openstack-manuals/doc/config-reference/source/tables/cinder-lvm.rst

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Description of LVM configuration options
Configuration option = Default value Description
[DEFAULT]
lvm_conf_file = /etc/cinder/lvm.conf (String) LVM conf file to use for the LVM driver in Cinder; this setting is ignored if the specified file does not exist (You can also specify 'None' to not use a conf file even if one exists).
lvm_max_over_subscription_ratio = 1.0 (Floating point) max_over_subscription_ratio setting for the LVM driver. If set, this takes precedence over the general max_over_subscription_ratio option. If None, the general option is used.
lvm_mirrors = 0 (Integer) If >0, create LVs with multiple mirrors. Note that this requires lvm_mirrors + 2 PVs with available space
lvm_suppress_fd_warnings = False (Boolean) Suppress leaked file descriptor warnings in LVM commands.
lvm_type = default (String) Type of LVM volumes to deploy; (default, thin, or auto). Auto defaults to thin if thin is supported.
volume_group = cinder-volumes (String) Name for the VG that will contain exported volumes