Chapter 1. Start Service 1-31
12–13 Additional Sense Code (ASC)
Additional Sense Code Qualifier (ASCQ)
Byte 12 Byte 13
ASC ASCQ
Sense Key 6 (Unit Attention)
EE xx Encryption Related
EE 12 Encryption - Key Change Detected
EE 18 Encryption - Changed (Read)
EE 19 Encryption - Changed (Write)
EE 40 Encryption - EKM Identifier Changed
EE 41 Encryption - EKM Challenge Changed
EE 50 Encryption - Initiator Identifier Changed
EE 51 Encryption - Initiator Response Changed
EF xx Encryption Related
Sense Key 7 (Data Protect)
EE xx Encryption Related
EF xx Encryption Related
EF 10 Encryption - Key Required
EF 11 Encryption - Key Generation
EF 13 Encryption - Key Translate
EF 1A Encryption - Key Optional
EF C0 Encryption - No Operation
14 Field Replaceable Unit (FRU) ID
15 SKSV C/D Reserved BPV Bit counter
16–17 Field Pointer
18 Bit Description
7 Vendor-Reserved (Record Sense Request)
6 Sequential Medium Loader Active
- B’0’: this device does not support sequential loaders.
5 Microcode Dump Available
- B’0’: Indicates there is no microcode dump currently available
- B’1’: Indicates a microcode dump is available.
This information may be retrieved with the Read Buffer command, and can be used by IBM Service personnel
to analyze the state of the device.
The dump is lost at the next power off.
4 Tape Directory Invalid
- B’0’: Indicates the Tape Directory is valid
- B’1’: Indicates the Tape Directory is invalid
Note: This field may not be valid if the drive is not ready or when the sense data is associated with a CHECK
CONDITION status (contingent allegiance or autosense condition). The Request Sense command should be
used to return unsolicited sense to insure the field is valid. An invalid Tape Directory will be automatically
rebuilt using a performance optimized method during any space or locate operation. There is no need to fully
read the media for directory rebuilding.
3 Vendor-Reserved (Media Test Mode)
2 EOD is in Performance Segment
1 Current location is in Performance Segment
0 Port Reporting Sense
- B’0’: Indicates this sense reported on port 0
- B’1’: Indicates this sense reported on port 1
19–22 Reserved
23 Medium Status
Table 1-9. Tape drive sense data (continued)
Byte
Bit Address or Name
76543210
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