October 13, 201411 yr I was watching a TV show with my wife when all of a sudden my XBMC box froze. I bounced the XBMC box, but it wouldn't connect to the unRAID server. I walked downstairs and saw that the HDD activity light on my server was solid. I tried accessing it from another computer, but had no luck. I forcibly rebooted the unRAID server using the button and was able to access the web interface. However, when I start the array, the machine freezes and becomes unresponsive. The HDD activity light goes solid, but the machine will respond to a ping command. The web interface and smb stops working. Can someone help me out with troubleshooting? I have about 11TB and don't want to lose data.
October 13, 201411 yr Do you have a console attached (or have telnet access)? I do not think that there is enough information in your post to guess at what to do. If you can then you should log in and get a copy of the syslog (from /var/log/syslog) to see if it is showing anything useful. If you do not have network access then you can copy the file to the USB stick and take that to another machine to get at it. I would expect that your data is probably intact, although from your description it is possible that one drive is having issues.
October 13, 201411 yr Author Telnet still works and i was able to get a copy of the log file I'm guessing that disk1 is bad based on the log, but hopefully someone can confirm that is the issue and there aren't multiple problems. I knew i should have had a precleared disk lying around :'( an i just remove the old drive and install a new one and boot the server? Will unraid clear the drive and rebuild the array for me automatically? Obviously I wont need to be using the server until the data is rebuilt. syslog.zip
October 13, 201411 yr It certainly looks as disk1 has an issue at the moment. The issue is whether it is a disk that is failing or some external factor. It might just be worth checking the SATA/Power cabling first just to check one of them has not worked slightly loose. It might also be worth seeing if you can get a SMART report to see if that indicates a disk problem.
October 13, 201411 yr Author How do I tell which disc is which? I see that it has the model number and some other numbers in the web interface, but none of them seem to correlate to anything on the sticker of the disks.
October 13, 201411 yr The Web DUI will show the model and serial number. This information should be part of the information on the label on each drive.
October 13, 201411 yr Author I wonder if it's different with Hitachi drives? The unRAID GUI shows just numbers, but the S/N is a combination of numbers and letters. Therr didn't seem to be a correlation. I'll check again when I get home just to be sure.
October 13, 201411 yr Author You were correct. I was just looking at the wrong thing. I think I got it. I replaced Disk1 with a new Seagate. I selected that with the drop down menu and it said "Upgrading Disk". Then I clicked the "Yes I want to do that" box and hit "Start". It says "Data-Rebuild in Progress". Was I supposed to Preclear the drive, or will it do that automatically? When I've added new drives to expand the array in the past, it took the array offline and precleared the disk automatically. I guess I just have to wait a few hours and everything will be back to normal?
October 13, 201411 yr You were correct. I was just looking at the wrong thing. I think I got it. I replaced Disk1 with a new Seagate. I selected that with the drop down menu and it said "Upgrading Disk". Then I clicked the "Yes I want to do that" box and hit "Start". It says "Data-Rebuild in Progress". Good - that sounds like what you want to happen. Was I supposed to Preclear the drive, or will it do that automatically? When I've added new drives to expand the array in the past, it took the array offline and precleared the disk automatically. Pre-clear is not necessary when rebuilding a disk except as a confidence check before using the disk for the rebuild. It will not shorten the rebuild time.
October 13, 201411 yr Author Thank you for the time you have spent helping me with my drive failure itimpi. I really appreciate it! The rebuild is still going so I think everything will be just fine in a few hours. Now I just need to order another drive since I'm running out of space. I'm just trying to decide which HDD I want to buy. The Seagate I just picked up wasn't a bad price, but I hesitate to have multiple drives that are the same model number. I remember reading recommendations against buying all the same drives.
October 13, 201411 yr I'm just trying to decide which HDD I want to buy. The Seagate I just picked up wasn't a bad price, but I hesitate to have multiple drives that are the same model number. I remember reading recommendations against buying all the same drives. I can't quite understand those recommendations. What I do believe many people feel that getting two (or more) disks at the same time can be a risk. (They are supposing that all of the disks would be from the same manufacturing lot. If that lot was a bad one, then all of the disks would fail quicker than expected. To be fair, the converse could also be true. The quality of the disks in that lot was higher than normal and the disks would last longer!) What is more important is the inherent quality of that particular model of hard disk. This includes many factors: Design, manufacturing processes, quality of incoming raw material and parts, attitude of the manufacturing personal, etc. And that inherent quality can't be determined until the product has been in the field for a couple of years. By that time, the model will approaching the end of its manufacturing life... I personally believe that the best you can do is to read the reviews of all of the users on Amazon, Newegg, etc. and get the model that has the lowest ratio of 'bad' reviews vs 'good' reviews.
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