January 18, 201511 yr I got one parity and 5 data disks Theres a share "Movies" Yesterday i tried to watch a movie but it said it wasnt there anymore I checked and indeed, the share doesnt contain the movie anymore I checked others, and it seems some are missing, dont know how many .. Parity said it was in sync, The share is still there, and on data disk 3 it doesnt contain the folder anymore so i think it should be there, not sure though Any advice what i can do? I want them back but dont know how, nor did i delete them. and i dont know where they should be
January 18, 201511 yr Community Expert You could try stopping the array and then rebooting the system. I have seen disks sometimes drop offline without an obvious indication in the GUI. If it has dropped offline you should check the SATA and Power cables are well seated.
January 18, 201511 yr Author stopping and rebooting doesnt help should i disconnect them boot without it then add it back ?
January 18, 201511 yr At this point it feels like you should stop all activity on the server and wait for someone with more knowledge than me to walk you through a file system check. Randomly disappearing files is never a good sign and you should be careful.
January 18, 201511 yr Community Expert I think that it would be a good idea to post a syslog to see if that gives any clue to what is happening.
January 18, 201511 yr Did you by any chance move some of your movies around on the server? If you copied the movies from one disk to the movie share, they would be wiped out due to the "share copy bug".
January 19, 201511 yr Author No didnt move or copy antything. Do you guys see anying in log? What should i do? Theres no rebuild possibility?
January 19, 201511 yr Community Expert There does not appear to be anything in the log. Have you tried looking at the contents of disk3 at the Linux level to see if the folders/files appear to be there? Files do not disappear without some sort of user intervention unless there is a hardware problem on a disk, and there are no signs of that in the log. Another common cause of files going 'missing' is the user accidentally dragging them into another folder so that they are moved a level down in the folder hierarchy. It might be worth doing a search at the PC end of the disk3 share to see if this is a possibility?
January 19, 201511 yr Author Using search doesnt bring up anything. Are logs from past days all being saved? It might contain something in earlier logs?
January 19, 201511 yr Community Expert Are logs from past days all being saved? It might contain something in earlier logs? The log is only kept in RAM so each time you reboot the system earlier logs are lost unless you first copy them to persistent storage (e.g. the USB stick).
January 19, 201511 yr Is disk3 empty? Are you sure disk3 used to contain movies? Did you run a parity check? If so, were there any parity sync errors? (If you haven't run it yet, suggest you run a non-correcting check). If the answers are yes, yes, yes, and no sync errors, then I would say, somehow or other, the folder was deleted, the disk reformatted, or something. Your next step would be to run a recovery that would attempt to find and recover deleted files. What filesystem does the disk use? Is it the default (reiserfs) or did you set it to XFS? Suggest you avoid any updates (writes) on your array until you sort this out.
January 19, 201511 yr Author No disk3 isnt empty, non of them are Free space on disks looks normal Didnt run a check yet It is running now with non-correcting Disks uses indeed reiserfs I'm not 100% sure its disk 3 But i am 100% sure there are some movies missing My wife didnt delete anything either Running check now, if it says no errors then what? Run a recovery? how?
January 19, 201511 yr Community Expert See from syslog you're running 6b12. Did you ever have b7 or b8? Not sure if the file corruption issue from those versions could cause missing files or not. Can you name or partially name a specific file you think is missing? Maybe someone could post a linux "find" command you could use to see if the file is really gone or just moved somewhere.
January 19, 201511 yr No disk3 isnt empty, non of them are Free space on disks looks normal Didnt run a check yet It is running now with non-correcting Disks uses indeed reiserfs I'm not 100% sure its disk 3 But i am 100% sure there are some movies missing My wife didnt delete anything either Running check now, if it says no errors then what? Run a recovery? how? Not doubting you. I know that you did not intentionally delete anything. But all signs are pointing at some sort of accidental deletion as opposed to a system problem. Even the "share copy" bug (that I found and documented BTW), would cause a zero length file to remain - it would not completely remove the file. Unless the parity check finds problems (which I am doubting), then it may always be a mystery. It is a good idea to keep backups (as I'm sure you know). So where to go from here. There is a command line tool called reiserfsck that you can run against a disk. It has a variety of modes. My main experience with it has been in the most catastrophic situation, when the structure of the disk has been corrupted. It has done an admirable job at recovering data. But what you will need is to run it to undelete files. I have never done that, although others in the forum probably have. I would suggest that, if you are technically inclined, that you search for instructions on the tool and read up on how it works and the options you would like to use. I think you would want to start the array in maintenance mode, and refer to the device by its "md" device name (i.e., /dev/md3 for disk 3) when you run it. Once you have figured it all out, suggest you post back the exact syntax and steps you plan to perform for someone to verify. If the issue is not on disk3, you would have to run it on other suspected disks. As I understand it, it will create a "Lost+Found" folder with the undeleted files. The file names may or may not be preserved. Good luck! See from syslog you're running 6b12. Did you ever have b7 or b8? Not sure if the file corruption issue from those versions could cause missing files or not. Can you name or partially name a specific file you think is missing? Maybe someone could post a linux "find" command you could use to see if the file is really gone or just moved somewhere. Just seeing this as I was about to post. Sounds like a good idea if the file is lost in some other directory as opposed to truly deleted!
January 20, 201511 yr Author No never ran b7 or b8 Coming from 5.0. Parity check didnt find any errors. However disk space is on all disks looking normal. It might be somewhere but i cant find those movies. Can it be hidden or someting? Or else i dont know. Accidently deleted but then i should have more diskspace no?
January 20, 201511 yr Author Yes! Phew ! I found them ! They were accidently moved to another folder in folder in folder... Phew It was disc 3 as i assumed Phewn, solved, so happy !
January 20, 201511 yr All too easy to do if you use drag 'n drop (I NEVER drag and drop files). Good idea to keep a good search tool installed that makes it easy to look for files ... that would have saved you a lot of grief here.
January 20, 201511 yr Yes! Phew ! I found them ! They were accidently moved to another folder in folder in folder... Phew It was disc 3 as i assumed Phewn, solved, so happy ! Great news! Glad this mystery is solved.
January 20, 201511 yr Community Expert All too easy to do if you use drag 'n drop (I NEVER drag and drop files). Good idea to keep a good search tool installed that makes it easy to look for files ... that would have saved you a lot of grief here. I never drag and drop files either. It's just as easy to right-click, copy or cut, right-click, paste. Dragging often winds up with the wrong folder being targeted while Windows automatically scrolls things for you.
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