Slow Parity check

Hello.  Woke up this morning to find Unraid doing a parity check. It doesn't show any errors that I see but its completing it at less then 1MB/sec with over a month to complete it. My hardware is as follows

MB : Supermicro X9SCM-F

HDD : 6 WD 2 TB green drives

1 AOC-SASLP-MV8

Unraid 4.7

I have 4 HDD connected to the MB sata 2 ports and the other 2 on the AOC-SASLP-MV8

Can someone please have a look at my syslog to see if anything stands out as to what could be causing this.

I did noticed in unmenu there were a couple lines that were red

Sep  3 08:51:24 Tower kernel: irq 16: nobody cared (try booting with the "irqpoll" option) (Errors)

Sep  3 08:51:24 Tower kernel: Pid: 0, comm: swapper Not tainted 2.6.32.9-unRAID #8 (Errors)

Sep  3 08:51:24 Tower kernel: Call Trace: (Errors)

Sep  3 08:51:24 Tower kernel:  [<c10451cf>] __report_bad_irq+0x2e/0x6f (Errors)

Sep  3 08:51:24 Tower kernel:  [<c1045305>] note_interrupt+0xf5/0x13c (Errors)

Sep  3 08:51:24 Tower kernel:  [<c1045a14>] handle_fasteoi_irq+0x5f/0x9d (Errors)

Sep  3 08:51:24 Tower kernel:  [<c1004a82>] handle_irq+0x1a/0x24 (Errors)

Sep  3 08:51:24 Tower kernel:  [<c1004285>] do_IRQ+0x40/0x96 (Errors)

Sep  3 08:51:24 Tower kernel:  [<c1002f29>] common_interrupt+0x29/0x30 (Errors)

Sep  3 08:51:24 Tower kernel:  [<c116d019>] ? acpi_idle_enter_bm+0x216/0x23f (Errors)

Sep  3 08:51:24 Tower kernel:  [<c12108e8>] cpuidle_idle_call+0x63/0x9b (Errors)

Sep  3 08:51:24 Tower kernel:  [<c1001a14>] cpu_idle+0x3a/0x4e (Errors)

Sep  3 08:51:24 Tower kernel:  [<c128a8bf>] rest_init+0x53/0x55 (Errors)

Sep  3 08:51:24 Tower kernel:  [<c13f580c>] start_kernel+0x27b/0x280 (Errors)

Sep  3 08:51:24 Tower kernel:  [<c13f5091>] i386_start_kernel+0x91/0x96 (Errors)

But I have no idea what these mean.

Thanks for the help.

syslog.txt