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Fujitsu MAX3073NC Specifications - Page 227

Informational exceptions control code = 1C, MODE SELECT parameters:

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4.1 Mode Parameters 4.1.10 Informational exceptions control page (page code = 1C) The page descriptor format of this MODE SELECT parameter is shown in Figure 4.9. Byte Bit 7 6 5 4 3 2 1 0 0 0 0 0 1 1 1 0 0 1 Page length (X'0A') 2 Perf 0 EBF EWASC DExcpt Test 0 LogErr Default 0 0 0 0 1 0 0 0 Variable 1 0 1 1 1 1 0 1 3 0 0 0 0 MRIE Default 0 0 0 0 0 0 0 0 Variable 0 0 0 0 0 1 1 1 4-7 Default Interval Timer X'00000000' Variable X'FFFFFFFF' 8-11 Default Report Count X'00000001' Variable X'FFFFFFFF' Figure 4.11 MODE SELECT parameters: informational exception control This page specifies whether the drive failure prediction function is enabled or disabled and the reporting method when a drive failure is predicted. The log errors bit (LogErr) of zero indicates that the logging of informational exception conditions within a target is vendor specific. A LogErr bit of one indicates the target logs informational exception conditions. A Test bit of one creates a false device failure at the next interval time, if the DExcpt bit is not set. When the Test bit is one, the MRIE and Report count fields apply as if the Test bit were zero. The false device failure is reported with an additional sense code of FAILURE PREDICTION THRESHOLD EXCEEDED [=50-FF]. If both the Test and the DExcpt bits are one, the device server terminate the MODE SELECT command with CHECK CONDITION status. The sense key is set to ILLEGAL REQUEST [=5] with the additional sense code set to INVALID FIELD IN PARAMETER LIST [=2600]. A Test bit of zero instructs the device server not to generate any false device faulure notifications. A disable exception control (DExcpt) bit of zero indicates information exception operations is enabled. The reporting of information exception conditions when the "DExcpt" bit is set to zero is determined from the method of reporting informational exceptions field. A "DExcpt" bit of one indicates the target disables all information exception operations. The method of reporting informational exceptions field is ignored when "DExcpt" is set to one. C141-C010 4-43

Section	Page
Front Cover	1
FOR SAFE OPERATION	2
Revision History	3
Preface	5
Contents	11
Illustrations	16
Figures	16
Tables	17
CHAPTER 1 Command Processing	19
1.1 Command Format	19
1.2 Status	24
1.3 Outline of Command Processing	26
1.3.1 Single commands	26
1.3.2 Command link	27
1.3.3 Disconnect/reconnect processing	29
1.3.4 Synchronous mode data transfer/wide mode data transfer	33
1.4 Command Queuing Function	34
1.4.1 Untagged queuing	34
1.4.2 Tagged queuing	36
1.5 UNIT ATTENTION Condition	37
1.5.1 Generation of the UNIT ATTENTION condition	37
1.5.2 Response and release condition at UNIT ATTENTION condition hold state	38
1.5.3 UNIT ATTENTION condition multiple hold	38
1.6 Sense Data Hold State	40
1.6.1 Sense data hold condition	40
1.6.2 Response and release conditions at sense data hold state	40
1.7 Command Processing Exceptions	41
1.7.1 Overlapping commands	41
1.7.2 Illegal LUN specification	42
1.7.3 Reserved operation code	42
1.7.4 Command processing in the not ready state	42
1.7.5 Error recovery processing	44
1.7.6 Reset processing	46
1.7.7 Fatal hardware errors	47
1.8 Data Block Addressing	48
1.8.1 Definition of data space	48
1.8.2 Logical block addressing	50
CHAPTER 2 Data Buffer Management	51
2.1 Data Buffer	51
2.1.1 Data buffer configuration and basic operation	51
2.1.2 Operation mode setting	55
2.2 Look-Ahead Cache Feature	56
2.2.1 Caching operation	56
2.2.2 Caching parameters	59
2.2.3 Look-Ahead operation, Look-Ahead volume	60
2.3 Write Cache	61
CHAPTER 3 Command Specifications	63
3.1 Control/Sense Commands	63
3.1.1 TEST UNIT READY (00)	63
3.1.2 INQUIRY (12)	64
3.1.3 READ CAPACITY (25)	75
3.1.4 CHANGE DEFINITION (40)	76
3.1.5 MODE SELECT (15)	81
3.1.6 MODE SELECT EXTENDED (55)	89
3.1.7 MODE SENSE (1A)	92
3.1.8 MODE SENSE EXTENDED (5A)	100
3.1.9 REZERO UNIT (01)	103
3.1.10 START/STOP UNIT (1B)	103
3.1.11 RESERVE (16)	105
3.1.12 RESERVE EXTENDED (56)	108
3.1.13 RELEASE (17)	109
3.1.14 RELEASE EXTENDED (57)	110
3.1.15 REQUEST SENSE (03)	110
3.1.16 LOG SELECT (4C)	112
3.1.17 LOG SENSE (4D)	116
3.1.18 PERSISTENT RESERVE IN (5E)	117
3.1.19 PERSISTENT RESERVE OUT (5F)	124
3.1.20 REPORT LUNS (A0)	128
3.1.21 REPORT DEVICE IDENTIFIER (A3)	130
3.1.22 SET DEVICE IDENTIFIER (A4)	131
3.2 Data Access Commands	133
3.2.1 READ (08)	133
3.2.2 READ EXTENDED (28)	134
3.2.3 WRITE (0A)	135
3.2.4 WRITE EXTENDED (2A)	136
3.2.5 WRITE AND VERIFY (2E)	137
3.2.6 VERIFY (2F)	138
3.2.7 SEEK (0B)	139
3.2.8 SEEK EXTENDED (2B)	139
3.2.9 SET LIMITS (33) (Not Supported)	140
3.2.10 SYNCHRONIZE CACHE (35)	142
3.3 Format Commands	143
3.3.1 FORMAT UNIT (04)	143
3.3.2 REASSIGN BLOCKS (07)	153
3.3.3 READ DEFECT DATA (37)	156
3.4 Maintenance, Diagnostic Commands	161
3.4.1 SEND DIAGNOSTIC (1D)	161
3.4.2 RECEIVE DIAGNOSTIC RESULTS (1C)	168
3.4.3 WRITE BUFFER (3B)	172
3.4.4 READ BUFFER (3C)	177
3.4.5 READ LONG (3E)	181
3.4.6 WRITE LONG (3F)	182
3.4.7 WRITE SAME (41)	183
CHAPTER 4 Parameter Data Formats	185
4.1 Mode Parameters	185
4.1.1 Read/Write error recovery parameters (page code = 1)	185
4.1.2 Disconnect/reconnect parameters (page code = 2)	194
4.1.3 Format parameter (page code = 3)	198
4.1.4 Drive parameter (page code = 4)	202
4.1.5 Verify error recovery parameters (page code = 7)	203
4.1.6 Caching parameters (page code = 8)	205
4.1.7 Control mode parameters (page code = 0A)	211
4.1.8 Notch parameter (page code = 0C)	215
4.1.9 Port control parameter (page code = 19)	217
4.1.10 Informational exceptions control page (page code = 1C)	227
4.1.11 Background control mode parameter (page code = 1C/subpage = 01)	231
4.1.12 Additional error recovery parameters (page code = 21)	232
4.2 Log Parameters	233
4.2.1 Supprot log page (X'00')	233
4.2.2 Buffer overrun / underrun page (X'01')	234
4.2.3 Write error count page (X'02')	235
4.2.4 Read error count page (X'03')	238
4.2.5 Verify error count page (X'05')	242
4.2.6 Non-medium error count page (X'06')	245
4.2.7 Temperature page (X'0D')	246
4.2.8 Start-stop cycle counter page (X'0E')	247
4.2.9 Application client page (X'0F')	250
4.2.10 Self-test result page (X'10')	251
4.2.11 Background medium scan page (X'15')	253
4.2.12 SMART status page (X'2F')	255
4.2.13 SMART data page (X'38')	256
CHAPTER 5 Sense Data Error Recovery Methods	257
5.1 Sense Data	257
5.1.1 Sense data format	257
5.1.2 Sense data basic information	258
5.1.3 Sense data additional information	268
5.2 INIT Error Recovery Methods (Recommended)	268
5.2.1 Termination status analysis and error recovery methods	268
5.2.2 Sense data analysis and error recovery methods	271
5.2.3 Error logging	278
5.3 Disk Drive Error Recovery Processing	279
5.3.1 Error states and retry processing procedures	279
5.3.2 Auto alternate block allocation processing	280
5.3.3 Error recovery processing control	282
CHAPTER 6 Disk Media Management	285
6.1 Defect Management	285
6.2 Disk Media Initialization	287
6.2.1 Initialization during installation	287
6.2.2 Re-initialization	289
6.3 Data Block Verification Methods (Recommended)	290
6.4 Alternate Block Allocation Processing	291
Glossary	293
Acronyms and Abbreviations	297
Index	299
READER’S COMMENT FORM	307