July 24, 200916 yr Hi, This is my first post. I have been eagerly reading all of the info on the forums and wiki about unraid. I love the whole concept of this and also am almost ready to buy a LimeTech prebuilt system save for a couple of issues, the main one is I've noticed there seems to be current support issues with NFS. I am a Unix admin by day, so I don't have any Windows boxes in my house, so NFS is what I want to use for all of my filesharing from my unraid box to everything in my house, especially for streaming HD movies to my linux based XBMC install in my living room. Note, I don't have an unraid box to play around with since I havent purchased a NAS array and software (yet), so I am just going by what I've seen in screenshots and wiki / forum info here. It seems there are 'issues' with FUSE and NFS? Some of it being related to exporting the unified 'User Share' view, if I am reading right. Has anyone here used or heard of the package 'mhddfs'? Here is the freshmeat entry for it: http://freshmeat.net/projects/mhddfs And a good blog post about what it does: http://debaday.debian.net/2008/05/25/mhddfs-join-several-real-filesystems-together-to-form-a-single-larger-one/ This software basically does the same thing as what I believe the User Shares option does, it aggregates your /dev/disk data directories into one unified view. Note, this program is a FUSE module which is doing all of this. IE: root@xbmc:/media# ls -l /media/external/ total 24 drwxr-xr-x 6 hovland hovland 4096 2009-07-11 13:54 appz drwxr-xr-x 10 hovland hovland 4096 2009-07-14 00:00 gamez drwxr-xr-x 56 hovland hovland 4096 2009-07-23 11:25 moviez drwxr-xr-x 11 hovland hovland 125 2009-07-14 00:12 mp3 drwxr-xr-x 8 hovland hovland 8192 2009-07-17 23:05 music.videoz drwxr-xr-x 6 hovland hovland 70 2009-07-21 00:27 tv drwxrwxr-x 7 hovland xbmc 121 2009-07-23 20:27 xbmc-stuff root@xbmc:/media# ls -l /media/internal/ total 4 drwxrwsr-x 7 hovland xbmc 4096 2009-07-23 20:09 Dropbox drwxr-xr-x 4 hovland hovland 47 2009-07-23 11:56 hellanzb root@xbmc:/media# root@xbmc:/media# mhddfs /media/internal,/media/external /media/unified mhddfs: directory '/media/internal' added to list mhddfs: directory '/media/external' added to list mhddfs: mount to: /media/unified mhddfs: move size limit 4294967296 bytes root@xbmc:/media# ls -l /media/unified/ total 28 drwxr-xr-x 6 hovland hovland 4096 2009-07-11 13:54 appz drwxrwsr-x 7 hovland xbmc 4096 2009-07-23 20:09 Dropbox drwxr-xr-x 10 hovland hovland 4096 2009-07-14 00:00 gamez drwxr-xr-x 4 hovland hovland 47 2009-07-23 11:56 hellanzb drwxr-xr-x 56 hovland hovland 4096 2009-07-23 11:25 moviez drwxr-xr-x 11 hovland hovland 125 2009-07-14 00:12 mp3 drwxr-xr-x 8 hovland hovland 8192 2009-07-17 23:05 music.videoz drwxr-xr-x 6 hovland hovland 70 2009-07-21 00:27 tv drwxrwxr-x 7 hovland xbmc 121 2009-07-23 20:27 xbmc-stuff root@xbmc:/media# I am able to nfs export the unified share without any issues via nfs: /media/unified *(rw,sync,no_subtree_check,fsid=0,insecure) The only obvious issue I would see right away with this software is that it tries to act intelligently, and will pick which underlying device it will put the data on based on the amount of free space, which would interfere with the unraid highwater, etc disk setup. Thoughts?
July 24, 200916 yr I see the need for this functionality on the horizon. I'm using an NFS share to feed HD video to my Popcorn Hour A-110. With only 600 GB on a 1.5 TB drive, I'm good for now. But eventually I'll need to connect a User Share to the Popcorn Hour over NFS. This application may be the solution. Curious. If you write a file directly to a disk that is a part of the unified share, does the file show up on a directory listing of the unified share? That may be a way to work around the mhddfs algorithm. Kevin
July 25, 200916 yr Author Yup, you can write directly to each drive if you wish, the software basically just overlays all of the drives into one big view. the df output also is a sum of all of the free and used space. I just tested this and it looks like if you have the same file in the same location on two or more drives it will only show you the file in the lowest mounted drive in the unified view. It is good to know that you can setup NFS exports and mount them without issue, as I think you should with a unix based distro, but I really would like to use the unified view functionality to export my data. It would be much less of a headache to nfs mount unraid:/movies than a bunch of exports and mount all of those remotely.
July 25, 200916 yr Most of that blog said that it did not work with NFS. They must have made some advances. Joe L.
July 25, 200916 yr Author Yeah I think those comments on the blog are just old, I am able to do this fine right now, with the default version of this software available via the Unbunu Jaunty repo: hovland@/a/test$ df -H . Filesystem Size Used Avail Capacity Mounted on xbmc:/media/unified 1.7T 732G 951G 44% /a hovland@/a/test$
July 25, 200916 yr I thought the latest beta of unRAID supported NFS and user shares? Am I mistaken? unRAID has had NFS shares since at least 4.4.1, so it is not just the latest beta. They are not the easiest to figure out the syntax, but there are examples of how in the wiki. http://lime-technology.com/wiki/index.php/FAQ#How_do_I_configure_NFS_mounts.3F discussion here: http://lime-technology.com/wiki/index.php/UnRAID_Topical_Index#NFS Joe L.
July 26, 200916 yr Author Oh sweet, I missed this. It says it is still experimental, if people have had no issues with this then the only thing left on my agenda is which box to buy off of this website then
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