40

Probably due to a power outage, I suddenly lost access to a connected USB HDD yesterday. According to parted, I get the message “unknown partition table,” and gdisk says the GPT is corrupted. Using testdisk, I was able to copy the files to another drive and restore the partition table and mount the HDD.

Is it possible that the partition table was damaged by the power outage, or does this point to a different problem? Can I safely store data on such an HDD again, or should I replace it?

you are viewing a single comment's thread
view the rest of the comments
[-] KiwiTB@lemmy.world 2 points 20 hours ago

It's nothing to do with faulty firmware, it's that smart will only see 1 in 3 issues and as such is simply not good enough to use as actual diagnostics.

[-] muhyb@programming.dev 1 points 18 hours ago

I see. So, you're saying that occasionally checking smartctl (or having smartd as a daemon continuously), running badblocks time to time and maybe checking iostat not really enough? I mean, Linux is by far the most used OS on servers and datacenters, if these are not enough someone would write a proper tool I guess, don't you think?

[-] KiwiTB@lemmy.world 1 points 18 hours ago

Not at all. It takes a huge amount of work to do so, and the benefit of using raid etc is redundancy so they can afford for things to fail. Smart mon tools is a great example, the software is great but it needs it's database to support that drives functions to work well and they can't and don't support everything.

this post was submitted on 25 May 2026
40 points (100.0% liked)

Linux Questions

3930 readers
24 users here now

Linux questions Rules (in addition of the Lemmy.zip rules)

Tips for giving and receiving help

Any rule violations will result in disciplinary actions

founded 2 years ago
MODERATORS