Why is Thunderbay 4 with SoftRaid So much slower than a Promise Pegasus R4?
So I have a Thunderbay 4 drive with Thunderbolt 3 and also just purchased a Pegasus3 R4. Both are connected via Thunderbolt 3 and the Promise is formated as raid 5.
The Promise is over double the speed writing and substantially faster reading
Here is the speed comparison
What are the drives in each?
Use AJA System test (free in app store), it is a more reliable and consistent benchmark test.
My recommended settings to test disks, not CPU are:
5K video resolution (any)
16 GB or 64GB file size.
Promise Raid R4
Substantially slower given they are both Thunderbolt 3
This OWC does not have the same HD though it's my Secon OWC with WD Red Drives
but results are pretty similar to my previous test where I swapped the same drives over.
The test you need to do, which I did, was set each individual disk to be JBOD. That is what I did in my testing. I won't have access to the Promise box to repeat this testing immediately, but will get to it when I can.
@softraid-support not really I run my units as Raid 5 not JBOD so that’s the speed i’m interested in. That’s ok a just on top of all the SoftRaid issues and Kernel panics I experienced. So unfortunately I will have to say goodby to OWC storage solutions.