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Question about what to put on RAID and what to put on NVME (lemmy.world)

submitted 1 year ago* (last edited 1 year ago) by ch00f@lemmy.world to c/selfhosted@lemmy.world

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Since 2016, I've had a fileserver mostly just for backups. System is on 1 drive, RAID6 for files, and semi-annual cold backup.

I was playing with Photoprism, and their docs say "we recommend placing the storage folder on a local SSD drive for best performance." In this case, the storage folder holds basically everything but the pictures themselves such as the database files.

Up until now, if I lost any database files, it was just a matter of rebuilding them by re-indexing my photos or whatever, but I'm looking for something more robust since I'll have some friends/family using Pixelfed, Matrix, etc.

So my question is: Is it a valid strategy to keep database files on the SSD with some kind of nightly backup to RAID, or should I just store the whole lot on the RAID from the get go? Or does it even matter if all of these databases can fit in RAM anyway?

edit: I'm just now learning of ZFS caching which might be my answer.

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[–] AtariDump@lemmy.world 1 points 1 year ago* (last edited 1 year ago) (1 children)

Take an encrypted HDD to work and leave it in your desk?

The basic concept of the 3-2-1 backup strategy is that three copies of the data are made to be protected, the copies are stored on two different types of storage media and one copy of the data is sent offsite

[–] ch00f@lemmy.world 2 points 1 year ago (1 children)

Doing that every day feels a bit impractical. I already do that every few months.

[–] AtariDump@lemmy.world 1 points 1 year ago

All a matter of your risk tolerance and how often the data changes.