RT87 Posted May 14, 2021 Share Posted May 14, 2021 Hi, I would love for an additional "cache copier/syncer" as an addition to the existing mover. What exactly do I mean by that: Say I only want to use one large SSD cache drive (instead of 2 or more to get an array-like redundancy, since large SSDs are still somewhat pricey and, of course, take up space and ports). I would like to have all my docker/vm/often used data ond the cache drive, but I would also care to have that cache-data backed up on the standard array/data drives on a regular basis. Hence, I would like for a nightly backup to the array to occur, but not with moving, but copying/syncing instead. Ideally, the share which is used for this would be read-only to all users (a "cache-sync-share", if you will), so only the syncer can write to it (root definitely shouldn't, but could). However, the users/root CAN use it to restore the data from this share (in case of SSD failure), or, of course, delete it entirely, This would be very helpful, because I could save on SSDs without sacrificing redundancy. I personally do not care about the performance of the syncer, because this job would occur during low-to-none-load times. I also know that I can probably build this very feature on my own, using the "cache: only" setting + rsync/rclone or something similar (most basic: cp -uvr + crontab + remove data-singles without cache-equivalent), but I really feel like this is something many people would benefit from. Maybe this request will get a few "+1"s, which would be nice, but otherwise I would also be happy to just script-kiddie implement this on my own ;). Quote Link to comment
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