Home » Fujitsu Manuals » Hard Drives » Fujitsu MAX3073NC » Manual Viewer

Fujitsu MAX3073NC Specifications - Page 162

Read/Write Error Recovery parameter, code 21: Additional Error Recovery

UPC - 550221511118

Add to My Manuals
Save this manual to your list of manuals

Page 162 highlights

Command Specifications (1) Self-diagnosis test When the "SelfTest (self test)" bit is "1," and "Self-Test Code" field is "000" in the CDB, this command specifies execution of the self-diagnosis test which the IDD is equipped to perform. At this time, the "PF (page format)" bit and the "Parameter list length" field in the CDB have no meaning and the values specified there are disregarded. Also, the "DevOfl (device off-line)" bit specifies whether or not operations which have an influence on the status of logical units other than the logical unit specified in this command during the self-diagnosis test, but in the IDD, there is only 1 logical unit that exists. Therefore, the specification in this bit has no meaning and the specified value is disregarded. The INIT can specify the type of self-diagnosis test to be executed through the "UnitOfl (unit off-line)" bit. When "1" is specified in the "SelfTest (self test)" bit, the IDD executes a series of self-diagnosis tests in accordance with the combination with the "UnitOfl (unit off-line)" bit, as shown below. Type of Self-diagnosis Test 1) Controller Function Test 2) Disk Drive Seek Test 3) Disk Media (CE Space) Write/Read/Data Comparison Test UnotOfl = "0" UnitOfl = "1" × × × × ×: Execution Object When the IDD completes all the specified self-diagnosis tests normally, it reports a GOOD status. On the other hand, when an error is detected in any of the specified self-diagnosis tests, a CHECK CONDITION status is reported and information related to the detected error is shown in the sense data. For example, when an error is detected in the controller function test, the type of error is shown by HARDWARE ERROR [=4] in the sense key, and the additional sense code/additional sense code qualifier show "Diagnostic failure on component 'nn' [=40-nn]." (nn is the code in the range X '80' to X 'FF,' which shows the type of error. This code is a Fujitsu unique definition for the purpose of analysis when there is a failure, and its meaning is not released to the public. The user should present the value displayed in this sense data as repair information to the Fujitsu representative.) Furthermore, error recovery processing when diagnostic tests (seek tests and write/read/data comparison tests) related to the disk drive are executed are in accordance with the mode set in the MODE SELECT command's parameters (Page code 1: Read/Write Error Recovery parameter, Page code 21: Additional Error Recovery parameter), except in the following special cases. Special cases of MODE SELECT parameters during a self-diagnosis test are as shown below • The AWRE, ARRE and TB flags are not applied. • The PER and DTE flags are as shown in Table 3.6. 3-100 C141-C010

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

Match case Limit results 1 per page

Command Specifications

3-100

C141-C010

(1)

Self-diagnosis test

When the “SelfTest (self test)” bit is “1,” and “Self-Test Code” field is “000” in the CDB, this command

specifies execution of the self-diagnosis test which the IDD is equipped to perform.

At this time, the “PF

(page format)” bit and the “Parameter list length” field in the CDB have no meaning and the values

specified there are disregarded.

Also, the “DevOfl (device off-line)” bit specifies whether or not

operations which have an influence on the status of logical units other than the logical unit specified in

this command during the self-diagnosis test, but in the IDD, there is only 1 logical unit that exists.

Therefore, the specification in this bit has no meaning and the specified value is disregarded.

The INIT can specify the type of self-diagnosis test to be executed through the “UnitOfl (unit off-line)”

bit.

When “1” is specified in the “SelfTest (self test)” bit, the IDD executes a series of self-diagnosis

tests in accordance with the combination with the “UnitOfl (unit off-line)” bit, as shown below.

Type of Self-diagnosis Test

UnotOfl = “0”

UnitOfl = “1”

1) Controller Function Test

2) Disk Drive Seek Test

3) Disk Media (CE Space) Write/Read/Data Comparison Test

: Execution Object

When the IDD completes all the specified self-diagnosis tests normally, it reports a GOOD status.

On the other

hand, when an error is detected in any of the specified self-diagnosis tests, a CHECK CONDITION status is

reported and information related to the detected error is shown in the sense data.

For example, when an error is

detected in the controller function test, the type of error is shown by HARDWARE ERROR [=4] in the sense

key, and the additional sense code/additional sense code qualifier show “Diagnostic failure on component ‘nn’

[=40-nn].” (nn is the code in the range X ‘80’ to X ‘FF,’ which shows the type of error.

This code is a Fujitsu

unique definition for the purpose of analysis when there is a failure, and its meaning is not released to the

public.

The user should present the value displayed in this sense data as repair

information to the Fujitsu

representative.)

Furthermore, error recovery processing when diagnostic tests (seek tests and write/read/data comparison tests)

related to the disk drive are executed are in accordance with the mode set in the MODE SELECT command’s

parameters (Page code 1:

Read/Write Error Recovery parameter, Page code 21: Additional Error Recovery

parameter), except in the following special cases.

Special cases of MODE SELECT parameters during a self-diagnosis test are as shown below

•

The AWRE, ARRE and TB flags are not applied.

•

The PER and DTE flags are as shown in Table 3.6.