Fujitsu MAN3735 Manual De Usuario

6 - 

8

C141-E124-01EN

(2)

Writing a data pattern

Write a data pattern for verification in the data block which is the object.  The recommended data
pattern at this time is X '0123456789ABCDEF' repeated.  The WRITE, WRITE EXTENDED or
WRITE SAME command can be used to write data.

(3)

Reading and verification of data

Issue the READ, READ EXTENDED or VERIFY command and verify that the data written to the
disk media in item (2)  were read correctly.

To verify reading of data, it is recommended that reading of the same data block be done at lease 2
times, but the number of times verification is performed is determined by the conditions on the
system.  If reading of all data is completed normally, it can be recognized that use of that data
block can be used normally.

(4)

Error verification

When an error related to the disk media (Sense Key = 3: MEDIUM ERROR) occurs during writing
of the data pattern (see item (2)) or verification of data reading (see item (3)), reexecute the
rewriting and reading verification combination (two times) at least 8 times.

When the same type of error occurs even once during reexecution, it is recommended that the INIT
treat that data block as a defective block.  If the reexecution of verification is completed normally
every time, it should be regarded that that data block can be used normally.