userano218n

Would the 2nd parity be the same as doing raidz2?

I am now running with a 4 disk zfs pool. the array seems required, so i just plugged in a 128mb usb drive and it seemed happy and lets me start the array which brings my pool online. what are the use cases for why i would need an array vs a pool? im trying to understand the differences between the two and why the array is required. thanks!

Just did a fresh deployment of 6.12.9. Well, I dont think I set any of this up correctly the first time. Watching a video and this time I did the following config. Plugged in a 256gb USB drive so I have 1 array disk (odd requirement) and then I took and all 4 of the 16tb and added them to a pool which I just formatted as zfs raidz 1 group of 4 devices - compression off. Should I turn off autotrim?

I have a QNAP with 4x 16tb drives in the system. The problem I am running into is when I am using my other QNAP, 673a running QuTS Hero/ZFS (6x 16tb drives), doing a Hybrid Backup Station copy of data. The folder I am using for testing purposes primarily contains ISO images (software share). As the data copies over, file copies will pop up to around 3gb (10gb network) and then all of a sudden, everything will stop. The QNAP seems to be waiting on the Unraid system to do something, write files to disk? move them around to other disks? I'm not sure what's going on, but it took close to 4 hours to copy 289gb of data over. I tried changing the allocation method, file system type (xfs, zfs, brtfs), etc. Does Unraid require some sort of 'fast m.2 solid state cache' to sit between the raid volume and incoming data to keep up with writes? I wiped the setup and installed TrueNAS and everything performed as expected there - sustained 2gb+ file transfers. But TrueNAS has very little hardware support via BSD and the disks without plugins to properly spin up fans to cool them down were running at high temperature. Any ideas? I plan to put Unraid back on it here soon to try whatever suggestions the community has. Thanks!

yes there is a single array created on the storage which comes with the system. im just using that storage for docker images and vm's. its formatted as single disk xfs file system.

I have deployed Unraid6 on to this system for the sole purpose of using it to host virtual machines and docker containers/apps. This system has 64 gb ram and 24 xeon cpu's. The internal storage on this system is a 1tb ssd drive (not a standard m.2 interface). It seems to work fine, but I keep receiving heat warnings for it. Are these false positives? I have with other operating systems pushed this machine and in doing so the entire case will become warm as it dissipates heat - nothing like that here happening. Ive searched around and not really found anyone using a 6,1 for Unraid, but maybe someone else out there has done this and has a solution for whats taking place? This last 'overheated' warning I got said it was up to 138 F.