01BTC10 Asked: 2012-02-10 07:12:51 +0800 CST2012-02-10 07:12:51 +0800 CST 2012-02-10 07:12:51 +0800 CST How to know when a drive failed in RAID1 772 I want to make sure my backup are safe. I use one main SSD running Ubuntu and I have 2X 2Tb HDD in RAID1 for my data. How to know when a disk fail? raid hard-drive 2 Answers Voted Best Answer Savvas Radevic 2012-02-10T07:22:09+08:002012-02-10T07:22:09+08:00 You could definitely check the disk SMART data. If you use ubuntu desktop, run the Disk utility in ubuntu: If you use a server, you can install smartmontools: sudo apt-get install smartmontools sudo smartctl -a /dev/sdx where you substitute "/dev/sdx" with your drive. charlesbridge 2012-02-10T11:48:33+08:002012-02-10T11:48:33+08:00 If you don't have a GUI, you can ask mdadm about the status of the RAID array sudo mdadm --detail /dev/md0 That will list the Active, Working, Failed, and Spare devices for the array
You could definitely check the disk SMART data.
If you use ubuntu desktop, run the
Disk utilityin ubuntu:If you use a server, you can install smartmontools:
where you substitute "/dev/sdx" with your drive.
If you don't have a GUI, you can ask
mdadmabout the status of the RAID arrayThat will list the Active, Working, Failed, and Spare devices for the array