LUN set offline
On Intel based hosts running the Linux® operating system, in response to errors, the kernel might permanently disable a LUN and log a message that states both device set offline and the specific device.
The kernel typically sets a LUN offline to avoid a possible miscompare mechanism. The message is logged in the syslog, which is usually found in the /var/log/messages directory.
If
you receive this message, try one of the following actions:
- Remove the module.
- Restart the host.