[linux-lvm] pvs complains of missing PVs that are not missing
Joe Harvell
joe.harvell at tekcomms.com
Wed Oct 9 23:04:20 UTC 2013
Le 09/10/2013 17:09, matthew patton a écrit :
> clear LVM's cache (or just disable it in lvm.conf), rescan pv, vg, lv. make sure udev is creating the necessary hooks.
>
I'm not sure how to disable the cache. Here are my relevant settings in
/etc/lvm/lvm.conf:
# If set, the cache of block device nodes with all associated symlinks
# will be constructed out of the existing udev database content.
# This avoids using and opening any inapplicable non-block devices or
# subdirectories found in the device directory. This setting is applied
# to udev-managed device directory only, other directories will be
scanned
# fully. LVM2 needs to be compiled with udev support for this
setting to
# take effect. N.B. Any device node or symlink not managed by udev in
# udev directory will be ignored with this setting on.
obtain_device_list_from_udev = 1
# The results of the filtering are cached on disk to avoid
# rescanning dud devices (which can take a very long time).
# By default this cache is stored in the /etc/lvm/cache directory
# in a file called '.cache'.
# It is safe to delete the contents: the tools regenerate it.
# (The old setting 'cache' is still respected if neither of
# these new ones is present.)
# N.B. If obtain_device_list_from_udev is set to 1 the list of
# devices is instead obtained from udev and any existing .cache
# file is removed.
cache_dir = "/etc/lvm/cache"
cache_file_prefix = ""
# You can turn off writing this cache file by setting this to 0.
write_cache_state = 1
And as expected based on my setting for obtain_device_list_from_udev,
there is no /etc/lvm/cache directorypresent:
joey at akita ~ $ sudo nano -w /etc/lvm/lvm.conf
Mot de passe :
joey at akita ~ $ ls -al /etc/lvm/
total 68
drwxr-xr-x 5 root root 4096 7 oct. 14:12 .
drwxr-xr-x 74 root root 4096 9 oct. 11:21 ..
drwx------ 2 root root 4096 8 oct. 22:21 archive
drwx------ 2 root root 4096 8 oct. 22:21 backup
-rw-r--r-- 1 root root 45697 9 oct. 17:27 lvm.conf
drwxr-xr-x 2 root root 4096 8 oct. 19:24 profile
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