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(Why) would it be "bad practice" to separate CPU and storage to separate devices? (lemmy.world)

submitted 2 years ago* (last edited 2 years ago) by PlutoniumAcid@lemmy.world to c/selfhosted@lemmy.world

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TLDR: I am running some Docker containers on a homelab server, and the containers' volumes are mapped to NFS shares on my NAS. Is that bad performance?

I have a Linux PC that acts as my homelab server, and a Synology NAS.
The server is fast but has 100GB SSD.
The NAS is slow(er) but has oodles of storage.
Both devices are wired to their own little gigabit switch, using priority ports.

Of course it's slower to run off HDD drives compared to SSD, but I do not have a large SSD. The question is: (why) would it be "bad practice" to separate CPU and storage this way? Isn't that pretty much what a data center also does?

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[–] marcos@lemmy.world 7 points 2 years ago

Data centers get around this by:

Using network mapped disks instead of network mapped filesystems.

They use SAN and not NAS. The database and VM architecture do not fundamentally change the behavior of the disks, and there isn't much more complicated stuff beyond that.