this post was submitted on 14 May 2024
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Make sure you buy two of them so you've got a backup. I'm uncomfortable storing 16TB worth of data on one drive, no way am I putting 32TB of anything I give a shit about onto one drive.
If you have 20TB of data to store, a single drive is safer than splitting it across multiple drives. Few point of failure in total.
If it's split up sure, but I'm talking about a raid > 0 setup and/or having backup copies of your data onto drive #2
Raid0? You mean having two devices stripped across is rather than just one device with no stripping? Raid0 is a risk you take when you care more about performance than downtime to restore a backup.
If I have 20TB of data, it cannot fit on a single 16TB drive. So my options are Raid, or this single drive option. I would always pick the single drive if I could afford it.
Double check that symbol there.
Raid 5 is a great balance of capacity and useful storage with 3 drives. You get 1 drive worth of fault tolerance and 2 drives worth of capacity. I personally have mismatched drives so I run raid 1 in between the matching sizes, and jbod between the raid 1 mirrors (well the zfs equivilent) And my really important data is backed up onto two more drives in raid 10.
The person I replied to said
as a criticism of using a single 32TB drive.
I argue that a single 32TB drive is less risk than using 2 16TB drives. Am I wrong?
Christ alive.
No. Actually. The 32TB drive is a single point of failure for all your data.
Splitting it means you have 2 points of failure but for only half your data.
From an integrity and availability standpoint the two disk solution, while wildly ridiculous and dumb as fuck, is actually better.
Both solutions are ridiculous and dumb and are not sufficient backup.