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5.4 Checking Operation after Installation and Preparing the HDDs for Use
C141-E230 5-5
c) Issue the REQUEST SENSE command to collect sense data. When sense data has been collected
successfully, perform an analysis to check for recoverable errors, and retry operations for
recovery from any such errors.
(2) Checking at abnormal end
a) When sense data can be obtained, analyze the sense data and retry recovery for a recoverable
error. Refer to Chapter 5 “Sense Data and Error Recovery Method” of the Interface
Specifications for further details.
5.4.2 Formatting
Since the disk drive is formatted with a specific (default) data format for each model (part number)
when shipped from the factory, the disk need not be formatted (initialized) when it is installed in the
system.
However, when the system needs data attributes different from the default format, all sides of the disk
must be formatted (initialized) according to the procedures below.
The user can change the following data attributes at initialization:
• Logical data block length
• Number of logical data blocks in the user space
• Alternate spare area size
This section outlines the formatting at installation. Refer to Subsection 4.1.4 “MODE
SELECT (15)”, 4.1.5 “MODE SELECT EXTENDED (55)” of the Serial Attached SCSI Interface
Specifications for further details.
(1) MODE SELECT/MODE SELECT EXTENDED command
Specify the format attributes on the disk with the MODE SELECT or MODE SELECT EXTENDED
command. The parameters are as follows.
a. Block descriptor
Specify the size (byte length) of the logical data block in the "data block length" field. To
explicitly specify the number of logical data blocks, specify the number in the "number of data
blocks" field. Otherwise, specify 0 in "number of data blocks" field. In this case, the number of
logical data blocks after initialization is determined by the value specified in the format
parameter (page code = 3) and drive parameter (page code = 4).
b. Format parameter (page code = 3)
Specify the number of spare sectors for each cell in the "alternate sectors/zone" field. It is
recommended not to specify values smaller than the HDD default value in this field.
- C141-E230-01EN 1
- FOR SAFE OPERATION 2
- REVISION RECORD 3
- Related Standards 4
- Preface 5
- Important Alert Items 7
- C141-E230 v 9
- CONTENTS 11
- C141-E230 1-1 17
- General Description 18
- 1-2 C141-E230 18
- 1.1 Standard Features 19
- C141-E230 1-3 19
- 1-4 C141-E230 20
- C141-E230 1-5 21
- 1-6 C141-E230 22
- CHAPTER 2 Specifications 23
- Specifications 24
- 2-2 C141-E230 24
- 2.1 Hardware Specifications 25
- C141-E230 25
- 2-4 C141-E230 26
- C141-E230 2-5 27
- 2-6 C141-E230 28
- CHAPTER 3 Data Format 29
- Data Format 30
- 3-2 C141-E230 30
- 3.1 Data Space 31
- C141-E230 3-3 31
- 3-4 C141-E230 32
- 3.1 Data Space 33
- C141-E230 3-5 33
- 3-6 C141-E230 34
- C141-E230 3-7 35
- 3-8 C141-E230 36
- C141-E230 3-9 37
- 3-10 C141-E230 38
- 3.3 Defect Management 39
- C141-E230 3-11 39
- 3-12 C141-E230 40
- C141-E230 3-13 41
- 3-14 C141-E230 42
- C141-E230 4-1 43
- Installation Requirements 44
- 4-2 C141-E230 44
- 4.1 Mounting Requirements 45
- C141-E230 4-3 45
- 4-4 C141-E230 46
- 4.1 Mounting Requirements 47
- C141-E230 4-5 47
- 4-6 C141-E230 48
- C141-E230 4-7 49
- 4-8 C141-E230 50
- C141-E230 4-9 51
- 4-10 C141-E230 52
- C141-E230 4-11 53
- CHAPTER 5 Installation 55
- Installation 56
- 5-2 C141-E230 56
- 5.2 Setting 57
- C141-E230 5-3 57
- 5-4 C141-E230 58
- C141-E230 5-5 59
- 5-6 C141-E230 60
- C141-E230 5-7 61
- 5-8 C141-E230 62
- C141-E230 5-9 63
- 5-10 C141-E230 64
- C141-E230 6-1 65
- Diagnostics and Maintenance 66
- 6-2 C141-E230 66
- 6.1 Diagnostics 67
- C141-E230 6-3 67
- 6-4 C141-E230 68
- 6.2 Maintenance Information 69
- C141-E230 6-5 69
- 6-6 C141-E230 70
- C141-E230 6-7 71
- Revising at field 72
- C141-E230 6-9 73
- 6-10 C141-E230 74
- C141-E230 6-11 75
- 6-12 C141-E230 76
- C141-E230 6-13 77
- 6-14 C141-E230 78
- CHAPTER 7 Error Analysis 79
- Error Analysis 80
- 7-2 C141-E230 80
- 7.2 Sense Data Analysis 81
- C141-E230 7-3 81
- 7-4 C141-E230 82
- Glossary 83
- Acronyms and Abbreviations 85
- C141-E230 IN-1 87
- IN-2 C141-E230 88
- C141-E230 IN-3 89
- Comment Form 91
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