[gentoo-user] [OT] After power failure, SATA hd not recognized a bunch of times: do I have to worry?

[b.n.]

Hi,

Today, while I was at work, there had been a power failure. My Gentoo 
box was on when it happened.

I found the box was not off, but it had tried to reboot. But it showed 
no Linux login prompt; instead, BIOS told me that wanted a floppy disk...

I rebooted a bunch of times, and everytime it behaved like there were no 
more hard disks. It looked for a bootsector in the CD/DVD drives and in 
the floppy drive, but behaved like the SATA HD did not exist. I tried to 
boot a Knoppix and its fstab showed no trace of an hard disk. Even more 
strange, at startup it

I was quite terrified, but after a couple more reboots it got the hd 
again, apparently flawlessly... and now I'm here writing to you from the 
box.

What I want to know is: is it a common glitch in case of power failures 
or it is the symptom of something that is going very wrong? And how can 
I know if it's the second? (I have smartctl, but I'm not very smart at 
using it).

Thanks,

m.
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