I apologize in advance if I'm asking for help on a common problem, I couldn't find the right answer in my searches. I am struggling with getting my cache pool to move correctly. My cache pool keeps filling up and won't empty even when mover is running. I have mover set to run every hour if the cache pool gets above 50%, but It will just continue to fill and not empty until a random point in time or if the server is restarted. I understand that "Prefer" will keep all the files from that share on the cache until it fills and "Yes" will write to the cache first and then dump to the array once it is full or mover invoked. I've checked my share sizes and everything with "Prefer" only adds up to a couple hundred GBs. After checking the size of all my shares going into the cache, it appears that my media files being downloaded go in and don't move out. My cache pool is four nvme drives at 2 TBs each, so it is pretty large and quick. What am I missing? I've attached my logs. While looking through them I did notice this error "emhttpd: error: get_key_info, 567: Invalid argument (22): stat: /boot/config/Trial.key" I'm not sure why I'm seeing that, but I'm assuming it is unrelated.

I don't even bother with mover tuning. I have enough cache (only 500G, less than you have) to hold all I write to it in one day, and the cached user shares get moved to the array in the middle of the night. I have a separate pool "fast" (nvme), 256G, where I keep my default shares. Depends on how much you write to cache. When I had simpler needs and simpler hardware, I didn't bother with caching much because most writes were queued downloads or scheduled backups, and nobody was waiting on them to complete anyway. Now, I have downloads that need post-processing, and I have enough hardware that I can download to a cached share, post-process to my "fast" pool, where it gets moved ('arr) to the final destination cached share. Anything you keep permanently on a single disk pool needs backup. CA Backup plugin, for example. In fact, I would say appdata and vdisks need backup even if on a redundant pool.

Mover not Moving

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March 19, 20233 yr

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Hopefully I don't need to make a new tread, but I'm still having trouble with mover. Since I made this post, I have built a separate cache pool for my default shares and those are set to prefer. All my media and basically everything else is goes into a separate media cache pool and is set to Yes:cache-media. That media pool keeps getting completely full and I have to shut everything down and wait a few hours for it to start emptying.

Can someone tell me what is going on here or where I can search the logs to find out why stuff isn't moving?

chunkymonkey-diagnostics-20230319-1922.zip

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March 20, 20233 yr

Community Expert

Looks like you have some strange and probably ridiculous settings for Minimum Free for your cache-media:yes shares.

dynamix.share.floor.plg - 2023.02.05  (Up to date)

Maybe get rid of that plugin and make the setting yourself. Set Minimum Free for each share to larger than the largest file you will write to the share.

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March 20, 20233 yr

Author

It looks like that is causing the share floor to be set at about 164gb. I removed that, but how would that help mover move the files?

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