Bad drive

adadani · 09-02-2014, 04:33 PM

Hi everyone,

Thanks for taking the time to help me here. I just need to know if there's any way I can check on the OS if there's a failed drive on a SAN. I'm running CentOS.

AlucardZero · 09-02-2014, 05:34 PM

using the management software that comes with or for the SAN, sure

adadani · 09-02-2014, 11:13 PM

So I found out it's RAID 1 but how can I check for any bad sectors?

jefro · 09-03-2014, 04:18 PM

Tell us more about this san. Generally one uses smart diags or the hard drive OEM diags to determine the actual quality of a physical drive.

adadani · 09-03-2014, 05:54 PM

The SAN is basically a collection of disks that we put together running on a CentOS box. We don't have any diagnostic tools or anything like that. I discovered the potentially bad drive because the light on the drive does not work, however, all the other lights are on. Just to make sure I don't have a bad light, I was wondering if there was any way I could check all the disks on this box. I have already ran cat /proc/mdstat and /var/log/messages, but nothing sticks out.

frankbell · 09-03-2014, 08:38 PM

This article explains how to use smartctl (the SMART tools) to check a RAID array.

http://www.cyberciti.biz/faq/linux-c...d-controllers/

adadani · 09-04-2014, 11:53 PM

Great! Thank you for the information. I will let you know what happens, thanks again!

adadani · 09-09-2014, 07:58 PM

Looks like the drive was seated properly and not active. We had to re-activate it and add it to the array.

Thanks for all the help!