Teardown: Seagate Barracuda DrivePosted: October 6, 2010
I had to clean house for an inspection and had several very dead hard drives around, none of which could be sent back for warranty, so I dismantled them. Most drives are easily disassembled with miniature Torx bits which are readily available from many vendors. (here’s one such set.)
This Seagate Barracuda died in a “normal” way, its SMART data showing increasing reallocated sectors indicating slow-motion death. Its controller board is quite small:
Almost all hard drives these days use the same Samsung 32 meg cache memory. LSI is a familiar controller vendor and one of their chips is here. The ST Microelectronics SMOOTH chip is apparently a motor driver—I’ve seen it in several drives.
The drive lost its warranty due to an external enclosure and a very badly designed SATA pigtail that broke the connector on the drive. The enclosure had numerous other problems, ensuring that I will not use that make again anytime soon.
Next up, Western Digital, torn apart.