Question: I use USB/IDE/SATA converters a lot and on the two that I have now, I sometimes get errors copying files to drives.
It only happens when I’m copying big files to the drive (big can mean as little as 100MB, I think it happens more often with bigger files – 300MB or more), and basically the copy will fail and I’ll get one or more error messages about “Delayed write failed.”
But if I disconnect the drive and re-connect it, I’ll usually be able to continue. ?(The file that was being copied will be corrupt, but otherwise the drive is fine.)
I just noticed a new type of flakiness: the data transfer rate can vary widely. ?I copied one set of files (5x300MB files) and it took 10+minutes, then I copied another set (approx. the same sizes) and it took less than a minute.
I haven’t done systematic testing, the other things I’m doing on my laptop at the same time might have some impact, and I haven’t cross-checked the two adapters I have and the 3 hard drives I’m working with to see if there’s a pattern. ?I’m more wondering if anyone else has seen anything like this.
Answer: Yes, many types of converters can be very flakey. ?The cheap ones can almost guarantee problems eventually. Make sure you have a clean solid connection with the drive connected. If you are using the USB ones, that is a shared bus on the computer. ?USB can be quick one day and slow the next depending on what s going on.
I find for short transfers, those adapters work fine, but if I am going to copy a whole hard drive, I would much rather use an external enclosure for the hard drive or connect it natively up to the computer (SATA drives have made this simple now). Data corruption can be very frustrating.