Noob

I mounted it so I could answer your question. Explorer shows Media to have 160GB free, which differs from the free space being reported in the unRAID GUI.

It doesn't report free space because the share isn't mounted, it's mapped. See screenshot of "My Computer" for reference.

It was already set that way, but I changed it, applied the change, and set it back. Still getting the same error.

Very little has changed since I posted my last diagnositc, other than shuffling some drives around. New data is attached. In order, the answers to your questions are: 1) There are six data disks in the array. Free space is as follows: 31GB, 125GB, 71GB, 186GB, 7GB, 250GB. Total free space is nearly 700GB. 2) I'm copying to the Media share which is set to include all drives. The error pops up in Windows File Explorer when I try to drag & drop my new data onto the share. See attached error message screenshot. It is immediate, the transfer doesn't even begin. The 140GB is split over roughly 20 files. 3) Yes, I understand how minimum free space works. I don't anticipate moving any files to the media share that are over 40GB at this time. If I do in the future, I will update the setting accordingly. Thanks for your help.

So, I'm back again guys. Unbalance worked itself out after I manually rearranged some files, but I still can't copy anything large to my array. I have 700GB free with minimum free space set to 40GB. When I try to copy over 140GB unRAID gives me an error saying I'm short 80GB (same error as in my initial post). What causes this? How can I try to resolve it? Having an array that won't accept data is wearing on me :-/

Thanks so much! I appreciate your help. Exporting the flash drive as a Samba share was a perfect solution.

I mentioned the old data in my original post. I suspected this was the trouble with formatting the disk and dropping it from the array. So, if I must zero the disk before reassigning it as parity, how can I access the flash drive to add the "clear-me" script to the correct folder? Are there any options other than SSH?

I've looked over the documentation on the Wiki's Shrink Array page: https://lime-technology.com/wiki/index.php/Shrink_array#The_.22Clear_Drive_Then_Remove_Drive.22_Method This process is quite long considering how simple the task is that I'm trying to accomplish. Perhaps I'm not understanding the way parity works? It looks to me like some of these steps aren't necessary. I emptied my drive using rclone, so it has an XFS file system on it but contains no files/folders. It is not empty, though, because that data is still on the platter. Rather than using the "clear-me" script and writing zeroes to the entire disk, can't I reformat it to another file system and then drop it from the array before writing any data to it? The Wiki says when the disk is clean formatted parity will be automatically updated to reflect that the disk is empty. Why is there a second step of using the disk clear script at all? I'm trying to accomplish reassigning this emptied data disk as a 2nd parity disk. If there's an easier way to do this than dropping it and reassigning it, please let me know. My only requirement is that parity not be lost during the reassignment. Thanks guys!

Bingo! I think I've sorted out this problem. The folder that is causing unBalance to generate an error is 506GB, whereas my largest target disk is only 500GB. It looks like unBalance doesn't want to split the folder to fit on two drives, so I need any single drive to have at least 506GB of space in order to make the move. I'm going to manually shuffle a few files off of that drive and onto another and I expect unBalance will move right along after that. Thank you all for the suggestions Live and learn!

I never configured that setting, so that must have been the default that came with the plugin. Any idea how to adjust it? EDIT: I found it with only a cursory amount of searching. See screenshot. It's 450MB, so that should not be creating this failure. What's next? Anyone have additional suggestions?

Thank you all for your helpful replies. To be clear, I understand that unRAID doesn't stripe data. My minimum free space settings are set above what I need by quite a lot and, even considering that, I have space left, but unRAID will not allow me to store data to the disk. My split settings are as generous as the GUI will allow me to configure them to be. I found the log for unBalance, which I think is a helpful addition to the diagnostics. I've included a helpful execpt from unBalance, indicating that each drive has reserved free space of 450000000 (is that 45GB?), which doesn't correspond to any of my share settings. Any help is greatly appreciated. unBalance_Log.txt diagnostics-20170215-0053.zip

I found it! The Docker Safe New Permissions Command is a new option located in the tools tab of the unRAID GUI. It's not run from within the App.

I've looked through this thread a little bit (admittedly, I didn't go all the way to the beginning), but I cannot find sufficient information on the Docker New Safe Permissions Command. How do I run it? Where do I run it from? Thanks guys! Great plugin, I'm just a little lost.

First, I don't know how to post my diagnostics. More detail would be great. Second, my split level for all shares is set to "Automatically split any directory as required," so I don't believe that to be the cause.

I've had two failures during my current evaluation/trial period that both seem odd to me. Perhaps someone more familiar can explain how the storage limits work in unRAID. First, my array had 400GB of space left in it and I attempted to copy 150GB to it using Windows File Explorer. I got an error stating that I was 80GB short to complete the transfer. That roughly corresponded to the minimum free space setting I configured for the share earlier. I went back to the settings page for the share, made minimum free space zero, and tried to copy a second time. Same error: 80GB short for a 150GB copy. I have 400GB free. What gives? Second, I'm running the Unbalance plugin to clear a drive with 900GB on it in order to assign that drive my second parity disk after it's empty. I added two 500GB disks to the array, precleared and formatted them, and they had over 900GB of free space collectively. Using unbalance, I selected the 900GB drive as the "From" drive, and left all of the other drives checked as "To" drives. Unbalance gave me an error stating that I didn't have enough space available to clear the 900GB of data off my drive. Lies! I had about 250GB on the array before I added the two 500GB drives. I have more space than I need for this transfer. What gives? Why am I getting so many weird and blatantly wrong free space errors with unRAID?

Just found this thread while coming to request Duplicati myself. +1 for Duplicati coming to unRAID!

I'm having a non-permissions related issue. When I try to mount a remote SMB share, nothing happens. I put in the path, credentials, and share name. Save it. Click mount. Nothing happens. Check the log and it's empty. Any suggestions on how I might go about troubleshooting something like this?

I'm checking back in after a year away from UnRAID. Now that 6.2 has dropped, can anyone update me on the status of BTRFS in unRAID and/or the ability to implement data integrity checksumming via a plugin? I found the Dynamix File Integrity thread, not sure whether that is what I want or not. It seems to "miss" lots of files based on the conversations going on over there. Any other plugins available?

This thread has gone in a very helpful direction. I'm in the "I don't like to keep off-site backups of huge files" group. I think the take away here is that we need something (Par2 or otherwise) built in to unRAID that performs checksumming, validation, and rebuild. It needs to be easy to use through the GUI and it needs to be well-tested.

Question about the basic license. Do you get four drives total, or four data drives? I'm not clear on whether parity disks and cache drives count as part of the array, or whether they count toward the device limit. I'm hoping to have 1 parity drive, 1 cache drive, and three or four data drives. Depending on how you calculate for purposes of licensing, I may need a more advanced license than basic. Can you please advise, LimeTech?

Fair enough... Since this is an important issue to you, I would sincerely hope you ditch the Optiplex 760 and get something that's going to support ECC memory. Already did. I dropped it for power consumption, not ECC, but that was a bonus that came along with upgrading hardware. 15 watts idle draw isn't too bad, at least compared to the 85+ that I had.

That's a fair enough point for data that gets updated from time-to-time. The way most backup software works, if the data silently rots on the source after it is stored on the server, the rot will not be copied to the server because the archive flag/timestamp will not update with silent corruption. In any case, I'm worried about data that gets archived to the server and doesn't get looked at for four or five years. This has been the sole missing feature keeping me from buying this product. Until something gives at LT or with another NAS dev group, I'll just keep lurking around these threads for updates on the situation.

Yup, that will give you the features that you want for the time being. I've decided against that route because Par2 leaves little files all over the place. They are necessary in order to be able to rebuild, but they really clutter up my file/folder structure. You can hide the Par2 files in your browser/file explorer, but just knowing they are there really bugs me. I'm going to wait for some kind of btrfs implementation myself.

So, BTSync and SyncThing aren't usually considered backups because they replicate file/folder deletions. If you accidentally delete something on your PC, the backup copy also gets deleted when the sync operation catches up to the change. That's pretty much the opposite of what you want your backup to do. Files sometimes disappear due to corruption as well ... BTSync would delete those from the backup also. I've found the best way to do remote backups from one PC to another is Crashplan Desktop. It's free to use for that purpose (you only pay a service fee if you backup to their cloud). When you install the application, just configure your PC to backup to a "friend's" computer. It will ask you for the other computers ID (available in that PCs crashplan app) and everything will be automated from there.

I haven't needed to replace a drive yet, but doesn't unRAID preclear it for you if you just try to stick it in the array? So really, you just power down, replace the drive, and reassign it. My experience so far has just been growing the array by adding more disks, and it's stupid easy to do.