ACE Lab PC-3000 Express, Manual

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Seagate PC-3000 EXPRESS / UDMA / PORTABLE

F3 architecture

ACE Lab
Technical support: ts@acelab.ru
Phone: +7 863 201 50 06
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ts.acelaboratory.com
13. Appendix 5. Location of the read channel checkpoints on Barracuda F3 3.5" HDD ................................................ 58
13.1. PCB 100466725 REV A (DLAJ-4) .................................................................................................................... 58
13.2. PCB 100466824 REV A (UJAJ-6) ..................................................................................................................... 59
13.3. PCB 100466824 REV B (UJAJ-6) ..................................................................................................................... 60
13.4. PCB 100466824 REV C (UJAJ-6) ..................................................................................................................... 61
13.5. PCB 100496208 REV A ..................................................................................................................................... 62
13.6. PCB 100504364 REV B ..................................................................................................................................... 63
13.7. PCB 100512588 REV A ..................................................................................................................................... 64
13.8. PCB 100475720 REV A (ZKAJ-7) .................................................................................................................... 65
14. Appendix 6. Location of the checkpoints on Barracuda F3 2.5" HDD ...................................................................... 66
14.1. PCB 100536286 REV E ..................................................................................................................................... 66
14.2. PCB 100513573 REV B ..................................................................................................................................... 67
15. Appendix 7. Functional purpose of modules in Seagate Arch F3 HDD .................................................................... 68
16. Appendix 8. Correspondence between the service data modules and System Files in Barracuda 7200.12
(Pharaoh) HDD .......................................................................................................................................................... 69
1.
I
ntroduction
By the year 2008 Seagate evolved from manufacture of the classic 3.5" Barracuda HDD line (3.5" Barracuda - …
7200.7, 7200.8, 7200.9, 7200.10, Barracuda ES; 2.5" Momentus - … 5400.2, 5400.3, 5400.4 …) to the new F3
architecture intended to unify the production of ATA and SCSI drives. That new architecture is mostly based on
mechanics and the firmware kernel from the ATA hard drives, but a large part of firmware microarchitecture has been
revised in accordance with the design used in SCSI Seagate drives. ROM has been extended and supplemented with the
code enabling the controller board to function in ATA mode without the HDA attached. Furthermore, the manufacturer
moved to ROM adaptive data and HDD ID information (due to that fact a board disconnected from HDA can return via
the ATA interface HDD ID containing correct HDD information
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). However, together with useful effects of that
combination the new architecture also inherited a number of problems from both its parent lines. In particular, it
includes a number of problems related to translator corruption (issues typical of SCSI HDD), the Pending Bug problem,
etc. The new architecture also encountered some issues related to the integration of previously independent platforms
and addition of new functionality. In this guide we describe the Arch F3 platform, typical problems of its models, drive
diagnostics, and the methods available for work with these HDD in the PC-3000 suite.
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FW in the ROM of some Seagate drives contains the default HDD ID, which is updated with the information from
disk surface in individual drives. Moreover, when the firmware on disk surface appears to be inaccessible for some
reason, a drive may return the HDD ID template with the default model name and serial number (while the actual
serial number is preserved in the ROM data structures).