Hi Everybody, I've been trying to find a way to write much faster to individual disks in my Array (something like a multi-threaded Mover using rSync).

Array: 8xHC550 18TB (2 Parity), turbo write enabled.

When writing to my array (individual rSyncs to Disk1, Disk2, Disk3... from an NVME) the speed is super slow, ~100MB/s for all 6 disks (HC550) combined. But if I read from my array, I'm able to see ~1.1GB/s

Is this behaviour normal? Is writing to individual Disks in an Array (multi threaded) slow due to parity writes?

Thanks

Edited October 11, 2025Oct 11 by Froggy_UnRAID

Writes to the array are limited by parity; it won't be faster writing to multiple disks, in fact, it will typically be slower than writing to a single disk with turbo write enabled.

Gracias JorgeB!

That's what I thought, just wanted to make sure it wasn't something I was doing.