Disk Drive Revision Number; Figure 1.1 Disk Drive Revision Number Label - Fujitsu MHS2020AT Maintenance Manual

1.1 Maintenance

1.1.4 Disk drive revision number

The disk drive revision number is a single alphabetic character followed by a
single alphanumeric character. It is stuck on the DE and marked on the revision
number label. Figure 1.1 shows the disk drive revision number label format.

Figure 1.1 Disk drive revision number label

(1) Revision number marking at delivery
The machine revision number is indicated by crossing out up to the relevant
number in the relevant alphabetic character row using = marks (see Figure 1.2).
(2) Revision number change in the field
When a part is replaced in the field or other modifications are made, the machine
revision number may need to be changed. The level is indicated by crossing out
the relevant number in the relevant alphabetic character row using ¡ marks (see
Figure 1.2).
(3) Firmware code and revision
First 2-digit indicates a firmware code and rest 2-digit indicates its revision.
Note:
1-6
For a change of revision number after delivery, Fujitsu issues a
"Change Request/Notice" and the disk drive revision number after
the change. When a change is made at the user site, the revision
number level should be changed as described above.
Maintenance and Diagnosis
Disk drive revision number
Firmware code/revision
C141-F059-01EN