Date: Sun, 24 Sep 2017 15:48:26 +1000 From: Graham Menhennitt <graham@menhennitt.com.au> To: FreeBSD stable <freebsd-stable@freebsd.org> Subject: disk errors: CAM status: Uncorrectable parity/CRC error Message-ID: <206df4a1-4666-f0db-12e4-ec7958d9f7b3@menhennitt.com.au>
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G'day all, I'm setting up a machine running 11-Stable on a PC Engines APU2C board.=20 It has a 16Gb SSD as its first disk (ada0), and a Seagate 2Tb SATA-3=20 disk as its second (ada1). I'm getting lots of read errors on the second=20 disk. They appear on the console as: (ada1:ahcich1:0:0:0): READ_FPDMA_QUEUED. ACB: 60 00 00 6b 02 40 00 00 00=20 01 00 00 (ada1:ahcich1:0:0:0): CAM status: Uncorrectable parity/CRC error (ada1:ahcich1:0:0:0): Retrying command dmesg: <ST2000DM001-1ER164 CC25> ACS-2 ATA SATA 3.x device ada1: Serial Number XXXXXXXX ada1: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes) ada1: Command Queueing enabled ada1: 1907729MB (3907029168 512 byte sectors) ada1: quirks=3D0x1<4K> I've replaced the disk and the cable without improvement. Unfortunately,=20 I don't have a second CPU board to try. Is it possible that the board can't keep up with the data coming from=20 the disk? If so, can I try slowing it down somehow? Any other suggestions, please? Thanks, =C2=A0=C2=A0=C2=A0 Graham
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