Woodpusherghd Posted September 18, 2020 Share Posted September 18, 2020 (edited) I often mount a drive in a Star Tech external caddy via esata as an unassigned disk. When it drops off line (without being unmounted, usually happens a few hours after mounting) the following error message is flooding the system log: Sep 18 10:31:01 Tower kernel: BTRFS error (device dm-0): bdev /dev/mapper/Unassigned_Disk_VM errs: wr 0, rd 8019, flush 0, corrupt 0, gen 0 I have enabled esata in the motherboard bios for this sata connection. Any suggestions? Diagnostics attached. tower-diagnostics-20200918-1033.zip Edited September 18, 2020 by Woodpusherghd Quote Link to comment
JorgeB Posted September 18, 2020 Share Posted September 18, 2020 Try a different cable, and one as short as possible, initial connection, at least the ones I saw are only linking at 1.5gbps: Sep 12 10:59:21 Tower kernel: ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310) That already suggests a connection quality problem, later the disk dropped offline: Sep 15 07:14:24 Tower kernel: ata1: hard resetting link Sep 15 07:14:24 Tower kernel: ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310) Sep 15 07:14:54 Tower kernel: ata1.00: qc timeout (cmd 0xec) Sep 15 07:14:54 Tower kernel: ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4) Sep 15 07:14:54 Tower kernel: ata1.00: revalidation failed (errno=-5) Sep 15 07:14:54 Tower kernel: ata1.00: disabled Quote Link to comment
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