Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

I don't have physical access to the machine, so I can't unplug the drive.

# hdparm -I /dev/sda | grep frozen
            frozen

The advice I've read elsewhere is to hotplug the drive, pull the power / sata cables while the machine is running. Those are not possible in this situation as I don't have physical access. I've tried power cycling the machine through the host's control panel a few times, but that hasn't worked.

Is there any way I can unfreeze (unfrozen?) the drive without physical access?

share|improve this question
    
Have you tried rebooting? –  HopelessN00b Oct 3 '12 at 16:44

2 Answers 2

"Freezing" the drive is done by the system BIOS pre-boot when the hard drive has a password enabled. Some BIOSes always freeze drives, though this usually only happens with laptops.

You can try one of two things to unfreeze the drive, but both of them require physical access, or at least console access:

  1. Remove the hard drive password in the BIOS, and reboot.
    • If your BIOS always freezes drives, contact the hardware vendor for a fixed BIOS.
  2. Hotplug the drive, as you noted above.
share|improve this answer
2  
SSD also can be unstable / old firmware. Sadly, there is nothing you can do. Transalte to "my friends car does not start, i am 8000km away, how can i repair it". You can not. –  TomTom Oct 3 '12 at 18:08

Suspend & resume should unfreeze the hard-drives.

share|improve this answer
1  
This is really a comment, not an answer. With a bit more rep, you will be able to post comments. –  slm Dec 2 '13 at 0:24
1  
@slm no, it's actually an answer. Since BIOS freezes all hard-drives on boot, thus most common option (after hot-plugging post-boot) is to suspend & resume. Since then drives will come up unfrozen, without need to hot-plug/unplug hard-drives. Also if there is remote management, one might even succeed performing this unattended. –  Dima Dec 2 '13 at 23:55
    
I'm not doubting this will fix it, rather in it's current form this seems hardly like a stand alone answer in its current form. Perhaps you could sight a reference or too to bolster this answer a bit? –  slm Dec 3 '13 at 0:06

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.