Fujitsu MHV2040AT Manual/User Guide - Page 20

Maintenance and Diagnosis 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. Disk drive revision number Firmware code/revision 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 4-digit indicates a firmware code and rest 4-digit indicates its revision. Note: 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. 1-6 C141-F072