9:52 a.m.
Now the write mode of thin pool will be: write mode -> (queue IO) mode -> write mode
->
(queue IO) mode -> write mode ... Please see the dmesg log as follows:
[ 3.878793] kdump[523]: saving vmcore
[ 4.452306] device-mapper: thin: 253:2: reached low water mark for data device: sending
event.
[ 4.484872] device-mapper: thin: 253:2: switching pool to out-of-data-space (queue IO)
mode
[ 4.444225] kdump.sh[524]: Checking for memory holes : [ 0.0
%] / Checking for memory h
oles : [100.0 %] | Excluding unnecessary pages
: [100.0 %] \
[ 4.461538] kdump.sh[527]: WARNING: Sum of all thin volume sizes (300.00 MiB) exceeds
the size of thin pools and the size of whole
volume group (296.00 MiB).
[ 4.491146] kdump.sh[527]: Size of logical volume vg00/thinpool_tdata changed from
12.00 MiB (3 extents) to 20.00 MiB (5 extents).^
M
[ 5.106573] device-mapper: thin: 253:2: switching pool to write mode
[ 5.115955] device-mapper: thin: 253:2: growing the data device from 192 to 320 blocks
[ 5.141481] device-mapper: thin: 253:2: reached low water mark for data device: sending
event.
[ 4.629948] kdump.sh[527]: Logical volume vg00/thinpool_tdata successfully resized.
[ 5.199211] device-mapper: thin: 253:2: switching pool to out-of-data-space (queue IO)
mode
[ 9.783912] kdump.sh[524]: Copying data : [ 66.1
%] - eta: 1s
[ 9.793645] kdump.sh[552]: WARNING: Sum of all thin volume sizes (300.00 MiB) exceeds
the size of thin pools and the size of whole
volume group (296.00 MiB).
[ 9.807207] kdump.sh[552]: Size of logical volume vg00/thinpool_tdata changed from
20.00 MiB (5 extents) to 32.00 MiB (8 extents).^
M
[ 10.388059] device-mapper: thin: 253:2: switching pool to write mode
[ 10.400524] device-mapper: thin: 253:2: growing the data device from 320 to 512 blocks
[ 10.431529] device-mapper: thin: 253:2: reached low water mark for data device: sending
event.
[ 9.919487] kdump.sh[552]: Logical volume vg00/thinpool_tdata successfully resized.
[ 10.494141] device-mapper: thin: 253:2: switching pool to out-of-data-space (queue IO)
mode
[ 10.067391] kdump.sh[524]: Copying data : [ 96.1
%] / eta: 0sCopying data
: [100.0 %] | eta: 0sCopying data
: [100.0 %] \
eta: 0s
[ 10.087939] kdump.sh[524]: The dumpfile is saved to
/kdumproot/mnt/var/crash/127.0.0.1-2022-06-06-14:30:24//vmcore-incomplete.
[ 10.097779] kdump.sh[524]: makedumpfile Completed.
[ 15.016903] kdump.sh[580]: WARNING: Sum of all thin volume sizes (300.00 MiB) exceeds
the size of thin pools and the size of whole
volume group (296.00 MiB).
[ 15.030921] kdump.sh[580]: Size of logical volume vg00/thinpool_tdata changed from
32.00 MiB (8 extents) to 48.00 MiB (12 extents).
[ 15.591895] device-mapper: thin: 253:2: switching pool to write mode
[ 15.604532] device-mapper: thin: 253:2: growing the data device from 512 to 768 blocks
[ 15.628054] device-mapper: thin: 253:2: reached low water mark for data device: sending
event.
[ 15.124263] kdump.sh[580]: Logical volume vg00/thinpool_tdata successfully resized.
[ 15.221498] kdump[607]: saving vmcore complete