We had a disk fail in a server and replaced it before removing the
drive from LVM.
The server has 4 physical drives (PV's), each with it's own volume
group (VG). Each VG has 2 or more logical volumes (LV's.) Now LVM is
complaining about the missing drive. So we have a VG (vg04) with two
LV's that have become orphans than we need to clear out of the system.
The problem is every time we run any LVM command we get some 'read
failed' errors. I've tried different commands to try to clear it out
but so far without luck:
# lvscan
/dev/vg04/swap: read failed after 0 of 4096 at 4294901760: Input/output error
/dev/vg04/swap: read failed after 0 of 4096 at 4294959104: Input/output error
/dev/vg04/swap: read failed after 0 of 4096 at 0: Input/output error
/dev/vg04/swap: read failed after 0 of 4096 at 4096: Input/output error
/dev/vg04/vz: read failed after 0 of 4096 at 995903864832: Input/output error
/dev/vg04/vz: read failed after 0 of 4096 at 995903922176: Input/output error
/dev/vg04/vz: read failed after 0 of 4096 at 0: Input/output error
/dev/vg04/vz: read failed after 0 of 4096 at 4096: Input/output error
# vgreduce vg04 --removemissing --force
/dev/vg04/swap: read failed after 0 of 4096 at 4294901760: Input/output error
/dev/vg04/swap: read failed after 0 of 4096 at 4294959104: Input/output error
/dev/vg04/swap: read failed after 0 of 4096 at 0: Input/output error
/dev/vg04/swap: read failed after 0 of 4096 at 4096: Input/output error
/dev/vg04/vz: read failed after 0 of 4096 at 995903864832: Input/output error
/dev/vg04/vz: read failed after 0 of 4096 at 995903922176: Input/output error
/dev/vg04/vz: read failed after 0 of 4096 at 0: Input/output error
/dev/vg04/vz: read failed after 0 of 4096 at 4096: Input/output error
Volume group "vg04" not found
# vgchange -a n /dev/vg04
/dev/vg04/swap: read failed after 0 of 4096 at 4294901760: Input/output error
/dev/vg04/swap: read failed after 0 of 4096 at 4294959104: Input/output error
/dev/vg04/swap: read failed after 0 of 4096 at 0: Input/output error
/dev/vg04/swap: read failed after 0 of 4096 at 4096: Input/output error
/dev/vg04/vz: read failed after 0 of 4096 at 995903864832: Input/output error
/dev/vg04/vz: read failed after 0 of 4096 at 995903922176: Input/output error
/dev/vg04/vz: read failed after 0 of 4096 at 0: Input/output error
/dev/vg04/vz: read failed after 0 of 4096 at 4096: Input/output error
Volume group "vg04" not found
# lvchange -a n /dev/vg04/vz
/dev/vg04/swap: read failed after 0 of 4096 at 4294901760: Input/output error
/dev/vg04/swap: read failed after 0 of 4096 at 4294959104: Input/output error
/dev/vg04/swap: read failed after 0 of 4096 at 0: Input/output error
/dev/vg04/swap: read failed after 0 of 4096 at 4096: Input/output error
/dev/vg04/vz: read failed after 0 of 4096 at 995903864832: Input/output error
/dev/vg04/vz: read failed after 0 of 4096 at 995903922176: Input/output error
/dev/vg04/vz: read failed after 0 of 4096 at 0: Input/output error
/dev/vg04/vz: read failed after 0 of 4096 at 4096: Input/output error
Volume group "vg04" not found
Skipping volume group vg04
The missing VG and LV's are not important, we just want to remove them.
I don't know if it's useful, but this is the output from 'lvm dumpconfig':
# lvm dumpconfig
devices {
dir="/dev"
scan="/dev"
preferred_names=["^/dev/mpath/", "^/dev/mapper/mpath", "^/dev/[hs]d"]
filter="a/.*/"
cache_dir="/etc/lvm/cache"
cache_file_prefix=""
write_cache_state=1
sysfs_scan=1
md_component_detection=1
md_chunk_alignment=1
data_alignment_detection=1
data_alignment=0
data_alignment_offset_detection=1
ignore_suspended_devices=0
disable_after_error_count=0
require_restorefile_with_uuid=1
}
dmeventd {
mirror_library="libdevmapper-event-lvm2mirror.so"
snapshot_library="libdevmapper-event-lvm2snapshot.so"
}
activation {
udev_sync=1
udev_rules=1
missing_stripe_filler="error"
reserved_stack=256
reserved_memory=8192
process_priority=-18
mirror_region_size=512
readahead="auto"
mirror_log_fault_policy="allocate"
mirror_image_fault_policy="remove"
snapshot_autoextend_threshold=100
snapshot_autoextend_percent=20
use_mlockall=0
monitoring=1
polling_interval=15
}
global {
umask=63
test=0
units="h"
si_unit_consistency=1
activation=1
proc="/proc"
locking_type=1
wait_for_locks=1
fallback_to_clustered_locking=1
fallback_to_local_locking=1
locking_dir="/var/lock/lvm"
prioritise_write_locks=1
abort_on_internal_errors=0
metadata_read_only=0
}
shell {
history_size=100
}
backup {
backup=1
backup_dir="/etc/lvm/backup"
archive=1
archive_dir="/etc/lvm/archive"
retain_min=10
retain_days=30
}
log {
verbose=0
syslog=1
overwrite=0
level=0
indent=1
command_names=0
prefix=" "
}
#
Any hints appreciated!
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