Ellory Yu wrote:Can you give more details on how is your Mac Studio configured and how your disc are allocated for DVR?
That will allow the forum to understand your setup and possibly provide suggestions.
I don't understand what DVR means but the Lacie is in Raid5. It's a 20TB drive with 16TB usable space. Computer is Mac Studio with M1 Max chip, 10-core CPU and 32GB of GPU. MacOS Monterey 12.3.1. All drivers etc. are up to date.
Lacie 5big is connected via the Apple Thunderbolt 2 - Thunderbolt 3 adapter on the Mac Studio's Thunderbolt 4 connection.
At first I thought maybe it's the adapter but I've tried connecting other Thunderbolt hard drives through it and Disk Speed Test gives about the same results on both the iMac and Mac Studio. For example a Lacie Rugged 512GB SSD gives around 230MB/s write and 380MB/s read on both machines.