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

submitted 11 months ago by zyzhu2000@alien.top to c/homelab@selfhosted.forum

11 comments fedilink hide all child comments

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.

you are viewing a single comment's thread
view the rest of the comments

[-] raven2611@alien.top 1 points 11 months ago

You can compensate the higher latency with keeping most or all of the database in memory (at least with postgres or mysql) aka caching. This will help you with database reads but not with writes. Writes need to hit a persistant storage layer first. When it comes to reliability I usually rely on the replication features shipped by the DBMS.

Here is an in depth blog about local and distributed storage with MySQL. https://blog.koehntopp.info/2022/09/27/mysql-local-and-distributed-storage.html

Can´t really say much about other types of databases though.

this post was submitted on 26 Nov 2023

1 points (100.0% liked)

Homelab

371 readers

2 users here now

Rules

Be Civil.
Post about your homelab, discussion of your homelab, questions you may have, or general discussion about transition your skill from the homelab to the workplace.
No memes or potato images.
We love detailed homelab builds, especially network diagrams!
Report any posts that you feel should be brought to our attention.
Please no shitposting or blogspam.
No Referral Linking.
Keep piracy discussion off of this community

founded 1 year ago

MODERATORS

communick@selfhosted.forum

rglullis@communick.news