RobJ Posted April 19, 2016 Share Posted April 19, 2016 This thread is reserved for Frequently Asked Questions, concerning unRAID as a NAS, its setup, operation, management, and troubleshooting. Please do not ask for support here, such requests and anything off-topic will be deleted or moved, probably to the FAQ feedback topic. If you wish to comment on the current FAQ posts, or have suggestions or requests for the FAQ, please put them in the FAQ feedback topic. Thank you! Index to common questions Some are from the wiki FAQ, some from this thread, and some from the LimeTech web site. There are many more questions with answers on the wiki FAQ. Getting Started What is unRAID? What are the minimum system requirements? How is unRAID licensed? What counts as a drive against my license storage device limit? What are the current device limits for each license? How does parity work? How hard is unRAID to use if I don't know Linux? How do I get started? How do I know if I've configured my server properly? General Questions How do I get help? What causes unclean shutdowns? (Why does a parity check happen whenever I turn on my server?) Please explain how Linux permissions work! My VM or Docker created some files but I can't access them from Windows? Why can't I delete a file (without permissions from root/nobody/Unix user/999/etc)? Why is so much of my RAM being used? What are the requirements for the second parity disk? Does the second parity drive have to be the same size as the first? What is "Boot GUI mode", and how do I change to it? Can I reorder my drives within my array? Why is the webGUI not displaying any of my shares, yet I can see them over the network? Why can't unRAID find or add my SAS drive? I have a new SAS drive. How do I get unRAID to recognize and assign it? I set a share to private, and created a user with read/write permissions for that share. But on my Windows PC, when I try to navigate to that share, why does it say I don't have access when I enter that user name and password? I have software that requires using port 80. How do I change the HTTP port that unRAID uses? Is there a way to create a Windows shortcut for shutting down the unRAID server? I have an unmountable BTRFS data disk, what can I do to recover my data? How do I search the forum? (No, its not always obvious) (obsolete?) Cache Drive/Pool How do I add a disk to create a redundant cache pool? How do I remove a cache pool disk? How do I replace or upgrade a cache pool disk? I have two different size cache devices, why is the reported space incorrect? Can I change my cache pool to RAID0 or other modes? How can I monitor a btrfs pool for read/write errors? How do I replace/upgrade my single cache device? (unRAID v6.2 and above only) How do I replace my cache drive? (all versions) Why are my cache disk(s) unassigned after a reboot? Can you explain the Cache drive option types, and what is the difference between them? I have an unmountable BTRFS cache disk or pool, what can I do to recover my data? Why are files not being moved by the mover? Plugins Why am I unable to install plugins? Is there documentation for the unRAID plugin system? Maintenance and Troubleshooting I need help! What do I do? My Proxy is no longer working How do I use the Syslog Server? Why do I see csrf errors in my syslog? How can I stop mover from running? How do I know if I've configured my server properly? What do I do if I get a red X next to a hard disk? Why is my disk being marked as Read-Only? I have corruption in a file system, how do I fix it? I'm getting an error message " Failed to find user 'avahi' ". What do I do? Why after upgrading to a 6.2 version is my webGUI so slow? Why is my webGUI taking so long between pages? Why is my GUI Slow and/or unresponsive? Why does ARRAY STARTED STALE CONFIGURATION appear at the bottom of the webUI? What are "Page Allocation Stalls?" Why do I see "Cannot open root device null" and unRaid will not boot? Fix Common Problems is telling me that Write Cache is disabled on a drive. What do I do? How to reformat a SAS HDD to different block sizes (mainly 512) to use in UNRAID? How can I use ddrescue to recover data from a failing disk? I'm getting low read speeds from my unRAID server, is there a fix? How can I calibrate my UPS, silence alarms, change battery dates using apcupsd? What can I do to keep my Ryzen based server from crashing/locking up with Unraid? Where can I see what folders are taking up RAM? My system won't properly wakeup from S3 Sleep unRAID FAQ's and Guides - * Guides and Videos - comprehensive collection of all unRAID guides (please let us know if you find one that's missing) * FAQ for unRAID v6 on the forums, general NAS questions, not for Dockers or VM's * FAQ for unRAID v6 on the unRAID wiki - it has a tremendous amount of information, questions and answers about unRAID. It's being updated for v6, but much is still only for v4 and v5. * Docker FAQ - concerning all things Docker, their setup, operation, management, and troubleshooting * FAQ for binhex Docker containers - some of the questions and answers are of general interest, not just for binhex containers * VM FAQ - a FAQ for VM's and all virtualization issues Know of a question that ought to be here? Please suggest it in the FAQ feedback topic. ------------------------------------------------------- Suggested format for FAQ entries - clearly shape the issue as a question or as a statement of the problem to solve, then fully answer it below, including any appropriate links to related info or videos. Optionally, set the subject heading to be appropriate, perhaps the question itself. While a moderator could cut and paste a FAQ entry here, only another moderator could edit it. It's best therefore if only knowledgeable and experienced users create the FAQ posts, so they can be the ones to edit it later, as needed. Later, the author may want to add new info to the post, or add links to new and helpful info. And the post may need to be modified if a new unRAID release changes the behavior being discussed. Moderators: please feel free to edit this post. 2 2 Quote Link to comment
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