Sanity Check: All nvme Build


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I saw the caveat that using ssds for storage is experimental and may not work as expected. Can someone explain what might go wrong?

 

My plan is to essentially build an itx machine with rocket 4 plus 8tb nvme drives (potentially up to 6 eventually) for storage. But, this could be a massive money pit if my plan has a fatal flaw. Is this going to work?

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It probably depends on what you want to do with your system.

A critical element being whether you want to host dockers or VMs.

In my system I have 4 x HD and 1 x NVME SSD.   Initially all the docker

containers and VMs were on SSD.

 

However one of the VM's (an Ubuntu server instance) was totally clobbering the

SSD with about 2 GB/s write rate.  After one week it had consumed about 10% of the

SSD rated lifetime.  There was a lengthy thread about Docker containers having write

amplification problems, and eventually a fix seemed to come about.   But my server

VM did not appear to benefit.   So I moved all the always-on VMs over to Hard Drive.

The write rate there is  *****WAY***** lower than to SSD for some reason.

 

-- Tom

 

 

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  • 4 weeks later...

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