UNMAP delays possibly causing FC errors

Just upgraded from 11.3-U2 (~180 days of uptime no issues that I recall regarding this.) Now on 11.3-U4.1, it started a scrub after it came up and is causing the systems that run on it to lockup fairly frequently. I am sure I am missing the info you want, so please ask me for anything that you don't see in the debug or want to know.

Sep 13 23:50:53 The-Archive (0:4:10/10): UNMAP. CDB: 42 00 00 00 00 00 00 03 e8 00
Sep 13 23:50:53 The-Archive (0:4:10/10): Tag: 0x12a6f0, type 1
Sep 13 23:50:53 The-Archive (0:4:10/10): ctl_process_done: 288 seconds
Sep 13 23:50:53 The-Archive isp1: CTIO7 completed with Invalid RX_ID 0x12a6f0
Sep 13 23:50:54 The-Archive isp1: CTIO7 completed with Invalid RX_ID 0x12a6f0
Sep 13 23:50:54 The-Archive isp1: isp_handle_platform_ctio: CTIO7[12a6f0] seq 0 nc 1 sts 0x8 flg 0x1 sns 0 resid 0 MID
Sep 13 23:50:54 The-Archive isp1: CTIO7 completed with Invalid RX_ID 0x12a6f0
Sep 13 23:50:54 The-Archive isp1: isp_handle_platform_ctio: CTIO7[12a6f0] seq 1 nc 1 sts 0x8 flg 0x8040 sns 0 resid 0 FIN
Sep 13 23:50:54 The-Archive isp1: CTIO7 completed with Invalid RX_ID 0x12a6f0
Sep 13 23:50:54 The-Archive isp1: CTIO7 completed with Invalid RX_ID 0x12a6f0
Sep 13 23:50:54 The-Archive isp1: isp_handle_platform_ctio: CTIO7[12a6f0] seq 0 nc 1 sts 0x8 flg 0x1 sns 0 resid 0 MID
Sep 13 23:50:54 The-Archive isp1: CTIO7 completed with Invalid RX_ID 0x12a6f0
Sep 13 23:50:54 The-Archive isp1: isp_handle_platform_ctio: CTIO7[12a6f0] seq 1 nc 1 sts 0x8 flg 0x8040 sns 0 resid 0 FIN
Sep 13 23:50:54 The-Archive isp1: CTIO7 completed with Invalid RX_ID 0x12a6f0