LSI SAS1068E based controllers and md RAID

Any one had any experience using an LSI 1068E based SAS controller to 
build md RAID arrays using SATA drives on AIC Vitesse port expanders?

I am using an LSI SAS3442E card and the port expander ID is Vendor: AIC 
      Model: SJ16_ED-VB-1.0A2 Rev: 01A2.

I am seeing Code={Abort} errors on writes which are not due to faulty 
drives.

More details if anyone is interested, but at this stage would like to 
know of successful implementations.

Regards,

Richard