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In my case, it took me about 1h extra to find a reasonable tutorial, follow the steps and understand how to map volumes correctly. I have learned a couple of new things in the process, but at the same time, chances are I’m likely to revisit the same tutorial next time as I don’t expect to use this knowledge any time soon. What one will take from this learning experience is entirely down to them. If you want your system to have a clean look, it may behoove you to get an enclosure that not just fits your Pi, but your drives as well. This will also help to organize the mess of wires and cables this project will create. However, since the Pi may not be able to supply enough power to all your drives, you may need one that plugs into the wall separately or a powered USB hub. If you want a cleaner setup, you can use an internal drive designed for network attached storage, but that would require a big enough case. A NAS-friendly case (optional) The assembly process was done step-by-step mainly by referring to NASPi installation video on Youtube, and the steps are generalized as follows.
As can be seen, the speed of remote write is around 20MB/s, while the speed of remote file read can reach over 60MB/s. Considering that scp-related encryption and decryption are implemented in software on general-purpose Raspberry Pi systems, this result should be considered passable. Disk Access Speed Test Love your articles and videos! Something to think about next time...try using the BTRFS filesystem instead of mdadm. I abandoned md based raid over 10 years ago already and have been using BTRFS with great success on all my production servers in various raid configurations. BTRFS makes managing discs and filesystems and raid a pleasure. It is so incredibly easy to add new drives and dynamically expand your raid array while it's running. You can even change raid levels while the array is online. BTRFS also supports on the fly compression, which makes your storage go a little bit further than normal. Don't listen to the naysayers who say BTRFS is not production ready and not stable, that's a myth. I've never had data loss in over 10 years due to BTRFS, in fact it's saved my bacon more often than I can count. Major linux distros like RedHat and Suse are making it their default file system for a reason. I'd be really curious to see benchmarks on the hardware you're using with BTRFS compared to the conventional md raid array you used. Keep up the great work! In the kit are four high quality rubber feet that provide stability to the case and minimize noise from the HDD vibrations. Please make sure you affix those as per the documentation. Jan 6 13:41:29 CL01-Master kernel: [ 66.024084] Adding 102396k swap on /var/swap. Priority:-2 extents:1 across:102396k SSFSFind the external drive you want to use for your files—in my case, it's an 80GB drive called "MyExternalDrive"—and note its path. In the screenshot above, the 80GB drive plugged into my Pi corresponds to /dev/sda. (Make absolutely sure you note the correct drive, as we're about to erase it!) To make sure mdadm automatically configures the RAID array on boot, persist the configuration into the /etc/mdadm/mdadm.conf file: # Configure mdadm to start the RAID at boot:
Its logic is quite simple. With the pigpio module imported, it first initializes a PWM control object and then starts a while loop with a 1-second sleep cycle inside. The CPU temperature is read at each cycle, and the duty cycle of PWM is set according to the temperature level to control the fan speed. The duty cycle is 0 when it is lower than 30℃, and the fan stops; when it is higher than 75℃, the duty cycle is 100, and the fan spins at full speed. Users can modify the temperature threshold and duty cycle parameters in the program to customize the PWM fan control. To be fair, I wouldn’t be able to tell which NAS box I was using for my workflow as both performed to my satisfaction – and I was using my drives without any RAID configuration. Adding data stripping would definitely improve file access time. Conclusions This isn't strictly necessary, but it can be useful if you have multiple people in your household to whom you want to give different read and write permissions on certain shares. Once all users are added, run the following command to restart Samba:And, as you'd expect, RAID 0 basically pools all the drives' performance metrics together, to make for an array that finally competes with the tiny microSD card for 4K performance, while also besting the Kingston SSD for synchronous file copies.
Quite simply this is a NAS and, as such, the majority of people will gravitate towards buying the Argon EON for this role. But with space for up to four SSDs, USB booting, excellent cooling and support for the Raspberry Pi 4 we have an excellent, if expensive case. Connect X-C1 and Raspberry Pi 4B, insert a 7-pin connector right to the X-C1 GPIO port and a 3-pin connector to the X-C1 FAN portA magnetic hatch on the top of the case provides access to the GPIO, a colour coded GPIO with all the pin references printed on the case! HATs can be used with the case but you may need to use a header extension to ensure that the board clears the aluminium top of the Argon One M.2. Just next to this GPIO hatch is a small slot useful to route the Pi Camera and official display cables through. To offer you at least something, we have decided to open-source all the design files that we created so far. You will find them soon on GitHub under the following link:
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