HP XP20000/XP24000 HP StorageWorks XP Disk Array Configuration Guide for Linux - Page 25

Troubleshooting, Error conditions

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2 Troubleshooting This section provides resolutions for various error conditions you may encounter. If you are unable to resolve an error condition, ask your HP support representative for assistance. See "Calling the HP support center" on page 26. Error conditions Depending on your system configuration, you may be able to view error messages (R-SIMS) as follows: • In XP Remote Web Console (Status tab) • In XP Command View Advanced Edition Software (Alerts window) • In XP Command View (Event History or Event Notification windows) (XP arrays only) Table 5 Error conditions Error condition The logical devices are not recognized by the host. Recommended action Verify the following: • The READY indicator lights on the disk array are ON. • Fiber cables are correctly installed and firmly connected. • The target IDs are properly configured. The LUNs for each TID must start at 0 and continue sequentially without skipping any numbers. • The TIDs/WWNs on each bus are unique. Do not install two devices with the same ID on the same bus. Recheck the buses for new devices. • LUSE devices are not intermixed with normal LUNs on the same port. • The maximum number of LUSE devices per port has not been exceeded. • The disk array host mode is set correctly. The host does not reboot properly after hard shutdown. If you power off the host without executing the shutdown process, wait three minutes to allow the disk array's internal timeout process to purge queued commands. If the host restarts while the disk array is processing queued commands, the host may not reboot successfully. Physical volumes cannot be created. Verify that the disk array logical devices are correctly formatted. Logical volumes cannot be created. Verify that the volume capacity for OPEN-x volumes is not greater than the maximum capacity allowed. See "Disk array supported emulations" on page 29. Verify that the capacity of the volume group is not less than the total capacity of the partitioned logical volume. A file system is not mounted after rebooting. Verify that the host was restarted correctly. Verify that the file system attributes are correct. XP Disk Array Configuration Guide for Linux 25

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2 Troubleshooting
This section provides resolutions for various error conditions you may encounter.
If you are unable to resolve an error condition, ask your HP support representative for assistance. See
“
Calling the HP support center
” on page 26.
Error conditions
Depending on your system configuration, you may be able to view error messages (R-SIMS) as follows:
•
In XP Remote Web Console (Status tab)
•
In XP Command View Advanced Edition Software (Alerts window)
•
In XP Command View (Event History or Event Notification windows) (XP arrays only)
Table 5 Error conditions
Recommended action
Error condition
Verify the following:
The logical devices are not
recognized by the host.
•
The READY indicator lights on the disk array are ON.
•
Fiber cables are correctly installed and firmly connected.
•
The target IDs are properly configured. The LUNs for each TID must
start at 0 and continue sequentially without skipping any numbers.
•
The TIDs/WWNs on each bus are unique. Do not install two
devices with the same ID on the same bus. Recheck the buses for
new devices.
•
LUSE devices are not intermixed with normal LUNs on the same
port.
•
The maximum number of LUSE devices per port has not been
exceeded.
•
The disk array host mode is set correctly.
If you power off the host without executing the shutdown process, wait
three minutes to allow the disk array's internal timeout process to purge
queued commands. If the host restarts while the disk array is processing
queued commands, the host may not reboot successfully.
The host does not reboot properly
after hard shutdown.
Verify that the disk array logical devices are correctly formatted.
Physical volumes cannot be created.
Verify that the volume capacity for OPEN-x volumes is not greater than
the maximum capacity allowed. See “
Disk array supported
emulations
” on page 29.
Logical volumes cannot be created.
Verify that the capacity of the volume group is not less than the total
capacity of the partitioned logical volume.
Verify that the host was restarted correctly.
A file system is not mounted after
rebooting.
Verify that the file system attributes are correct.
XP Disk Array Configuration Guide for Linux
25