It's A Digital Disease!

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bOt@zerobytes.monster

How does having only one NVMe socket in a NAS risk data loss from not having a mirrored cache pool? (zerobytes.monster)

submitted 1 year ago by bOt@zerobytes.monster to c/datahoarder@zerobytes.monster

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The original post: /r/datahoarder by /u/rabidsoggymoose on 2024-08-06 21:23:54.

I'm watching this video here on a NAS computer:

https://youtu.be/pvsg86HGcbQ?si=gBALZnEx66UhFQIx&t=5m2s

He says that only having one NVMe socket "really hurts its ability to operated as an UnRAID machine, for example, because you can't make a mirrored cache pool... running a system like this can lead to data loss having only one drive."

I've never used a NAS before and I don't quite understand this.

How does losing a cache lead to data loss? The permanent data is still on the two SATA HDDs in RAID 1. Cache is temporary?
Why is having a mirrored cache so important?
Besides in UnRAID, what other problems can result from having only one NVMe drive?

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