Fujitsu MBB2073RC User Manual

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. 

 
(5) 

Checking at abnormal end 

 

When sense data can be obtained, analyze the sense data and retry recovery for a recoverable 
error.  Refer to Chapter 6 “Sense Data and Error Recovery Method” of the SAS INTERFACE 
MANUAL for further details. 

 

 
5.4.2 Formatting 

 

Since the HDD 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 

 
 

This section outlines the formatting at installation.  Refer to Subsection 4.1.4 "MODE 
SELECT (15)", 4.1.5 "MODE SELECT EXTENDED (55)", 4.3.1 "FORMAT UNIT (04)", and 
Chapter 7 "Disk Media Management" of the SAS INTERFACE MANUAL 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 currently 
set value is used. 

 

b.  Format parameter (page code = 3) 

 
 

Specify the number of spare sectors for each cell in the "alternate sectors/zone" field (cannot be 
changed). 

C141-E257 

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