Ended up replacing the T4 cable (with 2.0M OWC) from the hub to the drives. Made a reasonable difference, IMO. PIC. More importantly, it's now reliabl...

@dmetz Not having this issue here.

@SoftRAID Got it. Thanks!

@SoftRAID Yes. As stated, this is a non-RAID disk speed using a startup disk MacMini internal on the network. I use this as a basis of comparison f...

Continuing to test and compare with other drives to narrow down the path that run slowly after 3+ iterations in AJA System Test Lite. So far, findin...

@SoftRAID In reviewing the screenshots I sent you and repeating them, noticing a high error rate on R/W readings (you'll see it in the screenshots). A...

@SoftRAID Hindsight being what it is, should've tested without encryption first. I did test the array before updating, but did not test after upgradin...

@SoftRAID So you're saying that erase and restore would now be the best way to return it to some semblance of speed? Backing it up to an external devi...

This is now an unencrypted disk that had improved performance when left in that state for 24 hours as you suggested. However, after a longer period an...

So how do you downgrade the Driver, for example, from 8.0 to 7.6.1?

My previous issue resolved by @SoftRAID is discussed here. This seems like a reversion to me. But waiting to hear further...

@SoftRAID Yippee! Theory proven. Thanks so much for the tip. This is more like it. 😎 😎 😎