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Database servers using NAS as storage? (alien.top)

submitted 1 year ago by zyzhu2000@alien.top to c/homelab@selfhosted.forum

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I am thinking of running multiple database/messages servers such as postgres, redis, mongo, influxdb on old computers and use a centralized NAS to store the data.

One advantage is that I don't need to worry about getting appropriate local storage for the computers that host these services. For example, I could run postgres on an old desktop with spinning disks or even a raspberry pi.

But I am still concerned about the I/O speed and reliability. I wonder if anyone has experience doing it like this. Can you share the pros and cons? I really appreciate it.

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[–] ZarehD@alien.top 1 points 1 year ago

It's not a recommended topology (I/O perf & reliability), but if you do this, you'll want to use a "block storage" protocol (e.g. iSCSI, etc.), and a very fast network (i.e. 10Gbps min, ideally 25 or 40).