No write access to destination

Hi, I have set up my DVR and created a share on the synology called ‘DVR’ then two sub folders, eg DVR - TV and DVR - Movies

Now recording a TV show works fine, but if I try to record a move I get a No write access to destination error.

The log is returning a diskspace error… but on a completly unrelated drive.

Apr 27, 2019 21:07:52.465 [0x7fa8a7735700] ERROR - Error issuing curl_easy_perform(handle): 28
Apr 27, 2019 21:07:52.465 [0x7fa8a7735700] ERROR - SSDP: Error parsing device schema for http://xxx:80/rootDesc.xml
Apr 27, 2019 21:07:52.489 [0x7fa8a7735700] ERROR - SSDP: Error parsing device schema for http://xxx/description3.xml
Apr 27, 2019 21:07:52.562 [0x7fa8a7735700] ERROR - SSDP: Error parsing device schema for http://xxx/description1.xml
Apr 27, 2019 21:07:52.568 [0x7fa8a7735700] ERROR - SSDP: Error parsing device schema for http://xxx/description1.xml
Apr 27, 2019 21:08:04.625 [0x7fa8f3d11700] ERROR - Failed to calculate available disk space for path '"/volume2/Blu Rays/.grab"': 1 (Operation not permitted)
Apr 27, 2019 21:08:04.628 [0x7fa8f3d11700] ERROR - DVR:Grabber: No write permission.
Apr 27, 2019 21:08:04.628 [0x7fa8f3d11700] DEBUG - DVR:Grabber: Operation for 'Bad Neighbours (2014)' on channel 28 completed with status error (No write access to destination)
Apr 27, 2019 21:08:04.633 [0x7fa8f3d11700] ERROR - DVR:Grabber: Starting media grab failed.

Any ideas?

Yes… Pretty straight forward resolution too:

  1. Control Panel -> Shared Folders
  2. Permissions Tab
  3. Give user Plex permission to write to that share on Volume2

Hmm okay. That will work (once I have resolved the crashed volume 2… very long and different story). But why is it trying to access that library when the share it should be writing to is on volume 1? The DVR Share only has folders (just one folder) from volume 1.

The crashed volume 2 has other TV libraries on it, but TV Show DVR recordings work fine. Sounds like a bug in the PMS??

No. Crashed volume trumps everything… The logs show “Permission Denied”.

This is DSM (Linux) telling you “No, you cannot write here” . Sorry

Recover / Scrub the volume and bring it back to proper status.

Yep, fixing the drive is in progress, but at 6TB it takes a day to do.

So every time a volume crashes the Movie DVR will fail, but the TV DVR will work.

Struggling to understand the logic here? I could understand if the TV DVR failed too. If the TV DVR works then the Movie DVR (which also has nothing to do with the crashed volume) should also work.

Why is the TV DVR working fine but the Movie DVR is trying to write to a volume that is has nothing to do with?

I must be missing some logic here, otherwise it must be a bug in the code for movie dvr.

Do they share the same volume?
If so, then we need check the permissions in there deeper.
DSM loves to forget permissions too. (always keep an eye out)

If on different volumes, then you have it.

I run my DS1815+ as one large volume. It does take 48 hours to scrub 8x 6TB but I never worry about losing stuff.

The PMS is on Volume 1 (an SSD drive)
The DVR Share is on Volume 1
The TV DVR library has one folder, a sub folder of the DVR Share on Volume 1
The Movie DVR library has one folder, a sub folder of the DVR Share on Volume 1

Volume 2 just holds various media folders attached to completely different plex libraries

As I say, as the TV DVR works fine, it makes no sense for the Movie DVR to be off looking at Volume 2. Of course, with Vol2 crashed, it is in R/O mode, but why is it trying to use Vol2 when the TV DVR isn’t.

The volume crashing problem is an on going one that we have discussed over PM before. Synology did replace the NAS under warranty and the drives have just crashed again. 4 WD Reds crashing… as I say another story.

Would love to understand though why my set up means that Movie DVR is reliant on all volumes having permisions but TV DVR isn’t.

I literally created the DVR Share as new with plex permissioned, then added the TV sub folder and movie sub folder. Then created the plex libraries. Something is amiss.

Do you have a preference or a library folder in your Movies share lists which is on Volume2?
It won’t go out there looking for it unless it has a reference (base directory to put the .grab in)

Other Movie libraries point to Vol2, but the DVR Movie Library only has the one folder which is on Vol 1. The rest of the settings for the Movie DVR Library were let at default. Where should I be looking?

I will need to ask engineering how PMS picks which share/directory to put the .grab in.
Looking at what you currently have defined, Is the first Movie library’s first directory a /volume2 reference ?

I have 5 Movie Libraries and 3 TV Show libraries.

The explicit folder that the error is showing is ‘Blu Rays’… this isn’t the first movie library, it is the 3rd (alphabetically). Whether PMS considers this specific library to be the first I don’t know, but ‘Blu Rays’ is the first folder added to that library.

Actually, just tried doing it on the King account and the DVR defaulted to that folder/library for the movie.

Trying that movie now to see if it works on the vol1 library, then will try again on the other managed account to see if that fudges it to work. If so, then looks like an edge case bug.

… and yep, that has fudged it to work.

I must have originally tried a TV recording on the King account which forced it to work.

So it looks like he grab file goes to the default of the King account regardless as to what the managed user has chosen for the actual recording.

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