Request Sense
Julyl 2017 Command Set 223
No Sense Key
The library returns a No Sense Key (00h) when there is no sense data to report, or
when no real error has occurred and the host should resend the command. The
following table describes the ASC and ASCQ values that go along with No Sense Key.
Not Ready Sense Key Codes
If a command is sent when the library is not ready, it generates a Not Ready error
code. The following codes describe the conditions of the library that can generate Not
Ready codes.
Not Ready, Cause Not Reportable
The library detected a not ready state after execution of the command was started.
Not Ready, In Process of Becoming Ready
The library is initializing and performing an audit. Initialization occurs in a number
of situations, including power-on, after a magazine is removed and inserted, and as
part of a recovery during certain failures.
Not Ready, Manual Intervention Required
This sense data indicates that the library is in an inoperable state. The operator
should check the user interface to determine what action is required.
Not Ready, Logical Unit Not Ready, Operation in Progress
This sense data indicates that the library is busy processing another command.
TABLE 4-121 No Sense Keys
Description Sense Key ASC ASCQ
No Sense Data 0 00h 00h
No Sense, Operation in Progress 0 00h 16h
TABLE 4-122 Not Ready Sense Keys
Description Sense Key ASC ASCQ
Not Ready, Cause Not Reportable 2h 04h 00h
Not Ready, In Process of Becoming Ready 2h 04h 01h
Not Ready, Manual Intervention Required 2h 04h 03h
Not Ready, Logical Unit Not Ready, Operation in
Progress
2h 04h 07h
Not Ready, Logical Unit Offline 2h 04h 12h
Not Ready, Maintenance Mode 2h 04h 81h
Not Ready, Cleaning Cartridge Installed 2h 30h 03h
Not Ready, Mailslot Open 2h 3Ah 02h
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