On Thu, Aug 21, 2025 at 6:15 PM home user via users < users@lists.fedoraproject.org> wrote:
> 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? > LTO, like LTO-10. LTO tapes usually have a write-protect switch. Older LTO works fine, too. I still have LTO-6 at my house for archiving my important stuff. I move the LTO tape into the shed in my backyard in case the house burns down. > 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? Jeff
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