August 16, 20232 yr I have a btrfs cache pool of two SSD drives and got an alert about a CRC error on one drive (which shows up in smart data as 1 total). Is there any action to take here if this does not repeat? From what I've read and from the logs, it seems like it reset the link and wrote the data and I'm good for now unless it keeps happening, which is when I should reseat cables, etc... Just wanted to check with the forum if this is the right information. Thanks! (log of entire event below) Aug 15 18:57:56 Tower kernel: ata4.00: exception Emask 0x10 SAct 0x7000000 SErr 0x400100 action 0x6 frozen Aug 15 18:57:56 Tower kernel: ata4.00: irq_stat 0x08000008, interface fatal error Aug 15 18:57:56 Tower kernel: ata4: SError: { UnrecovData Handshk } Aug 15 18:57:56 Tower kernel: ata4.00: failed command: WRITE FPDMA QUEUED Aug 15 18:57:56 Tower kernel: ata4.00: cmd 61/20:c0:e0:17:46/00:00:00:00:00/40 tag 24 ncq dma 16384 out Aug 15 18:57:56 Tower kernel: res 40/00:d0:a0:15:46/00:00:00:00:00/40 Emask 0x10 (ATA bus error) Aug 15 18:57:56 Tower kernel: ata4.00: status: { DRDY } Aug 15 18:57:56 Tower kernel: ata4.00: failed command: WRITE FPDMA QUEUED Aug 15 18:57:56 Tower kernel: ata4.00: cmd 61/20:c8:a0:16:46/00:00:00:00:00/40 tag 25 ncq dma 16384 out Aug 15 18:57:56 Tower kernel: res 40/00:d0:a0:15:46/00:00:00:00:00/40 Emask 0x10 (ATA bus error) Aug 15 18:57:56 Tower kernel: ata4.00: status: { DRDY } Aug 15 18:57:56 Tower kernel: ata4.00: failed command: WRITE FPDMA QUEUED Aug 15 18:57:56 Tower kernel: ata4.00: cmd 61/20:d0:a0:15:46/00:00:00:00:00/40 tag 26 ncq dma 16384 out Aug 15 18:57:56 Tower kernel: res 40/00:d0:a0:15:46/00:00:00:00:00/40 Emask 0x10 (ATA bus error) Aug 15 18:57:56 Tower kernel: ata4.00: status: { DRDY } Aug 15 18:57:56 Tower kernel: ata4: hard resetting link Aug 15 18:57:56 Tower kernel: ata4: SATA link up 6.0 Gbps (SStatus 133 SControl 300) Aug 15 18:57:56 Tower kernel: ata4.00: supports DRM functions and may not be fully accessible Aug 15 18:57:56 Tower kernel: ata4.00: supports DRM functions and may not be fully accessible Aug 15 18:57:56 Tower kernel: ata4.00: configured for UDMA/133 Aug 15 18:57:56 Tower kernel: ata4: EH complete Aug 15 18:57:56 Tower kernel: ata4.00: Enabling discard_zeroes_data
August 16, 20232 yr Community Expert Solution For a single error I wouldn't do anything, if it keeps happening replace the SATA cable.
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