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Is it possible to replace the internal drive ? Will it take a regular 2.5" 1TB drive from Western Digital ? I mean this both physically (as a comment in the other question says the original drive has slightly different dimensions than usual, I assume non-slim, 2.5" drive) and w.r.t. firmware of the SATA/Firewire converter accepting regular drive.
좋은 질문입니까?
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I replaced the original drive WD Blue Scorpio drive WD10TPVT with WD Blue WD10JPVX and the drive was successfully detected both on Linux and old macOS. I formatted the drive APFS and used as Time machine drive. It just completed the initial backup and bunch of incrementals. My theory is that any WD Blue 2.5" drive would do. The only trouble is that the internal CD-ROM like partition of the drive is reported by the system upon connecting the drive as 'The drive is not readable'. Selecting Ignore will make the message go away and the disk still works fine. In Disk Utility this partition is shown as 'WD Virtual CD 071D Media'. I vaguely remember this partition could be deleted somehow, perhaps via some WD utility.
Here's the drive performing initial backup:
and here is the detailed system report:
For the record, I used T6 tool head for the inner drive screws and T4 for the outer case.
My more detailed notes about this are on https://gist.github.com/vladak/7f0be036b...
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I wouldn't bother :-(. These use a bridge board but in the mid 2000s WD added PCB encryption. If the PCB ever fails (and it will at some point, the PCBs suck and are a common failure point), you will need to format the drive and throw your data out, repair it at the board level or source the same drive as the dead one for the PCB so you can copy the data off of the drive.
Get a NVMe SSD (1-2TB), a enclosure like the UGREEN CM642 or CM850 and run that - I love WD for their drives (especially the Black and HGST drives, especially the NAS/Server drives), but I don't love their EHDs due to the USB3 drives putting the POINT OF FAILURE ON THE PCB and encrypting the drive with a master key requiring the WD PCB. 2015+ ones (when they soldered the USB port to the PCB) added unique encryption keys, anything prior that shows blank has the generic AES key that was shared across that drive platform.
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I've been using the My Passport Studio mainly because it has Firewire connector. It allowed me to use it as a Time machine backup disk on my old mac mini while saving the USB ports for other things. In such scenario the opaque disk encryption does not matter (unless the PCB failed along with the mac mini internal drive but for that I have another Time machine backup on my NAS), however it is good to know it is there. I wonder whether the non-unique key has leaked along with the on-disk format ?
@vlada69550 It's on the PCB so you can use any WD PCB from the same series, capacity usually doesn't matter.
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Sadly Western Digital uses a custom drive in this series of drives. The drives logic board also holds the FireWire & USB interface logic as well.
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These predate that - USB3 Micro drives have the USB on the PCB. These use a bridge board, but a lot of them have encrypted PCBs where if the PCB dies you can't see the data but as long as you source another PCB from the same drive series, they unlock. It's a master key, they aren't all unique.
The PCB contains 2 largeish chips, one of them being OXUF943SE-LQAG which is USB/Firewire controller and according to the datasheet on https://www.alldatasheet.com/datasheet-p... it is "bridging between FireWire800 or USB2.0 interface to a single SATA hard disk." I read elsewhere that often the WD enclosures are likely to refuse disks other than from WD (https://macandegg.com/2017/04/diy-replac...) and in fact WD support materials for WD My Book contains big red warning about the replacement drives to be WD Green drives (https://support-en.wd.com/app/answers/de...). In this case the enclosure seems to contain 1TB WD10TPVT Scorpio Blue (according to https://www.storagereview.com/review/wes..., I no longer have the failed drive) so I wonder if I should try the luck with some WD Blue drives.
So far I tried a Seagate spinning drive - the enclosure was detected on Linux and the disk was spinning, however it was not made available to the operating system, which is not surprising given the above. I also tried Intel and Samsung SSDs with SATA however there one cannot easily tell whether the drive was powered on.
Another indication that the PCB contains the conversion logic is the 2nd largest chip which is LSI L-FW843-07. There is not much information I have been able to find on-line, however https://www.electronicdesign.com/technol... (from 2008) says: "Claiming high write performance at 17% less power over previous generations, three additions to the LSI TrueFIRE family of IEEE 1394 FireWire devices ... The LSI FW843 1394B 800 Mb/s PHY connects to high-speed peripherals at the same transfer rate ... The FW843 is sampling now, with production expected to ramp in the first quarter of 2009."
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