this post was submitted on 10 Nov 2024
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I am planning on creating a home server with either 2 (RAID1) or 3 (RAID5) HDDs as bulk storage and 1 SSD as bcache.

The question is, what file system should I use for the HDDs? I am thinking of ext4 or xfs, as I heard btrfs is not recommended for my use case for some reason.

Do you all have some advice to give on what file system to use, as well as some other tips?

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[–] alwayssitting@infosec.pub 13 points 2 weeks ago* (last edited 2 weeks ago) (3 children)

Personally I would go for ZFS with the SSD as a L2ARC. But among the options you listed I would do BTRFS RAID1 if you're only gonna use two HDDs, and mdadm RAID5 with BTRFS on top if using three.

[–] possiblylinux127@lemmy.zip -1 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

L2ARC will kill a SSD faster than normal wear would.

[–] alwayssitting@infosec.pub 6 points 2 weeks ago

It will yeah, although with modern SSDs it really isn't a big problem. I've used an Samsung 840 EVO as L2ARC for 8 years now.

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