Gerco

@itimpi Thank you once more. 🙂 It'll be a toss-up between flexibility and less robustness (BTFRS) and performance, robustness, but less flexible (ZFS). I'll sit back with a glass of wine to think about this.

@itimpi Thank you. This is very helpful. I have a full copy of my data, I could start over again. I wouldn't say my use is WORM but more like Write more or lease regularly Read Many. I used ZFS in TrueNas scale; the performance was good, as mentioned earlier, but extending the pool was a drag. Extending a pool in BTFRS is easy; ZFS requires adding a new Vdev with the same number of disks. That's why I am reluctant to use ZFS. I was unaware that Mover only becomes active when the server has little to do, but I had indeed already noticed that moving cache to array was not very fast.

I am relatively new to this forum. Administrators, please let me know if I am violating any rules and/or posting in the wrong section. I hope you can help me with a performance issue. I will try to describe it as clearly as possible: I have a ProLiant DL380 Gen9 and a ProLiant ML310e Gen8.2. These two servers are directly connected to each other via two 10GB network cards. Until recently, I was running TRUENAS Scale on both servers. Using the built-in Data Replication, I created backups from the DL380 to the ML310e. I achieved an almost constant speed of 5GB per second. I have now installed UNRAID 7.0.1 on the DL380, while the other still runs TrueNAS Scale. The UNRAID array consists of 14 hard disks of 8TB each, formatted with the XFS file system, with one parity disk and two SSD cache drives (mirrored) using BTRFS. I mount the data on the other server via an SMB share, and using Rsync (user script), I am now transferring the data back from the ML310e to the DL380. When I configure the cache as the first drive and the array as the second for the relevant share, I achieve a transfer speed of 2GB per second max. When the cache gets full, the speed collapses. I am using CA Mover Tuning, and I’ve set it to write from cache to array when the cache exceeds 50% capacity. If I don’t use the cache and have construct write enabled, I barely reach 1GB per second transfer speed. I changed the network settings for the relevant port from 1500 MTU to 9000 MTU, but this did not bring significant improvement. Does anyone have suggestions for what I could try to improve the speed? Could it be related to the Rsync protocol?

I have installed a 5900x processor and a water cooler instead of an air cooler. Since then, I haven't experienced any CPU lockups. Thank you for all your help! @trurl

@trurl I noticed a wrong setup of one of the drives. The mover could not move the files on the cache drive to the HDD because I had incidentally excluded both drives where I wanted to exclude only one. I don't expect this could lead to the CPU locking up. I'll leave the Unraid server running and if the CPU locks up, I will provide the syslog on the remote server.

Here's the diagnostics file. I am setting up the syslog server now. Cut: ---- The Syslog server is set up and running. I am storing the syslog remotely on my Proxmox server. unraid-diagnostics-20250311-2140.zip

Sorry to say, but my CPU locked up even after setting the BIOS as mentioned in your reply. It seems like the CPU locks up after I copy data from an Unraid drive to another (Unraid) drive. I have backed up the data and will try the XFS file system instead of ZFS. I could also revert to firmware 6.12.13, or do you @trurlexpect this to be pointless?

Thanks! I'll give this a shot.

This is my first post here. I hope I am addressing this in the right section (moderator, please let me know where to put this, in case this section is incorrect). I am running Unraid 7.0 on a Gigabyte X570 UD motherboard and 48GB of memory, CPU Ryzen 5800X, plus an Nvidia 2060 super video card. I have a few Docker images (Plex, JellyFin, ..) and a few plugins running. The motherboard is built in a case with 9 fans, including the fans of the CPU water cooling. Unraid seems to halt after a few hours uptime. Tonight I was monitoring the CPU and it struck me that 1 thread (core if you will) was stuck at 100%, a few minutes later two threads followed to be stuck at 100% and then it looked like Unraid froze. All I can do is hard-power down the PC and boot up again. Would any of you have any suggestions on where to start looking? I will check if I have the latest BIOS for the motherboard (don't expect anything here though) and will search for and go over logfiles. Thanks in advance, Gerco van der Boon, Wormer, Netherlands.