When I'm running Parity check my speed is x00 KB/s from around 140 MB/s that I usualy get. When I looke at the sys log, I found this error getting spamed non-stop. When Parity check is not running error is going away.
Sep 4 21:53:23 Tower kernel: ata2.00: exception Emask 0x52 SAct 0x7f SErr 0x4070c02 action 0xe frozen
Sep 4 21:53:23 Tower kernel: ata2.00: irq_stat 0x00400000, PHY RDY changed
Sep 4 21:53:23 Tower kernel: ata2: SError: { RecovComm Proto HostInt PHYRdyChg PHYInt CommWake DevExch }
Sep 4 21:53:23 Tower kernel: ata2.00: failed command: READ FPDMA QUEUED
Sep 4 21:53:23 Tower kernel: ata2.00: cmd 60/40:00:88:b0:19/05:00:00:00:00/40 tag 0 ncq dma 688128 in
Sep 4 21:53:23 Tower kernel: res 40/00:20:c8:c0:19/00:00:00:00:00/40 Emask 0x52 (ATA bus error)
Sep 4 21:53:23 Tower kernel: ata2.00: status: { DRDY }
Sep 4 21:53:23 Tower kernel: ata2.00: failed command: READ FPDMA QUEUED
Sep 4 21:53:23 Tower kernel: ata2.00: cmd 60/40:08:c8:b5:19/05:00:00:00:00/40 tag 1 ncq dma 688128 in
Sep 4 21:53:23 Tower kernel: res 40/00:20:c8:c0:19/00:00:00:00:00/40 Emask 0x52 (ATA bus error)
Sep 4 21:53:23 Tower kernel: ata2.00: status: { DRDY }
Sep 4 21:53:23 Tower kernel: ata2.00: failed command: READ FPDMA QUEUED
Sep 4 21:53:23 Tower kernel: ata2.00: cmd 60/80:10:08:bb:19/00:00:00:00:00/40 tag 2 ncq dma 65536 in
Sep 4 21:53:23 Tower kernel: res 40/00:20:c8:c0:19/00:00:00:00:00/40 Emask 0x52 (ATA bus error)
Sep 4 21:53:23 Tower kernel: ata2.00: status: { DRDY }
Sep 4 21:53:23 Tower kernel: ata2.00: failed command: READ FPDMA QUEUED
Sep 4 21:53:23 Tower kernel: ata2.00: cmd 60/40:18:88:bb:19/05:00:00:00:00/40 tag 3 ncq dma 688128 in
Sep 4 21:53:23 Tower kernel: res 40/00:20:c8:c0:19/00:00:00:00:00/40 Emask 0x52 (ATA bus error)
Sep 4 21:53:23 Tower kernel: ata2.00: status: { DRDY }
Sep 4 21:53:23 Tower kernel: ata2.00: failed command: READ FPDMA QUEUED
Sep 4 21:53:23 Tower kernel: ata2.00: cmd 60/40:20:c8:c0:19/05:00:00:00:00/40 tag 4 ncq dma 688128 in
Sep 4 21:53:23 Tower kernel: res 40/00:20:c8:c0:19/00:00:00:00:00/40 Emask 0x52 (ATA bus error)
Sep 4 21:53:23 Tower kernel: ata2.00: status: { DRDY }
Sep 4 21:53:23 Tower kernel: ata2.00: failed command: READ FPDMA QUEUED
Sep 4 21:53:23 Tower kernel: ata2.00: cmd 60/40:28:08:c6:19/05:00:00:00:00/40 tag 5 ncq dma 688128 in
Sep 4 21:53:23 Tower kernel: res 40/00:20:c8:c0:19/00:00:00:00:00/40 Emask 0x52 (ATA bus error)
Sep 4 21:53:23 Tower kernel: ata2.00: status: { DRDY }
Sep 4 21:53:23 Tower kernel: ata2.00: failed command: READ FPDMA QUEUED
Sep 4 21:53:23 Tower kernel: ata2.00: cmd 60/40:30:48:cb:19/05:00:00:00:00/40 tag 6 ncq dma 688128 in
Sep 4 21:53:23 Tower kernel: res 40/00:20:c8:c0:19/00:00:00:00:00/40 Emask 0x52 (ATA bus error)
Sep 4 21:53:23 Tower kernel: ata2.00: status: { DRDY }
Sep 4 21:53:23 Tower kernel: ata2: hard resetting link
Sep 4 21:53:29 Tower kernel: ata1: found unknown device (class 0)
Sep 4 21:53:29 Tower kernel: ata2: found unknown device (class 0)
Sep 4 21:53:33 Tower kernel: ata1: softreset failed (1st FIS failed)
Sep 4 21:53:33 Tower kernel: ata1: hard resetting link
Sep 4 21:53:33 Tower kernel: ata2: softreset failed (1st FIS failed)
Sep 4 21:53:33 Tower kernel: ata2: hard resetting link
Sep 4 21:53:36 Tower kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Sep 4 21:53:37 Tower kernel: ata2.00: configured for UDMA/33
Sep 4 21:53:37 Tower kernel: ata2: EH complete
Sep 4 21:53:38 Tower kernel: ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Sep 4 21:53:38 Tower kernel: ata1.00: configured for UDMA/33
Sep 4 21:53:38 Tower kernel: ata1: EH complete
tower-diagnostics-20230904-2144.zip