Raspberry 4 pi tunned

Raspberry 4 pi tunned

Raspberry 4 pi tunned
Studying to create a NAS with raspberry pi4, it's not a reliable NAS but kind of backup of backup.

Since raspberry 4 has only USB3.0 this is our limit, but depends on the brand/chip of adapter the results are different.

The test to read used hdparm command and to write a dd command.
Read
hdparm -tT /dev/sda<br>
Write
dd if=/dev/zero of=./TestingFile bs=100M count=10 oflag=direct status=progress<br>
Nvme + usb3.0 Orico / Realtek adapter

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SSd + usb3.0 sata adapter Jmicron

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sucks 33 mb read and write on Jmicron chip

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SSd + usb3.0 sata adapter ASmedia

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Not bad with usb3.0 and asmedia chip to sata.



Final Results


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From my opinion the better option is SSD SATA with asmedia chip, is good cost and benefit, nvme is good also but more expansive price.

In my case I have 4tb nvme for this test, but I'm waiting the special case for raspberry pi that has the NVME adapter for raspberry pi from 52pi that I hope that have a good chip like asmedia or realtek.



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