Hello, I have an F8 SSD Plus working fine, and recently purchased a D2-320 attached to it via USB. I'm just intending to use it to make an occasional copy of the NAS data. So far the D2-320 just has one disk, and I formatted it in TOS as EXT4, then setup a USB Copy task to copy my entire NAS volume to it. This was all done with my super admin account (not intentionally, but I didn't think it would be a problem). My other admin account can see the USB drive, and the top level of the copied contents in TOS File Manager, but cannot open the folders. File Manager shows the permissions as "Deny".
Is there a way to change the file permissions in TOS to allow any admin to access them? I've changed them for the apps and the usb device itself, but those did not change access to the files themselves. There is no "permissions" option when I right click and open the properties for the files or folders, like there is for my NAS shares -- even as the super admin.
2nd question...Originally I was planning to use 2 x 16TB drives in RAID 1 in the D2-320 to make a copy with redundancy of the NAS contents, but would it be wiser to keep the 2 drives in single mode, and have one copy every week to disk 1, and another maybe every month to disk 2? I already have a cloud backup of all my data. Thanks for your help
[Help] USB Copy file permissions, and best practice for use
Re: [Help] USB Copy file permissions, and best practice for use
Hello,
We have fed back the first question to the laboratory and await further verification results.
The second problem is that if the component RAID1, the two disks mirror each other, the hard disk capacity will be only the size of one hard disk; if the single disk mode is maintained, the usable capacity will be larger. In addition, in single-disk mode, you can solve the problem of cumbersome manual copying every month through USB Copy settings scheduled tasks.
We have fed back the first question to the laboratory and await further verification results.
The second problem is that if the component RAID1, the two disks mirror each other, the hard disk capacity will be only the size of one hard disk; if the single disk mode is maintained, the usable capacity will be larger. In addition, in single-disk mode, you can solve the problem of cumbersome manual copying every month through USB Copy settings scheduled tasks.
To contact our team, please send email to following addresses, remember to replace (at) with @:
Technical team: support(at)terra-master.com(for technical support)
Service team: service(at)terra-master.com(for purchasing, return, replacement, RMA service)
Technical team: support(at)terra-master.com(for technical support)
Service team: service(at)terra-master.com(for purchasing, return, replacement, RMA service)
Re: [Help] USB Copy file permissions, and best practice for use
Thank you for passing the first question along 
Re: [Help] USB Copy file permissions, and best practice for use
I did wipe the drives in the D2-320 (and added a second one) again, and formatted to EXT4 in TOS and recreated the scheduled USB Copy tasks with a normal admin account, and the resulting files/directories were still inaccessible in TOS File Manager & have 'Deny' permissions for the admin.
Permissions issue aside, USB Copy seems unreliable overall. It'll fail on a random jpg file, or fail trying to copy a file that was deleted (instead of deleting it, since I'm using mirror mode) Shouldn't any errored files just be skipped and logged? Finally got it to finish, but when I immediately restarted the task it'll find new files and sync those, even though they haven't changed. For instance, one backup task thinks my mobile phone album backup folder contents are always new (created by TNAS Mobile in my home directory), even though nothing new was added to it. Another task doesn't have this problem; are they interfering with each other? Does one task copying those files make the other task think they were modified?
Permissions issue aside, USB Copy seems unreliable overall. It'll fail on a random jpg file, or fail trying to copy a file that was deleted (instead of deleting it, since I'm using mirror mode) Shouldn't any errored files just be skipped and logged? Finally got it to finish, but when I immediately restarted the task it'll find new files and sync those, even though they haven't changed. For instance, one backup task thinks my mobile phone album backup folder contents are always new (created by TNAS Mobile in my home directory), even though nothing new was added to it. Another task doesn't have this problem; are they interfering with each other? Does one task copying those files make the other task think they were modified?