Fujitsu MBA3073FD, Product Manual

Page: 67 / 106

5.4 Checking Operation after Installation and Preparing the HDDs for Use
(2) Checking at abnormal end
a) When sense data can be obtained with the REQUEST SENSE command, analyze the sense data
and retry recovery for a recoverable error. Refer to Chapter 6 "Sense Data and Error Recovery
Method" of the FIBRE CHANNEL INTERFACE MANUAL for further details.
b) Check the setting of the terminals. Note that the checking procedure of loop connection differs
depending on the setting of the motor start mode and UNIT ATTENTION report mode.
5.4.3 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)" of the FIBRE CHANNEL 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-E264 61