The original post: /r/datahoarder by /u/olo99 on 2024-12-26 00:09:07.
I got some questions that I hope to get some clarification on:
I have 8 x WD RED SSD (4TB) that I want to set up with Drivepool + SnapRAID.
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Is 2 disk parity for SnapRAID still recommended even when using SSDs and not regular HDDs, or is 1 disk good enough?
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Is there any point in getting a PLP SSD to use as cache drive in addition to the other ones? (at the moment I don't have a UPS, would PLP give a little protection for sudden shut downs?)
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I have seen some using 2 SSDs as cache drives (1 with duplication). And then "dumping" the data over to the storage drives and then have SnapRAID just run off the storage drives. In my case all drives will be SSDs, would this still benefit in any way? Or would it be better just having all drives (without parity) in just one big storage pool? I know SnapRAID doesn't like to be run when anything is active.
For example would this be ideal:
disk 1 cache drive
disk 2 duplicate of 1
disk 3-7 storage
disk 8 parity (SnapRAID).
This would then give 24TB total storage. (down to 20 if double parity).
Or what would you recommend? :)