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SMART health / BTFRS "Error Summary: read=4"?

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I'm receiving the error:

Unraid Cache disk SMART health [187]: 28-03-2023 17:12

Warning [TOWER] - reported uncorrect is 14
M4-CT256M4SSD2_00000000130309265B2B (sdh)

 

BTRFS Scrub:

UUID:             af9fa197-4f10-4658-b89b-002599ca51e2
Scrub started:    Tue Mar 28 17:16:28 2023
Status:           finished
Duration:         0:05:27
Total to scrub:   78.45GiB
Rate:             245.67MiB/s
Error summary:    read=4
  Corrected:      0
  Uncorrectable:  0
  Unverified:     0

 

Should I assume my cache drive has bad data (I don't know what BTRFS is actually telling me)?

Should I assume my cache drive is going bad, and needs to be replaced?

 

Thank you.

tower-diagnostics-20230329-0025.zip

Edited by Jaybau

  • Community Expert

Run another scrub and post the output.

  • Author
10 hours ago, JorgeB said:

Run another scrub and post the output.

 

UUID:             af9fa197-4f10-4658-b89b-002599ca51e2
Scrub started:    Wed Mar 29 11:24:22 2023
Status:           finished
Duration:         0:05:11
Total to scrub:   78.46GiB
Rate:             258.37MiB/s
Error summary:    read=4
  Corrected:      0
  Uncorrectable:  0
  Unverified:     0

 

  • Author

Found some more information within the Disk Log:

 

Mar 29 11:24:53 Tower kernel: ata1.00: exception Emask 0x0 SAct 0x1ffc0 SErr 0x0 action 0x0
Mar 29 11:24:53 Tower kernel: ata1.00: irq_stat 0x40000008
Mar 29 11:24:53 Tower kernel: ata1.00: failed command: READ FPDMA QUEUED
Mar 29 11:24:53 Tower kernel: ata1.00: cmd 60/00:30:50:36:24/05:00:01:00:00/40 tag 6 ncq dma 655360 in
Mar 29 11:24:53 Tower kernel: ata1.00: status: { DRDY ERR }
Mar 29 11:24:53 Tower kernel: ata1.00: error: { UNC }
Mar 29 11:24:53 Tower kernel: ata1.00: configured for UDMA/100
Mar 29 11:24:53 Tower kernel: sd 2:0:0:0: [sdh] tag#6 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=DRIVER_OK cmd_age=0s
Mar 29 11:24:53 Tower kernel: sd 2:0:0:0: [sdh] tag#6 Sense Key : 0x3 [current] 
Mar 29 11:24:53 Tower kernel: sd 2:0:0:0: [sdh] tag#6 ASC=0x11 ASCQ=0x4 
Mar 29 11:24:53 Tower kernel: sd 2:0:0:0: [sdh] tag#6 CDB: opcode=0x28 28 00 01 24 36 50 00 05 00 00
Mar 29 11:24:53 Tower kernel: I/O error, dev sdh, sector 19150984 op 0x0:(READ) flags 0x4000 phys_seg 89 prio class 0
Mar 29 11:24:53 Tower kernel: ata1: EH complete
Mar 29 11:24:53 Tower kernel: ata1.00: exception Emask 0x0 SAct 0x7f8007c0 SErr 0x0 action 0x0
Mar 29 11:24:53 Tower kernel: ata1.00: irq_stat 0x40000008
Mar 29 11:24:53 Tower kernel: ata1.00: failed command: READ FPDMA QUEUED
Mar 29 11:24:53 Tower kernel: ata1.00: cmd 60/08:b8:88:38:24/00:00:01:00:00/40 tag 23 ncq dma 4096 in
Mar 29 11:24:53 Tower kernel: ata1.00: status: { DRDY ERR }
Mar 29 11:24:53 Tower kernel: ata1.00: error: { UNC }
Mar 29 11:24:53 Tower kernel: ata1.00: configured for UDMA/100
Mar 29 11:24:53 Tower kernel: sd 2:0:0:0: [sdh] tag#23 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=DRIVER_OK cmd_age=0s
Mar 29 11:24:53 Tower kernel: sd 2:0:0:0: [sdh] tag#23 Sense Key : 0x3 [current] 
Mar 29 11:24:53 Tower kernel: sd 2:0:0:0: [sdh] tag#23 ASC=0x11 ASCQ=0x4 
Mar 29 11:24:53 Tower kernel: sd 2:0:0:0: [sdh] tag#23 CDB: opcode=0x28 28 00 01 24 38 88 00 00 08 00
Mar 29 11:24:53 Tower kernel: I/O error, dev sdh, sector 19150984 op 0x0:(READ) flags 0x800 phys_seg 1 prio class 0
Mar 29 11:24:53 Tower kernel: ata1: EH complete
Mar 29 11:24:53 Tower kernel: BTRFS warning (device sdh1): i/o error at logical 165618454528 on dev /dev/sdh1, physical 9804255232, root 5, inode 260, offset 3305271296, length 4096, links 1 (path: system/docker/docker.img)
Mar 29 11:24:53 Tower kernel: BTRFS error (device sdh1): bdev /dev/sdh1 errs: wr 0, rd 36, flush 0, corrupt 0, gen 0
Mar 29 11:24:53 Tower kernel: ata1.00: exception Emask 0x0 SAct 0x87ff0147 SErr 0x0 action 0x0
Mar 29 11:24:53 Tower kernel: ata1.00: irq_stat 0x40000008
Mar 29 11:24:53 Tower kernel: ata1.00: failed command: READ FPDMA QUEUED
Mar 29 11:24:53 Tower kernel: ata1.00: cmd 60/08:40:90:38:24/00:00:01:00:00/40 tag 8 ncq dma 4096 in
Mar 29 11:24:53 Tower kernel: ata1.00: status: { DRDY ERR }
Mar 29 11:24:53 Tower kernel: ata1.00: error: { UNC }
Mar 29 11:24:53 Tower kernel: ata1.00: configured for UDMA/100
Mar 29 11:24:53 Tower kernel: sd 2:0:0:0: [sdh] tag#8 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=DRIVER_OK cmd_age=0s
Mar 29 11:24:53 Tower kernel: sd 2:0:0:0: [sdh] tag#8 Sense Key : 0x3 [current] 
Mar 29 11:24:53 Tower kernel: sd 2:0:0:0: [sdh] tag#8 ASC=0x11 ASCQ=0x4 
Mar 29 11:24:53 Tower kernel: sd 2:0:0:0: [sdh] tag#8 CDB: opcode=0x28 28 00 01 24 38 90 00 00 08 00
Mar 29 11:24:53 Tower kernel: I/O error, dev sdh, sector 19150992 op 0x0:(READ) flags 0x800 phys_seg 1 prio class 0
Mar 29 11:24:53 Tower kernel: ata1: EH complete
Mar 29 11:24:53 Tower kernel: BTRFS warning (device sdh1): i/o error at logical 165618458624 on dev /dev/sdh1, physical 9804259328, root 5, inode 260, offset 3305275392, length 4096, links 1 (path: system/docker/docker.img)
Mar 29 11:24:53 Tower kernel: BTRFS error (device sdh1): bdev /dev/sdh1 errs: wr 0, rd 37, flush 0, corrupt 0, gen 0
Mar 29 11:29:33 Tower kernel: BTRFS info (device sdh1): scrub: finished on devid 2 with status: 0

 

All the error logs involve "path: system/docker/docker.img".

  • Author

I performed a BTRFS scrub on my docker volume:

 

Label: none  uuid: 4978b6f9-7639-4a2f-9f94-40584c81e9c2
	Total devices 1 FS bytes used 31.73GiB
	devid    1 size 40.00GiB used 36.00GiB path /dev/loop2
	
UUID:             4978b6f9-7639-4a2f-9f94-40584c81e9c2
Scrub started:    Wed Mar 29 12:07:03 2023
Status:           finished
Duration:         0:03:43
Total to scrub:   32.87GiB
Rate:             150.92MiB/s
Error summary:    read=4
  Corrected:      0
  Uncorrectable:  0
  Unverified:     0

 

  • Community Expert

That looks like an SSD problem.

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