boraq11

Hi, sorry for late response. Yeah, two 16 TB disks in total, one as parity.

Hi, this is my first topic, I hope I am in the right section, but my question is about a problem with SMB sharing. The hardware: for testing Unraid I am using an old HP G8 microserver with Xeon 1220 and 16 GB DDR3 ECC RAM. I use two Seagate IronWolf Pro 16 TB as primary storage (fill-up), two old WD green for testing purposes, no cache. I am using Veeam Agent free on my notebook (Windows 11). Creating a backup to an Unraid array is a bit weird. I reach max 700 Mbit/s, which is okay, I guess my notebook is the bottleneck creating the backup. But the problem is, every 30–60 seconds the throughput drops to 0 for up to 30 seconds. Neither my notebook nor Unraid shows throughput, so it seems to be really 0. Using Wi-Fi, I do not have this problem, maybe because only 250 Mbit/s are possible, but: using another backup software I do not have this problem either. Bigger but: backing up to another SMB share, my desktop for example, I do not have this problem on the notebook. Same job, same settings ... iperf shows 909/902 Mbit/s (sender/receiver). Do you have an idea for me? Veeam is using VSS and CBT, I do not see a problem here. Backing up the notebook to an external harddrive is much faster, above all, writing is continuous. When copying a 100 GB test file from the notebook to unraid (same folder), I also have constant speed. Thank you!