Posted July 31, 20213 yr Out of nowhere (no change to system) these errors popped up on all drives in the array (see attached logs). Jul 31 12:27:31 NAS kernel: BTRFS warning (device sdb1): direct IO failed ino 11586 rw 0,0 sector 0x34d0ca8 len 0 err no 10 Jul 31 12:27:32 NAS kernel: BTRFS error (device sdb1): bdev /dev/sdb1 errs: wr 1, rd 4913238, flush 0, corrupt 0, gen 0 Jul 31 12:27:35 NAS kernel: blk_update_request: I/O error, dev sdb, sector 6139136 op 0x0:(READ) flags 0x1000 phys_seg 4 prio class 0 Any hint what could be a probable cause for this? Should I be worried? nas-diagnostics-20210731-1221.zip
July 31, 20213 yr Community Expert Problem with the onboard SATA controller, all the devices dropped offline, quite common with some Ryzen boards, look for a BIOS update or use an ad-don controller.
July 31, 20213 yr Author Thank you. Can you hint at where in the logs you would find evidence for this? I'm trying to learn to read the logs better myself.
July 31, 20213 yr Community Expert Issue starts with this: Jul 31 11:43:47 NAS kernel: ahci 0000:01:00.1: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0007 address=0xce464000 flags=0x0000] Device 01:00.1 is the AMD SATA controller, after these errors the disks drop offline one by one: Jul 31 11:44:53 NAS kernel: ata1: reset failed, giving up Jul 31 11:44:53 NAS kernel: ata1.00: disabled Jul 31 11:45:19 NAS kernel: ata6: reset failed, giving up Jul 31 11:45:19 NAS kernel: ata6.00: disabled etc
August 1, 20213 yr Author Well, another day, another issue, sigh. Array went into parity sync after a clean reboot, took 15 hours or so, finished with no errors. This morning I woke up to another error: 01-08-2021 06:10 Unraid array errors Warning [NAS] - array has errors Array has 1 disk with read errors warning 01-08-2021 06:10 Unraid Disk 2 error Alert [NAS] - Disk 2 in error state (disk dsbl) ST6000DM003-2CY186_ZF2032KA (sde) alert I've attached the logs again. There is a new SATA controller on the way. This seems to be the relevant section: Aug 1 06:00:54 NAS emhttpd: read SMART /dev/sdd Aug 1 06:04:32 NAS kernel: ata6.00: exception Emask 0x0 SAct 0x10000 SErr 0x0 action 0x6 frozen Aug 1 06:04:32 NAS kernel: ata6.00: failed command: READ FPDMA QUEUED Aug 1 06:04:32 NAS kernel: ata6.00: cmd 60/08:80:b8:de:a4/00:00:9b:02:00/40 tag 16 ncq dma 4096 in Aug 1 06:04:32 NAS kernel: res 40/00:00:00:00:00/00:00:00:00:00/40 Emask 0x4 (timeout) Aug 1 06:04:32 NAS kernel: ata6.00: status: { DRDY } Aug 1 06:04:32 NAS kernel: ata6: hard resetting link Aug 1 06:04:42 NAS kernel: ata6: softreset failed (1st FIS failed) Aug 1 06:04:42 NAS kernel: ata6: hard resetting link Aug 1 06:04:52 NAS kernel: ata6: softreset failed (1st FIS failed) Aug 1 06:04:52 NAS kernel: ata6: hard resetting link ... Aug 1 06:05:27 NAS kernel: ata6: softreset failed (1st FIS failed) Aug 1 06:08:18 NAS kernel: ata6.00: disabled Aug 1 06:08:28 NAS kernel: ata6: softreset failed (1st FIS failed) ### [PREVIOUS LINE REPEATED 2 TIMES] ### Aug 1 06:09:19 NAS kernel: ata6: SATA link up 1.5 Gbps (SStatus 113 SControl 310) Aug 1 06:09:19 NAS kernel: ata6.00: link online but device misclassified Aug 1 06:09:19 NAS kernel: ata6: EH complete Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#31 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 cmd_age=307s Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#31 CDB: opcode=0x35 35 00 00 00 00 00 00 00 00 00 Aug 1 06:09:19 NAS kernel: blk_update_request: I/O error, dev sde, sector 0 op 0x1:(WRITE) flags 0x800 phys_seg 0 prio class 0 Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 cmd_age=0s Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#0 CDB: opcode=0x88 88 00 00 00 00 00 a1 68 6e b8 00 00 00 20 00 00 Aug 1 06:09:19 NAS kernel: blk_update_request: I/O error, dev sde, sector 2707975864 op 0x0:(READ) flags 0x0 phys_seg 4 prio class 0 Aug 1 06:09:19 NAS kernel: md: disk2 read error, sector=2707975800 Aug 1 06:09:19 NAS kernel: md: disk2 read error, sector=2707975808 Aug 1 06:09:19 NAS kernel: md: disk2 read error, sector=2707975816 Aug 1 06:09:19 NAS kernel: md: disk2 read error, sector=2707975824 Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#1 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 cmd_age=0s Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#1 CDB: opcode=0x88 88 00 00 00 00 02 84 01 28 98 00 00 00 20 00 00 Aug 1 06:09:19 NAS kernel: blk_update_request: I/O error, dev sde, sector 10804603032 op 0x0:(READ) flags 0x0 phys_seg 4 prio class 0 Aug 1 06:09:19 NAS kernel: md: disk2 read error, sector=10804602968 Aug 1 06:09:19 NAS kernel: md: disk2 read error, sector=10804602976 Aug 1 06:09:19 NAS kernel: md: disk2 read error, sector=10804602984 Aug 1 06:09:19 NAS kernel: md: disk2 read error, sector=10804602992 Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#2 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 cmd_age=0s Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#2 CDB: opcode=0x88 88 00 00 00 00 00 46 c7 18 80 00 00 00 08 00 00 Aug 1 06:09:19 NAS kernel: blk_update_request: I/O error, dev sde, sector 1187453056 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 Aug 1 06:09:19 NAS kernel: md: disk2 read error, sector=1187452992 Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#3 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 cmd_age=317s Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#3 CDB: opcode=0x88 88 00 00 00 00 02 9b a4 de b8 00 00 00 08 00 00 Aug 1 06:09:19 NAS kernel: blk_update_request: I/O error, dev sde, sector 11201207992 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 Aug 1 06:09:19 NAS kernel: md: disk2 read error, sector=11201207928 Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#4 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 cmd_age=0s Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#4 CDB: opcode=0x35 35 00 00 00 00 00 00 00 00 00 Aug 1 06:09:19 NAS kernel: blk_update_request: I/O error, dev sde, sector 0 op 0x1:(WRITE) flags 0x800 phys_seg 0 prio class 0 ### [PREVIOUS LINE REPEATED 4 TIMES] ### Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#18 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 cmd_age=0s Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#18 CDB: opcode=0x8a 8a 00 00 00 00 01 80 39 4b 90 00 00 00 08 00 00 Aug 1 06:09:19 NAS kernel: md: disk2 write error, sector=6446205776 Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#19 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 cmd_age=0s Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#19 CDB: opcode=0x88 88 00 00 00 00 01 80 39 4b d0 00 00 00 08 00 00 Aug 1 06:09:19 NAS kernel: md: disk2 read error, sector=6446205840 Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#21 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 cmd_age=0s Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#21 CDB: opcode=0x8a 8a 00 00 00 00 01 80 39 4b 98 00 00 00 08 00 00 Aug 1 06:09:19 NAS kernel: md: disk2 write error, sector=6446205784 Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#22 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 cmd_age=0s Aug 1 06:09:19 NAS kernel: sd 6:0:0:0: [sde] tag#22 CDB: opcode=0x8a 8a 00 00 00 00 01 80 39 4b a0 00 00 00 08 00 00 Aug 1 06:09:19 NAS kernel: md: disk2 write error, sector=6446205792 Aug 1 06:09:19 NAS kernel: md: disk2 write error, sector=6446205800 Aug 1 06:09:19 NAS kernel: md: disk2 write error, sector=6446205808 Aug 1 06:09:19 NAS kernel: md: disk2 write error, sector=6446205816 ... Aug 1 06:09:19 NAS kernel: md: disk2 write error, sector=10804602976 Aug 1 06:09:19 NAS kernel: md: disk2 write error, sector=10804602984 Aug 1 06:09:19 NAS kernel: md: disk2 write error, sector=10804602992 Aug 1 06:09:19 NAS kernel: md: disk2 write error, sector=11201207928 Is this again related to the controller, or is this a genuine disk error (disk is somewhat old)? nas-diagnostics-20210801-1051.zip
August 1, 20213 yr Community Expert Possibly a connection/power problem on that disk, but could also be related to the previous issue.
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