EDIT: solution/workaround is the next post below.
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I am performing initial setup of FreeNAS 11 and have some issues with TimeMachine and sharing (write permissions for users).
I have 3 PC, two of which have to have time machines and all three should have access to the main data set. I have 2 x 4 Tb drives in mirror.
1. I created 3 datasets: NAS_DATA (2.5 TiB), NAS_TM_User1 (500 GiB) and NAS_TM_User2 (500 GiB).
2. I have 3 AFP shares (2 with TM enabled and the same limit of 500 GiB).
3. And I have 3 users and 3 groups (for each PC): tm_user1, tm_user2, nas_data. Each one is set as an owner of the corresponding data sets. The first two users are also in "nas_data" group (in order to get access to the main dataset via same username/password).
All data sets have read/write/execute permission ticked on for "owner" and "group".
(i) First problem is that I have write access to "NAS_DATA" only from "tm_user1" (not even the owner "nas_data", there is no write access from "tm_user2" either). The other two can connect and read, but not write. From GUI and permission, everything should work, as far as I understand. The only difference between the users is that "tm_user1" is on High Sierra, whereas the other two are on Sierra. But I don't see how it's related to write permissions.
(ii) Second problem is that initially I accidentally created time machine data sets with 512Mb size (instead of Gb). Then I fixed the volume size and now it shows correctly when I connect to the time machine from my mac, BUT eventually I still get an error that TimeMachine drive is too small (512 Mb) and back up can't be done. This looks like a bug somewhere in Shares (or datasets?) that still partly remembers the initial old dataset size.
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I am performing initial setup of FreeNAS 11 and have some issues with TimeMachine and sharing (write permissions for users).
I have 3 PC, two of which have to have time machines and all three should have access to the main data set. I have 2 x 4 Tb drives in mirror.
1. I created 3 datasets: NAS_DATA (2.5 TiB), NAS_TM_User1 (500 GiB) and NAS_TM_User2 (500 GiB).
2. I have 3 AFP shares (2 with TM enabled and the same limit of 500 GiB).
3. And I have 3 users and 3 groups (for each PC): tm_user1, tm_user2, nas_data. Each one is set as an owner of the corresponding data sets. The first two users are also in "nas_data" group (in order to get access to the main dataset via same username/password).
All data sets have read/write/execute permission ticked on for "owner" and "group".
(i) First problem is that I have write access to "NAS_DATA" only from "tm_user1" (not even the owner "nas_data", there is no write access from "tm_user2" either). The other two can connect and read, but not write. From GUI and permission, everything should work, as far as I understand. The only difference between the users is that "tm_user1" is on High Sierra, whereas the other two are on Sierra. But I don't see how it's related to write permissions.
(ii) Second problem is that initially I accidentally created time machine data sets with 512Mb size (instead of Gb). Then I fixed the volume size and now it shows correctly when I connect to the time machine from my mac, BUT eventually I still get an error that TimeMachine drive is too small (512 Mb) and back up can't be done. This looks like a bug somewhere in Shares (or datasets?) that still partly remembers the initial old dataset size.
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