EXT3-fs I/O error on dm-4

[ttist25]

Hi guys!

I'm getting some I/O errors in my syslog on device "dm-4" and I'm not sure if it's symptomatic of a bad disk or if I've just got a stale backup or what. After reading through some related forum posts here are some outputs that might be helpful (I highlighted anything related to dm-4 in red bold):


Determining what dm-4 is:

---

root@proxvs2>lvdisplay|awk '/LV Name/{n=$3} /Block device/{d=$3; sub(".*:","dm-",d); print d,n;}'
/dev/pve/vzsnap-proxvs2-0: read failed after 0 of 4096 at 1610960797696: Input/output error
/dev/pve/vzsnap-proxvs2-0: read failed after 0 of 4096 at 1610960855040: Input/output error
/dev/pve/vzsnap-proxvs2-0: read failed after 0 of 4096 at 0: Input/output error
/dev/pve/vzsnap-proxvs2-0: read failed after 0 of 4096 at 4096: Input/output error
dm-1 lvstuff
dm-2 swap
dm-0 root
dm-3 data
dm-4 vzsnap-proxvs2-0


lvs:

---

root@proxvs2 ~ 12:20 PM >lvs
/dev/pve/vzsnap-proxvs2-0: read failed after 0 of 4096 at 1610960797696: Input/output error
/dev/pve/vzsnap-proxvs2-0: read failed after 0 of 4096 at 1610960855040: Input/output error
/dev/pve/vzsnap-proxvs2-0: read failed after 0 of 4096 at 0: Input/output error
/dev/pve/vzsnap-proxvs2-0: read failed after 0 of 4096 at 4096: Input/output error
LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert
data pve owi-aos- 1.47t
root pve -wi-ao-- 96.00g
swap pve -wi-ao-- 230.38g
vzsnap-proxvs2-0 pve Swi-Ios- 6.00g data 100.00
lvstuff vgpool -wi-ao-- 1.76t


lvdisplay:

---

root@proxvs2 ~ 12:20 PM >lvdisplay
/dev/pve/vzsnap-proxvs2-0: read failed after 0 of 4096 at 1610960797696: Input/output error
/dev/pve/vzsnap-proxvs2-0: read failed after 0 of 4096 at 1610960855040: Input/output error
/dev/pve/vzsnap-proxvs2-0: read failed after 0 of 4096 at 0: Input/output error
/dev/pve/vzsnap-proxvs2-0: read failed after 0 of 4096 at 4096: Input/output error
--- Logical volume ---
LV Path /dev/vgpool/lvstuff
LV Name lvstuff
VG Name vgpool
LV UUID HHLqDi-sfpg-vQ11-fAdz-ZF2j-9jmY-Biqd1J
LV Write Access read/write
LV Creation host, time proxvs2, 2013-05-26 17:27:05 -0400
LV Status available
# open 1
LV Size 1.76 TiB
Current LE 460800
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:1


--- Logical volume ---
LV Path /dev/pve/swap
LV Name swap
VG Name pve
LV UUID nUF1Bf-cE7R-89qn-0ads-e84p-dLyj-eIFXAl
LV Write Access read/write
LV Creation host, time proxmox, 2013-05-22 07:26:04 -0400
LV Status available
# open 1
LV Size 230.38 GiB
Current LE 58976
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:2


--- Logical volume ---
LV Path /dev/pve/root
LV Name root
VG Name pve
LV UUID 47lLv2-gZpb-dz6O-6VCv-IgQq-3kdQ-TRrSvg
LV Write Access read/write
LV Creation host, time proxmox, 2013-05-22 07:26:05 -0400
LV Status available
# open 1
LV Size 96.00 GiB
Current LE 24576
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0


--- Logical volume ---
LV Path /dev/pve/data
LV Name data
VG Name pve
LV UUID 8aV9A6-D7zr-5ZWS-roa6-vtAf-VF0O-fdYjys
LV Write Access read/write
LV Creation host, time proxmox, 2013-05-22 07:26:05 -0400
LV snapshot status source of
vzsnap-proxvs2-0 [INACTIVE]
LV Status available
# open 1
LV Size 1.47 TiB
Current LE 384083
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:3


--- Logical volume ---
LV Path /dev/pve/vzsnap-proxvs2-0
LV Name vzsnap-proxvs2-0
VG Name pve
LV UUID lX3QhO-gyz9-3kcd-e3if-aZam-4daF-IYoOWv
LV Write Access read/write
LV Creation host, time proxvs2, 2014-10-20 02:50:04 -0400
LV snapshot status INACTIVE destination for data
LV Status available
# open 1
LV Size 1.47 TiB
Current LE 384083
COW-table size 6.00 GiB
COW-table LE 1536
Snapshot chunk size 4.00 KiB
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:4



Any thoughts on what this all means? What is "vzsnap-proxvs2-0"? If there's any other information I can provide please just let me know.

Thanks!

 

[ttist25]

Nothing?