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Předem upozorňuji, že si jsem vědom toho, že je tam již starší jádro 6.1.0-0-amd64 (Debian 12.2.0-9). Jak si lze povšimnout z výpisu na stroji, je vidět, že všechny uuid zná, jenom ho ten správný zřejmě nemá tam, kde ho prioritně hledá. No tak se koukněme co vidí:

~ # blk
blkdiscard  blkid
~ # blkid 
/dev/sdf1: LABEL="main" UUID="10000000-0000-0000-0000-000000000000" UUID_SUB="7996bbee-83ee-4e14-9394-c02530ed1865" BLOCK_SIZE="4096" TYPE="btrfs" PTTYPE="dos" PARTUUID="2edaebd2-01"
/dev/sdd1: LABEL="system" UUID="95ab0eec-4930-4400-8d89-4c24d6aa8f28" UUID_SUB="ce3e665d-2e9f-4992-98ea-a0bfeb949585" BLOCK_SIZE="4096" TYPE="btrfs" PARTUUID="0fd0cd04-01"
/dev/sdb1: LABEL="main" UUID="10000000-0000-0000-0000-000000000000" UUID_SUB="4b381c41-a01d-4caa-8ca5-de50c0675ef0" BLOCK_SIZE="4096" TYPE="btrfs" PARTLABEL="Linux filesystem" PARTUUID="68920fba-6f75-4924-ac67-64488e5a0bc7"
/dev/sdk1: LABEL="main" UUID="10000000-0000-0000-0000-000000000000" UUID_SUB="aede2eaf-96bd-4db3-9b93-d48517344063" BLOCK_SIZE="4096" TYPE="btrfs" PARTUUID="51a3f8d0-01"
/dev/sdi1: LABEL="main" UUID="10000000-0000-0000-0000-000000000000" UUID_SUB="7d036131-1c44-4b91-97a5-1f4d87acd908" BLOCK_SIZE="4096" TYPE="btrfs" PARTUUID="7956c4ca-01"
/dev/sdg1: LABEL="main" UUID="10000000-0000-0000-0000-000000000000" UUID_SUB="765caf91-52e8-4aea-85f5-e03d68816dcd" BLOCK_SIZE="4096" TYPE="btrfs" PTTYPE="dos" PARTUUID="48190a45-01"
/dev/sde1: LABEL="system" UUID="95ab0eec-4930-4400-8d89-4c24d6aa8f28" UUID_SUB="508e10b8-eaa9-4d5e-b37e-3c5433ef9305" BLOCK_SIZE="4096" TYPE="btrfs" PARTUUID="a76574ef-01"
/dev/sdc1: LABEL="main" UUID="10000000-0000-0000-0000-000000000000" UUID_SUB="c6dd2fe6-9da0-4955-b641-d7d6d3b3de67" BLOCK_SIZE="4096" TYPE="btrfs" PARTLABEL="Linux filesystem" PARTUUID="7ea3eea8-69c1-4c7c-92e9-cc1fb697de51"
/dev/sdl1: LABEL="main" UUID="10000000-0000-0000-0000-000000000000" UUID_SUB="f2ccaaba-202b-4ab1-83d3-d8fe599d056a" BLOCK_SIZE="4096" TYPE="btrfs" PARTLABEL="Linux filesystem" PARTUUID="5ef5c05a-01e6-4256-b676-8c9ccbba8c58"
/dev/sda1: LABEL="main" UUID="10000000-0000-0000-0000-000000000000" UUID_SUB="ed84105a-b5e7-4d5a-bd67-be09650e0a65" BLOCK_SIZE="4096" TYPE="btrfs" PARTLABEL="Linux filesystem" PARTUUID="efe48970-5db3-4409-b466-b5894a2bc3ff"
/dev/sdj1: LABEL="main" UUID="10000000-0000-0000-0000-000000000000" UUID_SUB="c5c5174d-31ea-4478-9111-d5f4f882a3cc" BLOCK_SIZE="4096" TYPE="btrfs" PARTUUID="06e4ad3e-01"
/dev/sdh1: LABEL="main" UUID="10000000-0000-0000-0000-000000000000" UUID_SUB="da92ffb2-a1d8-419d-aad0-5fef997b49c0" BLOCK_SIZE="4096" TYPE="btrfs" PARTUUID="ca9d1096-01"
~ # btrfs fi show
Label: 'main'  uuid: 10000000-0000-0000-0000-000000000000
        Total devices 10 FS bytes used 7.04TiB
        devid    1 size 1.82TiB used 1.40TiB path /dev/sdf1
        devid    2 size 1.82TiB used 1.38TiB path /dev/sdg1
        devid    8 size 1.82TiB used 1.16TiB path /dev/sdl1
        devid    9 size 1.82TiB used 1.34TiB path /dev/sdc1
        devid   10 size 1.82TiB used 1.29TiB path /dev/sdk1
        devid   11 size 1.82TiB used 1.40TiB path /dev/sdj1
        devid   12 size 1.82TiB used 1.40TiB path /dev/sdh1
        devid   13 size 1.82TiB used 1.38TiB path /dev/sdi1
        devid   16 size 7.28TiB used 1.90TiB path /dev/sdb1
        devid   17 size 7.28TiB used 1.44TiB path /dev/sda1

Label: 'system'  uuid: 95ab0eec-4930-4400-8d89-4c24d6aa8f28
        Total devices 2 FS bytes used 55.60GiB
        devid    6 size 232.88GiB used 57.03GiB path /dev/sdd1
        devid    7 size 232.88GiB used 57.03GiB path /dev/sde1

~ # mount LABEL=system /root -o subvol=root
mount: mounting /dev/sdd1 on /root failed: Invalid argument
~ # mount UUID=95ab0eec-4930-4400-8d89-4c24d6aa8f28 /root -o subvol=root
mount: mounting /dev/sdd1 on /root failed: Invalid argument
~ # mount /dev/sdd1 /root -o subvol=root
mount: mounting /dev/sdd1 on /root failed: Invalid argument
~ # mount /dev/sde1 /root -o subvol=root
~ # btrfs device stats /root
[/dev/sdd1].write_io_errs    0
[/dev/sdd1].read_io_errs     0
[/dev/sdd1].flush_io_errs    0
[/dev/sdd1].corruption_errs  0
[/dev/sdd1].generation_errs  0
[/dev/sde1].write_io_errs    0
[/dev/sde1].read_io_errs     0
[/dev/sde1].flush_io_errs    0
[/dev/sde1].corruption_errs  0
[/dev/sde1].generation_errs  0
~ # btrfs device usage /root
/dev/sdd1, ID: 6
   Device size:           232.88GiB
   Device slack:              0.00B
   Data,RAID1:             55.00GiB
   Metadata,RAID1:          2.00GiB
   System,RAID1:           32.00MiB
   Unallocated:           175.85GiB

/dev/sde1, ID: 7
   Device size:           232.88GiB
   Device slack:              0.00B
   Data,RAID1:             55.00GiB
   Metadata,RAID1:          2.00GiB
   System,RAID1:           32.00MiB
   Unallocated:           175.85GiB

~ # btrfs fi usage /root
Overall:
    Device size:                 465.77GiB
    Device allocated:            114.06GiB
    Device unallocated:          351.71GiB
    Device missing:                  0.00B
    Device slack:                    0.00B
    Used:                        111.21GiB
    Free (estimated):            176.27GiB      (min: 176.27GiB)
    Free (statfs, df):           176.27GiB
    Data ratio:                       2.00
    Metadata ratio:                   2.00
    Global reserve:              112.09MiB      (used: 0.00B)
    Multiple profiles:                  no

Data,RAID1: Size:55.00GiB, Used:54.58GiB (99.25%)
   /dev/sdd1      55.00GiB
   /dev/sde1      55.00GiB

Metadata,RAID1: Size:2.00GiB, Used:1.02GiB (50.96%)
   /dev/sdd1       2.00GiB
   /dev/sde1       2.00GiB

System,RAID1: Size:32.00MiB, Used:16.00KiB (0.05%)
   /dev/sdd1      32.00MiB
   /dev/sde1      32.00MiB

Unallocated:
   /dev/sdd1     175.85GiB
   /dev/sde1     175.85GiB
~ # btrfs scrub start /root
scrub started on /root, fsid 95ab0eec-4930-4400-8d89-4c24d6aa8f28 (pid=410)
~ # btrfs scrub status /root
UUID:             95ab0eec-4930-4400-8d89-4c24d6aa8f28
Scrub started:    Sun Jan 14 10:57:13 2024
Status:           running
Duration:         0:00:30
Time left:        0:02:23
ETA:              Sun Jan 14 11:00:10 2024
Total to scrub:   111.21GiB
Bytes scrubbed:   19.27GiB  (17.33%)
Rate:             657.80MiB/s
Error summary:    no errors found
~ # btrfs scrub status /root
UUID:             95ab0eec-4930-4400-8d89-4c24d6aa8f28
Scrub started:    Sun Jan 14 10:57:13 2024
Status:           finished
Duration:         0:03:31
Total to scrub:   111.21GiB
Rate:             539.70MiB/s
Error summary:    no errors found
~ # df -h
Filesystem                Size      Used Available Use% Mounted on
udev                      3.8G         0      3.8G   0% /dev
tmpfs                   794.8M    172.0K    794.6M   0% /run
/dev/sdd1               232.9G     55.7G    176.3G  24% /root

Jak si můžeš povšimnout, mount to tvrdošíjně zkouší přes UUID_SUB disku, který má v tuto chvíli označení /dev/sde, ale ve výpisu btrfs je vidět že by vyšší prioritu by mělo mít zařízení /dev/sdd. Takže to hledá asi někde jinde a jinak než by měl.

Také si všimni, že v režimu RAID1 jsou všechny bloky, tedy nejenom Data a Metadata, ale i System.

Jak vidíš, to pole není ani extra zaplněné. Obsazeno má pouhých 24%. A zcela na závěr jsem na to pustil scrub.

A také přihodím něco ze smartctl. Jak vidíš jsou to dva, relativně nové SSD disky – kdo si pozorně přečetl předchozí výpisy, tak si nepochybně všimnul automaticky přidaného atributu 'ssd' ve výpisu co vrací mount.

spike (SCHROT) :~# smartctl --all /dev/sdd1
smartctl 7.3 2022-02-28 r5338 [x86_64-linux-6.1.0-0-amd64] (local build)
Copyright (C) 2002-22, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Samsung based SSDs
Device Model:     Samsung SSD 870 EVO 250GB
Serial Number:    S6PENL0T816723E
LU WWN Device Id: 5 002538 f5280e33c
Firmware Version: SVT02B6Q
User Capacity:    250 059 350 016 bytes [250 GB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
Form Factor:      2.5 inches
TRIM Command:     Available, deterministic, zeroed
Device is:        In smartctl database 7.3/5319
ATA Version is:   ACS-4 T13/BSR INCITS 529 revision 5
SATA Version is:  SATA 3.3, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is:    Sun Jan 14 12:09:19 2024 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

...

SMART Attributes Data Structure revision number: 1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  9 Power_On_Hours          0x0032   099   099   000    Old_age   Always       -       97
 12 Power_Cycle_Count       0x0032   099   099   000    Old_age   Always       -       20
177 Wear_Leveling_Count     0x0013   099   099   000    Pre-fail  Always       -       1
179 Used_Rsvd_Blk_Cnt_Tot   0x0013   100   100   010    Pre-fail  Always       -       0
181 Program_Fail_Cnt_Total  0x0032   100   100   010    Old_age   Always       -       0
182 Erase_Fail_Count_Total  0x0032   100   100   010    Old_age   Always       -       0
183 Runtime_Bad_Block       0x0013   100   100   010    Pre-fail  Always       -       0
187 Uncorrectable_Error_Cnt 0x0032   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0032   078   061   000    Old_age   Always       -       22
195 ECC_Error_Rate          0x001a   200   200   000    Old_age   Always       -       0
199 CRC_Error_Count         0x003e   099   099   000    Old_age   Always       -       80
235 POR_Recovery_Count      0x0012   099   099   000    Old_age   Always       -       7
241 Total_LBAs_Written      0x0032   099   099   000    Old_age   Always       -       502287976
252 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       -       0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed without error       00%        11         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
  256        0    65535  Read_scanning was never started

...

spike (SCHROT) :~# smartctl --all /dev/sde1
smartctl 7.3 2022-02-28 r5338 [x86_64-linux-6.1.0-0-amd64] (local build)
Copyright (C) 2002-22, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Samsung based SSDs
Device Model:     Samsung SSD 870 EVO 250GB
Serial Number:    S6PENL0T816709H
LU WWN Device Id: 5 002538 f5280e32e
Firmware Version: SVT02B6Q
User Capacity:    250 059 350 016 bytes [250 GB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
Form Factor:      2.5 inches
TRIM Command:     Available, deterministic, zeroed
Device is:        In smartctl database 7.3/5319
ATA Version is:   ACS-4 T13/BSR INCITS 529 revision 5
SATA Version is:  SATA 3.3, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is:    Sun Jan 14 12:09:24 2024 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

...

SMART Attributes Data Structure revision number: 1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  9 Power_On_Hours          0x0032   099   099   000    Old_age   Always       -       97
 12 Power_Cycle_Count       0x0032   099   099   000    Old_age   Always       -       20
177 Wear_Leveling_Count     0x0013   099   099   000    Pre-fail  Always       -       1
179 Used_Rsvd_Blk_Cnt_Tot   0x0013   100   100   010    Pre-fail  Always       -       0
181 Program_Fail_Cnt_Total  0x0032   100   100   010    Old_age   Always       -       0
182 Erase_Fail_Count_Total  0x0032   100   100   010    Old_age   Always       -       0
183 Runtime_Bad_Block       0x0013   100   100   010    Pre-fail  Always       -       0
187 Uncorrectable_Error_Cnt 0x0032   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0032   078   059   000    Old_age   Always       -       22
195 ECC_Error_Rate          0x001a   200   200   000    Old_age   Always       -       0
199 CRC_Error_Count         0x003e   099   099   000    Old_age   Always       -       84
235 POR_Recovery_Count      0x0012   099   099   000    Old_age   Always       -       6
241 Total_LBAs_Written      0x0032   099   099   000    Old_age   Always       -       491889128
252 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       -       1

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed without error       00%        11         -
# 2  Extended offline    Aborted by host               90%         3         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
  256        0    65535  Read_scanning was never started

...

A protože mám už nastavené i to logování po síti, máš tady vše co v průběhu předchozích operací vyzvracel co syslogu. Včetněn těch DRDY chyb, o kterých už vím, že za nimi věcí SATA kabely.

[    2.461078] ata7.00: 3907029168 sectors, multi 0: LBA48 NCQ (depth 32), AA
[    2.461427] ata8.00: 3907029168 sectors, multi 0: LBA48 NCQ (depth 32), AA
[    8.579436] 
[    8.579532] 
[    8.579641] 
[    8.579748] 
[    8.580044] 
[    8.580309] 
[    8.580442] 
[    8.580554] 
[    8.594833] 
[    8.594967] 
[    8.718017] raid6: sse2x4   gen()  8360 MB/s
[    8.786015] raid6: sse2x2   gen()  8057 MB/s
[    8.854015] raid6: sse2x1   gen()  6559 MB/s
[    8.854089] raid6: using algorithm sse2x4 gen() 8360 MB/s
[    8.922019] raid6: .... xor() 2424 MB/s, rmw enabled
[    8.922092] raid6: using intx1 recovery algorithm
[    8.923171] xor: measuring software checksum speed
[    8.923962]    prefetch64-sse  : 13712 MB/sec
[    8.924797]    generic_sse     : 12894 MB/sec
[    8.924868] xor: using function: prefetch64-sse (13712 MB/sec)
[    8.925737] async_tx: api initialized (async)
[    9.504339] Btrfs loaded, crc32c=crc32c-generic, zoned=yes, fsverity=yes
[    9.505331] BTRFS: device label system devid 6 transid 71812 /dev/sdd1 scanned by mount (252)
[    9.506175] BTRFS info (device sdd1): using crc32c (crc32c-generic) checksum algorithm
[    9.506268] BTRFS info (device sdd1): disk space caching is enabled
[    9.506867] BTRFS error (device sdd1): devid 7 uuid 508e10b8-eaa9-4d5e-b37e-3c5433ef9305 is missing
[    9.506943] BTRFS error (device sdd1): failed to read the system array: 1611046443
[    9.507265] BTRFS error (device sdd1): open_ctree failed
[   48.687444] [278] Jan 14 10:23:18 Child connection from 192.168.0.109:35880
[   48.688804] [278] Jan 14 10:23:18 Failed loading /etc/dropbear/dropbear_dss_host_key
[   48.688941] [278] Jan 14 10:23:18 Failed loading /etc/dropbear/dropbear_ed25519_host_key
[   48.764236] [278] Jan 14 10:23:18 Pubkey auth succeeded for 'root' with ssh-rsa key SHA256:2Dj1v+y6A8pvsxn0YPWRrcNFZhM4gcMQyfPWoznZpP0 from 192.168.0.109:35880
[   48.766311] [279] Jan 14 10:23:18 lastlog_perform_login: Couldn't stat /var/log/lastlog: No such file or directory
[   48.766434] [279] Jan 14 10:23:18 lastlog_openseek: /var/log/lastlog is not a file or directory!
[  597.896883] [302] Jan 14 10:32:28 Child connection from 176.65.145.210:53129
[  597.898291] [302] Jan 14 10:32:28 Failed loading /etc/dropbear/dropbear_dss_host_key
[  597.898455] [302] Jan 14 10:32:28 Failed loading /etc/dropbear/dropbear_ed25519_host_key
[  608.004924] [302] Jan 14 10:32:38 Exit before auth from <176.65.145.210:53129>: Exited normally
[  728.995993] BTRFS info (device sdd1): using crc32c (crc32c-generic) checksum algorithm
[  728.996109] BTRFS info (device sdd1): disk space caching is enabled
[  728.996602] BTRFS error (device sdd1): devid 7 uuid 508e10b8-eaa9-4d5e-b37e-3c5433ef9305 is missing
[  728.996706] BTRFS error (device sdd1): failed to read the system array: -1347562325
[  728.997064] BTRFS error (device sdd1): open_ctree failed
[ 1179.289718] BTRFS info (device sdd1): using crc32c (crc32c-generic) checksum algorithm
[ 1179.289834] BTRFS info (device sdd1): disk space caching is enabled
[ 1179.290356] BTRFS error (device sdd1): devid 7 uuid 508e10b8-eaa9-4d5e-b37e-3c5433ef9305 is missing
[ 1179.290456] BTRFS error (device sdd1): failed to read the system array: -1097625749
[ 1179.290803] BTRFS error (device sdd1): open_ctree failed
[ 1220.304528] BTRFS info (device sdd1): using crc32c (crc32c-generic) checksum algorithm
[ 1220.304659] BTRFS info (device sdd1): disk space caching is enabled
[ 1220.305198] BTRFS error (device sdd1): devid 7 uuid 508e10b8-eaa9-4d5e-b37e-3c5433ef9305 is missing
[ 1220.305297] BTRFS error (device sdd1): failed to read the system array: -1356172437
[ 1220.305650] BTRFS error (device sdd1): open_ctree failed
[ 1237.118467] BTRFS: device label system devid 7 transid 71812 /dev/sde1 scanned by mount (381)
[ 1237.123471] BTRFS info (device sdd1): using crc32c (crc32c-generic) checksum algorithm
[ 1237.123602] BTRFS info (device sdd1): disk space caching is enabled
[ 1237.146114] BTRFS info (device sdd1): enabling ssd optimizations
[ 2055.447996] [408] Jan 14 10:56:45 Child connection from 194.165.16.72:65321
[ 2055.449359] [408] Jan 14 10:56:45 Failed loading /etc/dropbear/dropbear_dss_host_key
[ 2055.449521] [408] Jan 14 10:56:45 Failed loading /etc/dropbear/dropbear_ed25519_host_key
[ 2055.450831] [408] Jan 14 10:56:45 Exit before auth from <194.165.16.72:65321>: Exited normally
[ 2083.378659] BTRFS info (device sdd1): scrub: started on devid 7
[ 2083.382451] BTRFS info (device sdd1): scrub: started on devid 6
[ 2084.509933] ata5.00: exception Emask 0x12 SAct 0x0 SErr 0x500 action 0x6 frozen
[ 2084.510037] ata5.00: irq_stat 0x08000000, interface fatal error
[ 2084.510124] ata5: SError: { UnrecovData Proto }
[ 2084.510213] ata5.00: failed command: READ DMA EXT
[ 2084.510291] ata5.00: cmd 25/00:00:80:74:0c/00:06:00:00:00/e0 tag 8 dma 786432 in
[ 2084.510291]          res 50/00:00:7f:74:0c/00:00:00:00:00/e0 Emask 0x12 (ATA bus error)
[ 2084.510435] ata5.00: status: { DRDY }
[ 2084.510529] ata5: hard resetting link
[ 2084.985967] ata5: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 2084.986339] ata5.00: supports DRM functions and may not be fully accessible
[ 2084.989079] ata5.00: supports DRM functions and may not be fully accessible
[ 2084.991661] ata5.00: configured for UDMA/133
[ 2084.991778] ata5: EH complete
[ 2085.013811] ata5.00: Enabling discard_zeroes_data
[ 2114.493927] ata6.00: exception Emask 0x10 SAct 0x0 SErr 0x400000 action 0x6 frozen
[ 2114.494032] ata6.00: irq_stat 0x08000000, interface fatal error
[ 2114.494117] ata6: SError: { Handshk }
[ 2114.494206] ata6.00: failed command: WRITE DMA EXT
[ 2114.494283] ata6.00: cmd 35/00:00:90:c0:6d/00:02:06:00:00/e0 tag 23 dma 262144 out
[ 2114.494283]          res 50/00:00:cf:31:3e/00:00:01:00:00/e0 Emask 0x10 (ATA bus error)
[ 2114.494427] ata6.00: status: { DRDY }
[ 2114.494520] ata6: hard resetting link
[ 2114.494609] ata5.00: exception Emask 0x10 SAct 0x0 SErr 0x400001 action 0x6 frozen
[ 2114.494715] ata5.00: irq_stat 0x08000000, interface fatal error
[ 2114.494793] ata5: SError: { RecovData Handshk }
[ 2114.494871] ata5.00: failed command: WRITE DMA EXT
[ 2114.494947] ata5.00: cmd 35/00:00:90:c0:cc/00:02:03:00:00/e0 tag 11 dma 262144 out
[ 2114.494947]          res 50/00:00:3f:27:82/00:00:00:00:00/e6 Emask 0x10 (ATA bus error)
[ 2114.495085] ata5.00: status: { DRDY }
[ 2114.495162] ata5: hard resetting link
[ 2114.969934] ata5: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 2114.970055] ata6: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 2114.970283] ata5.00: supports DRM functions and may not be fully accessible
[ 2114.970434] ata6.00: supports DRM functions and may not be fully accessible
[ 2114.973034] ata5.00: supports DRM functions and may not be fully accessible
[ 2114.973179] ata6.00: supports DRM functions and may not be fully accessible
[ 2114.975608] ata5.00: configured for UDMA/133
[ 2114.975721] ata5: EH complete
[ 2114.975828] ata6.00: configured for UDMA/133
[ 2114.975931] ata6: EH complete
[ 2114.989939] ata5.00: exception Emask 0x10 SAct 0x0 SErr 0x400000 action 0x6 frozen
[ 2114.990042] ata5.00: irq_stat 0x08000000, interface fatal error
[ 2114.990120] ata5: SError: { Handshk }
[ 2114.990200] ata5.00: failed command: WRITE DMA EXT
[ 2114.990280] ata5.00: cmd 35/00:00:90:c0:cc/00:02:03:00:00/e0 tag 28 dma 262144 out
[ 2114.990280]          res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x10 (ATA bus error)
[ 2114.990421] ata5.00: status: { DRDY }
[ 2114.990502] ata5: hard resetting link
[ 2114.990601] ata6.00: exception Emask 0x10 SAct 0x0 SErr 0x400000 action 0x6 frozen
[ 2114.990705] ata6.00: irq_stat 0x08000000, interface fatal error
[ 2114.990790] ata6: SError: { Handshk }
[ 2114.990872] ata6.00: failed command: WRITE DMA EXT
[ 2114.990956] ata6.00: cmd 35/00:00:90:c0:6d/00:02:06:00:00/e0 tag 25 dma 262144 out
[ 2114.990956]          res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x10 (ATA bus error)
[ 2114.991098] ata6.00: status: { DRDY }
[ 2114.991191] ata6: hard resetting link
[ 2115.465923] ata5: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 2115.466043] ata6: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 2115.466268] ata5.00: supports DRM functions and may not be fully accessible
[ 2115.466418] ata6.00: supports DRM functions and may not be fully accessible
[ 2115.469005] ata5.00: supports DRM functions and may not be fully accessible
[ 2115.469154] ata6.00: supports DRM functions and may not be fully accessible
[ 2115.471634] ata5.00: configured for UDMA/133
[ 2115.471738] ata5: EH complete
[ 2115.471855] ata6.00: configured for UDMA/133
[ 2115.471972] ata6: EH complete
[ 2115.485929] ata5: limiting SATA link speed to 3.0 Gbps
[ 2115.486016] ata5.00: exception Emask 0x10 SAct 0x0 SErr 0x400000 action 0x6 frozen
[ 2115.486111] ata5.00: irq_stat 0x08000000, interface fatal error
[ 2115.486192] ata5: SError: { Handshk }
[ 2115.486271] ata5.00: failed command: WRITE DMA EXT
[ 2115.486351] ata5.00: cmd 35/00:00:90:c0:cc/00:02:03:00:00/e0 tag 13 dma 262144 out
[ 2115.486351]          res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x10 (ATA bus error)
[ 2115.486490] ata5.00: status: { DRDY }
[ 2115.486570] ata5: hard resetting link
[ 2115.486671] ata6.00: exception Emask 0x10 SAct 0x0 SErr 0x400000 action 0x6 frozen
[ 2115.486774] ata6.00: irq_stat 0x08000000, interface fatal error
[ 2115.486859] ata6: SError: { Handshk }
[ 2115.486941] ata6.00: failed command: WRITE DMA EXT
[ 2115.487024] ata6.00: cmd 35/00:00:90:c0:6d/00:02:06:00:00/e0 tag 7 dma 262144 out
[ 2115.487024]          res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x10 (ATA bus error)
[ 2115.487167] ata6.00: status: { DRDY }
[ 2115.487260] ata6: hard resetting link
[ 2115.961923] ata5: SATA link up 3.0 Gbps (SStatus 123 SControl 320)
[ 2115.962044] ata6: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 2115.962272] ata5.00: supports DRM functions and may not be fully accessible
[ 2115.962421] ata6.00: supports DRM functions and may not be fully accessible
[ 2115.965038] ata5.00: supports DRM functions and may not be fully accessible
[ 2115.965186] ata6.00: supports DRM functions and may not be fully accessible
[ 2115.967699] ata5.00: configured for UDMA/133
[ 2115.967797] ata5: EH complete
[ 2115.967878] ata6.00: configured for UDMA/133
[ 2115.967994] ata6: EH complete
[ 2115.974050] ata5.00: Enabling discard_zeroes_data
[ 2115.985920] ata6: limiting SATA link speed to 3.0 Gbps
[ 2115.986006] ata6.00: exception Emask 0x10 SAct 0x0 SErr 0x400000 action 0x6 frozen
[ 2115.986109] ata6.00: irq_stat 0x08000000, interface fatal error
[ 2115.986193] ata6: SError: { Handshk }
[ 2115.986275] ata6.00: failed command: WRITE DMA EXT
[ 2115.986357] ata6.00: cmd 35/00:00:90:c0:6d/00:02:06:00:00/e0 tag 9 dma 262144 out
[ 2115.986357]          res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x10 (ATA bus error)
[ 2115.986500] ata6.00: status: { DRDY }
[ 2115.986593] ata6: hard resetting link
[ 2115.994117] ata5.00: Enabling discard_zeroes_data
[ 2116.461935] ata6: SATA link up 3.0 Gbps (SStatus 123 SControl 320)
[ 2116.462306] ata6.00: supports DRM functions and may not be fully accessible
[ 2116.465137] ata6.00: supports DRM functions and may not be fully accessible
[ 2116.467830] ata6.00: configured for UDMA/133
[ 2116.467935] ata6: EH complete
[ 2116.472491] ata6.00: Enabling discard_zeroes_data
[ 2116.491253] ata6.00: Enabling discard_zeroes_data
[ 2294.578891] BTRFS info (device sdd1): scrub: finished on devid 7 with status: 0
[ 2294.578892] BTRFS info (device sdd1): scrub: finished on devid 6 with status: 0
[ 2705.555080] Killed
[ 2705.555235] 
[ 2705.555330] 
[ 2705.555436] 
[ 2705.555532] 
[ 2705.555603] done.
[ 2705.555710] 
[ 2705.555824] 
[ 2705.555912] 
[ 2705.556016] 
[ 2734.310669] r8169 0000:07:00.0 eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[ 2734.310837] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 2747.762453] systemd-journald[502]: Successfully sent stream file descriptor to service manager.
[ 2814.343770] systemd-journald[502]: Sent WATCHDOG=1 notification.
[ 2924.344882] systemd-journald[502]: Sent WATCHDOG=1 notification.
[ 2994.345867] systemd-journald[502]: Sent WATCHDOG=1 notification.

Tak. Teď si představ, že by ty disky byly ještě šifrované. To by bylo peklo na druhou, protože ten komp nemá žádnou klávesnici. Jenom ethernetový drát a malý monitor na hdmi, abych viděl, co se zrovna děje. Důvod je prozaický. U klávesnice jsem si při nedávném úklidu vysál 'enter', což je poměrně dosti významná klávesa, takže skončila v elektroodpadu. A navíc mám podezření že u té desky odchází USB subsystém, protože jádro mělo při použití klávesnice tendenci panikařit. Konečné řešení jsem odkládal až na přechod na novější HW, ale když už jste mě vyprovokovali, můžete se vytasit s vlastními myšlenkovými pochody.

Konkrétně mne zajímá, kde je zakopaný pes podle Andreje, protože vím (jak už jsem napsal pod nickem Want) že má s Btrfs opravdu dlouholeté zkušenosti.