I have been using a QNAP NAS 6-bay setup at work for the past 2 years with R/W speeds upwards of 1.4GB/Sec (thanks to 2TB cache and 32GB Ram in the NAS). Until about a month ago those speeds were constant. Now, all of a sudden, I'm hitting 100MB/sec with absolutely no changes to my setup, connection, drives, software, etc. I have no idea what's happened, but it's a massive problem to my editing workflow. I've checked NAS software and updated. I've (of course) restarted the system. I've done a performance check in the NAS software and each drive is individually showing R/W speeds at 200+MB/Sec, so how in the world am I getting bottlenecked at 100MB/Sec?! Running at work on a 12-core 2019 Mac Pro with AMD RX 6900 XT GPU.
Similarly, I had my traditional RAID at home fail, so I purchased new drives and that RAID is having the same problem! I'm pulling max 180MB/Sec in a 5-bay RAID 0. It's connected via Thunderbolt 3 and used to get between 700-900MB/Sec. I'm pulling my hair out over this and have no idea where to even start to get help. The drives are all 7200RPM with 256MB Cache. Running at home on a 2013 6-core d700 Mac Pro.
Similarly, I had my traditional RAID at home fail, so I purchased new drives and that RAID is having the same problem! I'm pulling max 180MB/Sec in a 5-bay RAID 0. It's connected via Thunderbolt 3 and used to get between 700-900MB/Sec. I'm pulling my hair out over this and have no idea where to even start to get help. The drives are all 7200RPM with 256MB Cache. Running at home on a 2013 6-core d700 Mac Pro.