I/O Errors during lvscan "kernel: Buffer I/O error on device dm-XX, logical block XX"
(Doc ID 2299951.1)
Last updated on MAY 20, 2020
Applies to:
Linux OS - Version Oracle Linux 6.6 and laterOracle Cloud Infrastructure - Version N/A and later
Linux x86-64
Goal
The following errors are shown in /var/log/messages:
kernel: Buffer I/O error on device dm-xx, logical block 1
kernel: Buffer I/O error on device dm-xx, logical block 2
kernel: Buffer I/O error on device dm-xx, logical block 6291440
kernel: Buffer I/O error on device dm-xx, logical block 6291440
kernel: Buffer I/O error on device dm-xx, logical block 6291454
kernel: Buffer I/O error on device dm-xx, logical block 6291454
kernel: Buffer I/O error on device dm-xx, logical block 0
kernel: Buffer I/O error on device dm-xx, logical block 0
kernel: Buffer I/O error on device dm-xx, logical block 1
kernel: Buffer I/O error on device dm-xx, logical block 6291455
kernel: Buffer I/O error on device dm-xx, logical block 6291455
kernel: Buffer I/O error on device dm-xx, logical block 6291455
kernel: Buffer I/O error on device dm-xx, logical block 2
kernel: Buffer I/O error on device dm-xx, logical block 6291440
kernel: Buffer I/O error on device dm-xx, logical block 6291440
kernel: Buffer I/O error on device dm-xx, logical block 6291454
kernel: Buffer I/O error on device dm-xx, logical block 6291454
kernel: Buffer I/O error on device dm-xx, logical block 0
kernel: Buffer I/O error on device dm-xx, logical block 0
kernel: Buffer I/O error on device dm-xx, logical block 1
kernel: Buffer I/O error on device dm-xx, logical block 6291455
kernel: Buffer I/O error on device dm-xx, logical block 6291455
kernel: Buffer I/O error on device dm-xx, logical block 6291455
When running lvscan, similar errors are shown as well:
/dev/rootvg/root.snapshot: read failed after 0 of 4096 at 25769738240: Input/output error
/dev/rootvg/root.snapshot: read failed after 0 of 4096 at 25769795584: Input/output error
/dev/rootvg/root.snapshot: read failed after 0 of 4096 at 0: Input/output error
/dev/rootvg/root.snapshot: read failed after 0 of 4096 at 4096: Input/output error
/dev/rootvg/root.snapshot: read failed after 0 of 4096 at 25769795584: Input/output error
/dev/rootvg/root.snapshot: read failed after 0 of 4096 at 0: Input/output error
/dev/rootvg/root.snapshot: read failed after 0 of 4096 at 4096: Input/output error
Solution
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In this Document
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