I’m running a Ubuntu server on my old laptop with an external HDD connected to it. The external HDD is powered independently from the laptop, as it is plugged into the wall.
During a power outage, my laptop remains operational due to its battery, but the HDD shuts down. When power is restored, my laptop does not automatically remount the HDD, and I have to reboot the system manually to access it.
Does anyone know how I can resolve this issue?
Edit: Not sure if this added context changes anything, but this is the HDD I’m using. It’s a 3.5" HDD that gets its power directly from the wall.
@Shimitar I have used CyberPower UPS for my computer and other devices with HDD or SDD. They are not cheap, but they are cheaper than buying new disks if the filesystem is unrepairable (which happens).
May I add a couple important points?
— Speed: It matters how FAST your UPS (Uninterruptible Power Supply) can switch to battery power. If it is not fast enough, your disk might still get clobbered. I have had the CyberPower for years and it has saved me from voltage transients and power loss multiple times (but …read on).
— Battery: The battery power has to be able to keep your computer on until either you can shut it down safely or power returns. What you’re buying is time.
— Degradation: — I recently learned (the hard way) that electronics degrade after enough incidents that they no longer switch fast enough. Few people read the fine print to know the rating of their surge protectors. Ordinary power surge protectors are one time use only. They use a capacitor to absorb the voltage spike and that gets burned out. The strip will still provide power, but no more surge protection. It should be thrown out. That’s true of more hardened surge protectors and UPS like my CyberPower. They may protect you from multiple surges, but they wear out too. As I said, I learned the hard way in a recent lightning storm.
Good Luck!