Good morning,
(background)
* Something went wrong with a back-up to a USB-3.0 stick this past May.
Most everything was recovered, but not everything. I was told that the
stick itself was probably not what failed. There are a few other more
likely causes of the failure, but I cannot diagnose it. One major
possibility is that the desktop on which I was trying to read it damaged
some of the contents of the stick.
* Many of you might recall 3.5 inch (about 8.8 cm), 1.44 MB floppys from
back in the late 1980s. The disc cases had "a rectangular hole in one
corner which, if obstructed, write-enables the disk. A sliding detented
piece can be moved to block or reveal the part of the rectangular hole
that is sensed by the drive." (from wikipedia).
* For me, back-ups are written regularly, but searched or read rarely.
(So write speed is more important than read speed.)
I am looking for a way of doing back-ups such the media can be hardware
write-protected when wanting to find or recover something from back-up.
My back-ups are typically tens of gigabytes each, and I like to keep at
least 3.
(requirements)
* local (not cloud or other internet).
* at least 128 GB, more is better.
* write speed as good as or better than USB-3.2.
(very strongly preferred)
* write lockable and unlockable, just like them old 3.5 inch, 1.44 MB
floppys. Note that I want hardware locking and unlocking (like those
floppies), not software locking/unlocking (such as with command line
options).
(preferred)
* re-writable as opposed to write once only.
Blu-ray: is write-once-only, and is much too slow (4.5 MB/sec).
SDXC: some is lockable, but is too slow (100 MB/sec).
By comparison, I read that USB-3.2 realistically does 500-2000 MB/sec.
What do you recommend?
Side question: I searched for USB-4.2 and USB-4 hardware, hubs, and
sticks. I found nothing. Am I correct in assuming these are not yet
available?
--
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