Looking for help to troubleshoot high IO that started all of a sudden

[IxsharpxI]

Hello,

my machine use to run very efficiently always staying under a few % of IO delay. nothing really changed that I can tell it just started to run one and day and max our RAM. I do have two zfs pools of SSDs, so other then the probably incorrect use of TRIM they should be fast and all with less than 10% wear. Ive attached a few pics of test I've ran. if anyone has any ideas or can tell me more about the processes at 99% IO.

Thanks

 

[IxsharpxI]

any ideas? im looking at about 24 hours of 40% IO delay now