Unionfilesystem Plugin

Hi, i hope my question is right here.

I have a OMV2 machine running here and it runs wonderful and now i want to test the latest omv3 in VirtualBox on my Windows 10. In OMV2 the unionfilesystem-plugin lets you select "mergerfs" in the "type" box. In OMV3 is no "type" box where i can select mergerfs.

How do i use mergerfs in OMV3 unionfilesystem plugin?

Thanks for your quick reply, ryecoaaron!
And thanks for your work at all on OMV, keep up the good work!

Is this plugin currently working in 3.0?

I've setup a test system for OMV 3.0 and tried the unionfilesystem plugin. It installs ok, but when I go to create a pool, I get the following error;

Failed to execute XPath query '/config/services/unionfilesystems'.

Details;

Error #0:exception 'OMV\Config\DatabaseException' with message 'Failed to execute XPath query '/config/services/unionfilesystems'.' in /usr/share/php/openmediavault/config/database.inc:244Stack trace:#0 /usr/share/openmediavault/engined/rpc/unionfilesystems.inc(221): OMV\Config\Database->set(Object(OMV\Config\ConfigObject))#1 [internal function]: OMV\Engined\Rpc\UnionFilesystems->set(Array, Array)#2 /usr/share/php/openmediavault/rpc/serviceabstract.inc(124): call_user_func_array(Array, Array)#3 /usr/share/php/openmediavault/rpc/rpc.inc(84): OMV\Rpc\ServiceAbstract->callMethod('set', Array, Array)#4 /usr/sbin/omv-engined(516): OMV\Rpc\Rpc::call('UnionFilesystem...', 'set', Array, Array, 1)#5 {main}

I'm moving my G6 running Windows 2012 to my new server running OMV only. This means I'm moving Sonarr, Couchpotato and jackett along with others. My problem is that when i try to setup Sonarr (haven't tried anything else) it tells me to locate the path. the problem is i have NO clue where to look when i look in the File System section i find media/a bunch of letters and number. When i go to /media/ I can't find it. please help

Zitat von ryecoaaron

You can enable the absolute path column in the Shared Folders tab. This will show you exactly where it is. See my video.

That is not an option of mine i'm running 2.2.13

I have the same problem and as a workaround I placed a txt-file named after the partition into every partition's top directory. So you also know when you're on the pool partition because there you'll see multiple of the txt-files.

Zitat von villeneuve

I have the same problem and as a workaround I placed a txt-file named after the partition into every partition's top directory. So you also know when you're on the pool partition because there you'll see multiple of the txt-files.

I understand what you are saying i just don't know how to do that yet.

Use the command

blkid

to list all your filesystems and their accompanying harddrives.

I'm access the OMV remotely so let me load shellinabox quick

here is the blkid

If i added a zfs pool to my union system this error comes:

Could not fetch a matching mount point from the provided fsname: 'media/85b917c0-a89f-4bdc-90a4-fa82b16690c7:media/5763287c-c94f-409f-bb39-b0f84c36b6a2:media/24e79b44-2a20-4c27-a72f-7bf8af000114:media/0ae57b04-dd68-470b-b433-bcdb56e4885b:pool1'.

Fehler #0:exception 'OMV\Exception' with message 'Could not fetch a matching mount point from the provided fsname: 'media/85b917c0-a89f-4bdc-90a4-fa82b16690c7:media/5763287c-c94f-409f-bb39-b0f84c36b6a2:media/24e79b44-2a20-4c27-a72f-7bf8af000114:media/0ae57b04-dd68-470b-b433-bcdb56e4885b:pool1'.' in /usr/share/php/openmediavault/system/filesystem/backend/mergerfs.inc:111Stack trace:#0 /usr/share/php/openmediavault/system/filesystem/backend/mergerfs.inc(55): OMV\System\Filesystem\Backend\Mergerfs::fetchMountPointFromFstabByFsnameAndType('media/85b917c0-...', 'fuse.mergerfs')#1 /usr/share/php/openmediavault/system/filesystem/filesystem.inc(885): OMV\System\Filesystem\Backend\Mergerfs->getImpl('media/85b917c0-...')#2 /usr/share/openmediavault/engined/rpc/sharemgmt.inc(156): OMV\System\Filesystem\Filesystem::getImplByMountPoint('/media/d0bd8987...')#3 [internal function]: OMVRpcServiceShareMgmt->enumerateSharedFolders(Array, Array)#4 /usr/share/php/openmediavault/rpc/serviceabstract.inc(124): call_user_func_array(Array, Array)#5 /usr/share/php/openmediavault/rpc/rpc.inc(86): OMV\Rpc\ServiceAbstract->callMethod('enumerateShared...', Array, Array)#6 /usr/sbin/omv-engined(522): OMV\Rpc\Rpc::call('ShareMgmt', 'enumerateShared...', Array, Array, 1)#7 {main}

pool1 = zfs pool

What can i do?

More information:

# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sdi1 during installation
UUID=af75855b-300e-4cf2-aacb-cb32192bc2b2 / ext4 errors=remount-ro 0 1
# swap was on /dev/sdi5 during installation
UUID=89575d92-2a5c-463d-b48d-b56b15cbc802 none swap sw 0 0
tmpfs /tmp tmpfs defaults 0 0
# >>> [openmediavault]
UUID=85b917c0-a89f-4bdc-90a4-fa82b16690c7 /media/85b917c0-a89f-4bdc-90a4-fa82b16690c7 ext4 defaults,nofail,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0,acl 0 2
UUID=5763287c-c94f-409f-bb39-b0f84c36b6a2 /media/5763287c-c94f-409f-bb39-b0f84c36b6a2 ext4 defaults,nofail,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0,acl 0 2
UUID=24e79b44-2a20-4c27-a72f-7bf8af000114 /media/24e79b44-2a20-4c27-a72f-7bf8af000114 ext4 defaults,nofail,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0,acl 0 2
UUID=0ae57b04-dd68-470b-b433-bcdb56e4885b /media/0ae57b04-dd68-470b-b433-bcdb56e4885b ext4 defaults,nofail,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0,acl 0 2
UUID=8ae2e057-c307-413f-9df9-3e32139bf7cc /media/8ae2e057-c307-413f-9df9-3e32139bf7cc ext4 defaults,nofail,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0,discard,acl 0 2
/media/85b917c0-a89f-4bdc-90a4-fa82b16690c7:/media/5763287c-c94f-409f-bb39-b0f84c36b6a2:/media/24e79b44-2a20-4c27-a72f-7bf8af000114:/media/0ae57b04-dd68-470b-b433-bcdb56e4885b:/pool1 /media/d0bd8987-7394-4772-92c2-31ab08740691 fuse.mergerfs defaults,allow_other,direct_io,use_ino,category.create=epmfs,minfreespace=4G 0 0

Zitat von Wetter

If i added a zfs pool to my union system this error comes:

ZFS and unionfs are not designet to work together, use ZFS or use UnionFS ( or both using separate Disk, eg: one for video other for data), but what you are trying to do, have no sense.

Thank you. Thats very sadly. On omv 2.0 worked it very good but okay i must see how i come out of this situation.

Thank you I love this plugin and have been running a version of it for a few years now.

I read through everything and didn't see this asked:
Question: How can i get new drives/space to show up in the mergerfs pool without a reboot? Normally i just reboot but i'd rather not as my server is always busy. I tried a sudo mount -a and that didn't work with a notice of Fuse: mountpoint not empty

I can't speak to the plug-in but check the mergerfs docs for runtime manipulation.

I emailed the mergerfs developer:

Use the runtime config interface:

https://github.com/trapexit/mergerfs#runtime
https://github.com/trapexit/mergerfs-tools

There's an example using mergerfs.ctl in the docs

$ mergerfs.ctl add path /mnt/foo

so after cloning the mergerfs-tools and running sudo make
for merger fs pool examp of: /media/mainpool
and new drives of: /srv/dev-disk-by-label-WDRed8TB1 and WDRed8TB2
The commands to add them without reboot would be:
sudo mergerfs.ctl -m /media/mainpool add path /srv/dev-disk-by-label-WDRed8TB1
and
sudo mergerfs.ctl -m /media/mainpool add path /srv/dev-disk-by-label-WDRed8TB2

Zitat von Gene

I emailed the mergerfs developer:

<----- That's me