Data Hoarder

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We are digital librarians. Among us are represented the various reasons to keep data -- legal requirements, competitive requirements, uncertainty of permanence of cloud services, distaste for transmitting your data externally (e.g. government or corporate espionage), cultural and familial archivists, internet collapse preppers, and people who do it themselves so they're sure it's done right. Everyone has their reasons for curating the data they have decided to keep (either forever or For A Damn Long Time (tm) ). Along the way we have sought out like-minded individuals to exchange strategies, war stories, and cautionary tales of failures.

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Storage on a home server (alien.top)

submitted 11 months ago by smoknjoe44@alien.top to c/datahoarder@selfhosted.forum

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I am just getting into setting up a home server. I recently purchased a used HP EliteDesk 800 G3 SFF computer with i5-7500 CPU. It came with a 256 NVMe SSD and a 1TB HDD. I checked with crystal disk info and both drives seem to be in good condition.

I am planning to set up Proxmox on it, spin up a debian virtual machine, and use docker compose for most of my applications. Before I get going, I want to make sure my hard drive storage is set up properly.

I plan to install Proxmox on the NVMe drive. I purchased a 4TB seagate barracuda HDD that I would like to have mirror the 1TB HDD that came with the computer for storage. My plan was to replace the 1TB drive once I approach 1TB in storage as it feels like a waste to just replace it now especially since I don't yet have that much data. Is this possible to do this with two different hard drive sizes? Can I simply replace the 1TB drive with another 4TB drive in the future if needed?

Thank you!

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[–] Sopel97@alien.top 1 points 11 months ago

As mentioned the 4TB Barracuda is an SMR drive. These are pretty useless for RAID as their write speeds are abysmal. In case a resilver is needed it'd take like 10 times longer than with CMR drives, completely defeating the point of RAID. See https://www.servethehome.com/wd-red-smr-vs-cmr-tested-avoid-red-smr/

At least ZFS allows increasing the size of the drives within a mirror pool. Not sure about other RAID setups but it's a pretty easy feature to support so I would expect virtually everything to have it.