Not sure, I pulled mine out of old mobiles
Whatās the rationale for deactivating swapping?
my guess on a pi would be to avoid burning de sd card
if a pi starts swapping, it is responding so slow, you canāt really work with it anymore anyways.
LinuxNet: r u running 32 or 64 bit raspbian?
I only have a SanDisk Ultra 16GB microSDHC and always have one as a replacement at home.
Donāt buy expensive SD cards. The piās like to punch them because the SD cards are actually not intended for so many write and read accesses.
At the moment the Pi4 is running in 32bit mode, Iām probably a Noob xD, but Iāve already used it with Raspian 64bit. But I had the problem with 64bit that some software still recognized the Pi as 32bit. But that was a few months ago, I cannot judge how it is today. so far I have no urgent need for 64bit and everything runs smoothly.
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Which filesystem did u format the CD card? ext4? fat32 ?
Formatted in FAT32 and the OS with Rufus or balenaEtcher flashed onto the SD card 
EDIT:
I forgot: I also save the Storj Log on the HDD. The log is not healthy for the SD and can quickly reach several GB
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Ah, good point! How did you configure this?
Thx for the info. This doesnāt seem to use dockerās way to log things thoughā¦ ?
There must be a way to do this from the docker command I guess. Iām not a big fan of tampering with config.yaml ^^ā
I use this in the command to start the storagenode on the PI that uses SD for the root :
"--log-driver none \" added to the standard command.
On the other PIs Iāve moved root onto the HDD so I leave the log on.
You canāt go wrong if you stop the Docker. The node is not offline for more than 10 seconds. With Nodepad++ you can continue to follow the log live.
Right. How did you set that up? Changed fstab so / targets the external hard drive?
I see ^^ No log at all. I guess as suggested in Registry | Docker Docs another way would be to save logs to a RAMDISK: A few tens of MB should be enough I guess for each Node. Worth investigating.
I donāt think it is worth repeating how to move pi root as it is documented on the pi and os forums ā¦
Not an optimization as such but for storj identity key generation on the pi4 :
32bit raspian 1 million keys = 4m12s (version 0.29.3)
64bit ubuntu 1 million keys = 0m48s (version 0.34.6)
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Is the performance improvement because of the 64bit OS? Impressive difference!
Itās due to the hardware cryptographic instructions on the Rpiās chips are only usable in 64 bit OSās
In 32 bit it falls back to āsoftwareā to run cryptographic instructions.
So the key generation gets a huge boost with the 64bit hardware in the chip doing most of the number crunching.
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I created a new identity yesterday with the Rpi4 and Raspian x32 ā¦ Over 12 hours oO
Can anyone say something about the stability of Raspian x64?
LinuxNet: Did u ever consider to have the OS installed on an SSD/USB 3.0 drive? The read/write speeds are much higher compared to SD, and maybe the life-expectancy would be much longer since SSD/USB-sticks tolerate more read/write compared to SD cards?
Since there is no boot-supprt for USB on RPI4 today, the solution would be to have the boot-partision on the SD-card (BerryBoot), and the operating system files on the external USB hard drive instead of on the SD card itself. Any comments? Might improve storj-success rate?
By the way: How is your storj-success rate in ubuntu 64 bit compared to raspbian 32 bit ?
No difference. My experience is limited by the (slow) broadband speed.