Attenbach

THIS ALSO WORKED FOR ME, Asrock H570 itx/ac with G5905, updated drive to (6.9.2)

THIS ALSO WORKED FOR ME, Asrock H570 itx/ac with G5905, updated drive to (6.9.2)

Hello there, TLDR: Don't use a NUC as a NAS as shown in my profile picture, I used to run my NAS from an Intel NUC*. It was tiny!!! Though I have had collected nearly 200 UDMA CRC errors and found the culprit - so I wanted to share it with you. To connect SATA Drives to a NUC, which naturally has only 1 SATA port, I used a M.2 to 5x SATA Adapter as shown below. This allowed me to connect up to 6 Drives in total, thanks to its JMB585 Controller running at PCIe Gen3x2 speeds - perfect for a Basic license. Unfortunately during intense use, such as a parity check, I got loads of Smart errors (UDMA CRC Errors) and tried everything, even adding a small heatsink to no avail. Now rocking a new Motherboard (with 2.5Gig Ethernet) and thanks to this or this post that helped me get everything going again, I have not had a single UDMA CRC error during parity check. It's not just the cables Hope this helps and thank you all for contributing to this forums thereby helping people like me *namely NUC5i5RYB with i5-5250U 2C4T CPU and 6GB Sodimm.

Ok, so I would like to clarify for future readers, how exactly does one remove the 2nd parity drive, to be wiped clean for general use? I do not want to incorporate the drive in my array again. I am unsure about the information here: https://wiki.unraid.net/Shrink_array ...because I really have an irrational fear of killing my data. Thank you so much...

This is perfect, I tried with a 6GB file and it stayed at 113MB/s, rock solid! Thank you so much! Turbo write does what I need.

Wanna share my first theory but abandoned it soon: I am using an M.2 to 5 SATA Port converter. It uses the JMB585 that connects with PCIe 3 x2, but my NUC Mainboard's M.2 slot gives PCIe 2 x4. This results in an effective PCIe 2x2 connection, which has a maximum speed of 1 Gbit/s. This adapter is used by the two data drives, while the parity drive is directly connected via the single SATA port on the mainboard. So I don't see how this is a bandwith issue since only one drive should be written to. Especially since it can reach those 112MB/s for the first Gigabyte...

Hey there, so this is my first build and serves as storage with parity only, no VMs, apps, dockers. I have Gigabit Ethernet providing theoretical read/write speeds of 112 MB/s.. Now I started off with two drives, one parity (WD Red 4TB CMR😉), and one storage drive (WD Red 3TB). All worked well, I could transfer dozens of GBs and always had 112 MB/s writes to the server. (All devices are Gigabit-capable, PC, switch and Unraid) But ever since I added a third drive (Seagate IW 4TB) as a second storage drive, my write speeds drop down from 112MB/s to 40MB/s - max. 60MB/s after pretty much 1GB written to the array. This doesn't change, no matter what drive I write upon or with what allocation method or what SATA port/cable I use. Is this normal? Yes, both drives worked normally before and I got writes from 190-120 depending on how full the drive is. Same speeds still occur during parity checks. Thanks for any input! PS: Since I mainly write to the array, this is quite important to me. Uploads now take 2-3x longer. And I don't do this professionally, it only stores personal files so I am not in the business for 10 Gbit Networking, because I don't need it. A HDD can't write at 1,12 GB/s anyway.

Hey people, So I am so close to getting my first build ready, only one HDD is missing. I‘ve read that the installation is a very crucial part, with some regretting the setup choices they made with their builds. So I need your help and love to hear from your suggestions. Use: I only want to store personal data (documents & photos) on my Nas. It should act as a BACKUP only! What I really want is is safety of my data and owning them. I also have extra rigs available and a location to setup an offshore backup too, data safety is highest priority. Or what is the industry standard? I've heard people raging about duplicati... how do you backup? I would occasionally turn on the NAS to load up pictures and videos maybe every two weeks but might in distant future use it to stream movies off it, rarely though. Other times I‘d love to access the pictures from all mobile devices in my home (LAN only) primarily from my Windows PC, iPad and iPhone. The last use case would be for it to act as a digital library for hundreds of PDFs to be accessible from home, like science papers or music scores. Most of the times, it‘ll be shutdown though. I anticipate about 1TB of growth per year with 3 TB to start, so I will upgrade in 4TB increments up to 6 drives with one parity drive. The max. of 20TB will surely suffice till 2030 and until then I will be in a different financial position to find a successor if needed. (I’m a student, 20 years old) Is there any doubt on Unraid not being the best way to go for my needs? Lastly I want my NAS to just work, I'm good with hardware but terribly bad with software. Thank you Upcoming NAS Hardware: Intel 5300U (yeah, using a NUC!) 2x4GB RAM up to 6 SATA Ports, 1x 4TB Parity and 1x 4TB to start with. Adding 4TBs as I go, at max every two years Unraid basic license incoming.

What about being able to connect your NAS via Thunderbolt 3 if the motherboard supports it. Many do nowadays. Or even act as mass storage via USB 3.1 Gen 2 Connector?