the problem persists even after checking and performing
above mentioned, please contact the Support Service.
A configuration file of the SPS was
created successfully but an error
occurred when I/O was performed
through 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 using
NEC Storage Manger because the LUN of the disk array
unit may be in "Not Ready" state.
The LUN state may have been changed by a command
from ControlCommandSet (such as ReplicationControl,
SnapControl). Clear "Not Ready" state according to the
device you are using.
If the problem persists even after checking and performing
above mentioned, please contact the Support Service.
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