NEC IS010-12E iSM13614: Failed to read signature. iSM13614: Failed to read signature. volume=<aaa...a> , iSM13615: Failed to read signature map file. errno=<aaa>

Chapter 2 Message List
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iSM13614: Failed to read signature.
iSM13614: Failed to read signature.
volume=<aaa...a>
[Classification] ERROR
[Explanation] The disk signature information could not be read.
aaa...a : Physical disk number
[Measures] If a message is output immediately before this message, take measures according
to the message. If no message is output immediately before this message,
check that no fault occurs on the volume and that it is readable, and then retry
processing.
iSM13615: Failed to read signature map file.
errno=<aaa>
[Classification] ERROR
[Explanation] The signature map file could not be read.
This message is output on Windows system.
aaa : Error number
[Measures] Take measures according to the message output immediately before this
message.