cptechnology

I may be stupid, but I don't understand this part: "Just mount the directories you want backed up under the /data volume", I can't seem to find any /data volume on my unraid server?

Unfortunately despite spending 2 days going through forum posts and trying different configs, I was never able to achieve anymore than 30MB/s on unraid

I guess what I mean is that most other systems seem to use more of a RAID 50 config, striping over the raid array so there is no need to know how large the file will be for that given drive. I got fed up with unraid and its extremely poor performance last night and ended up trying FreeNAS. It was more involved in setting up but now I can get 80-90MB/s write speeds consistently. It appears to stripe the data over the array.

I know I haven't been using UNRAID for very long, and I am sure there are reasons for it being programmed the way it has, but having to make a guess at what the largest file might be so UNRAID doesn't try and write to a full disk seems rather primitive. I have not come across any other software that requires that, and this is paid software.

The share it was writing to was set to use Cache, and the cache storage/write info never changed while rsync was running. I had another issue last night where it was copying files via the network but after the cache drive filled up windows reported that the drive was full and wouldn't let the process continue to transfer.

Hi All, First time poster here, just started using UNRAID over the last few days because people seem to rave about it and how easy it is to use, and they are correct in that it is easy to use. The problem I am having is that I get some odd write speed behaviour. Firstly my setup. I have a HP DL380E Gen 8 with 32GB of Registered ECC RAM LSI SAS9210-8i HBA card (I need to check if its running in IR or IT mode) 6x 6TB Seagate Barracuda 5400RPM Drives in the array (1 as parity) 1 more 6TB outside the array (I plan to add it to the array once I copy stuff off it) 2x 120GB SSD's as Cache drives. Doing some reading on the forum it seems people are having issues with v6.7.x, so I downgraded to 6.6.7 but my issues still remain. The Problem Doing an RSYNC from the 6TB outside the array to one of the array disks starts off at about 100MB/s+ but after 10-20 seconds it drops to 20MB/s and then moves around up to 30MB/s all the way down to 500kb/s. These are large files its copying, from 500MB up to 100GB each. The average speeds per file reported by RSYNC range from 7MB/s to 42MB/s. I also copy stuff via the gigabit ethernet from my pc which seems to use the cache drives (rsync does not, I guess because its not going through SMB) and it starts off saturating the network at 112MB/s for a good 30 seconds before it drops down to around 30MB/s and then its up and down like a yoyo, sometimes dropping to 0b/s for about 5 seconds before going back up again. TOP reports iowait of 40%+, iotop shows write speeds jumping all around spiking as high as 250MB/s I understand write speeds will be fairly low with a parity drive, but I don't understand the variability in the write speeds, especially the start-and-stop nature of them. My previous NAS was running on an old i7-930 with 16gb RAM, using OpenMediaServer and it would give me read and write speeds that saturate my gigabit network consistently. Of course that is a completely different system and not on the DL380. I have attached the diagnostics, and I would appreciate any help. pegasus-diagnostics-20190905-2209.zip