diff options
| -rw-r--r-- | conf/example.conf.in | 57 | ||||
| -rw-r--r-- | man/lvconvert.8_pregen | 61 | ||||
| -rw-r--r-- | man/lvcreate.8_pregen | 5 | ||||
| -rw-r--r-- | man/pvck.8_pregen | 67 |
4 files changed, 177 insertions, 13 deletions
diff --git a/conf/example.conf.in b/conf/example.conf.in index dfe800646..a5eba014a 100644 --- a/conf/example.conf.in +++ b/conf/example.conf.in @@ -88,6 +88,22 @@ devices { # external_device_info_source = "none" + # Configuration option devices/hints. + # Use a local file to remember which devices have PVs on them. + # Some commands will use this as an optimization to reduce device + # scanning, and will only scan the listed PVs. Removing the hint file + # will cause lvm to generate a new one. Disable hints if PVs will + # be copied onto devices using non-lvm commands, like dd. + # + # Accepted values: + # all + # Use all hints. + # none + # Use no hints. + # + # This configuration option has an automatic default value. + # hints = "all" + # Configuration option devices/preferred_names. # Select which path name to display for a block device. # If multiple path names exist for a block device, and LVM needs to @@ -167,8 +183,18 @@ devices { sysfs_scan = 1 # Configuration option devices/scan_lvs. - # Scan LVM LVs for layered PVs. - scan_lvs = 1 + # Scan LVM LVs for layered PVs, allowing LVs to be used as PVs. + # When 1, LVM will detect PVs layered on LVs, and caution must be + # taken to avoid a host accessing a layered VG that may not belong + # to it, e.g. from a guest image. This generally requires excluding + # the LVs with device filters. Also, when this setting is enabled, + # every LVM command will scan every active LV on the system (unless + # filtered), which can cause performance problems on systems with + # many active LVs. When this setting is 0, LVM will not detect or + # use PVs that exist on LVs, and will not allow a PV to be created on + # an LV. The LVs are ignored using a built in device filter that + # identifies and excludes LVs. + scan_lvs = 0 # Configuration option devices/multipath_component_detection. # Ignore devices that are components of DM multipath devices. @@ -720,7 +746,8 @@ log { # Configuration option log/indent. # Indent messages according to their severity. - indent = 1 + # This configuration option has an automatic default value. + # indent = 0 # Configuration option log/command_names. # Display the command name on each line of output. @@ -746,6 +773,20 @@ log { # available: memory, devices, io, activation, allocation, # metadata, cache, locking, lvmpolld. Use "all" to see everything. debug_classes = [ "memory", "devices", "io", "activation", "allocation", "metadata", "cache", "locking", "lvmpolld", "dbus" ] + + # Configuration option log/debug_file_fields. + # The fields included in debug output written to log file. + # Use "all" to include everything (the default). + # This configuration option is advanced. + # This configuration option has an automatic default value. + # debug_file_fields = [ "time", "command", "fileline", "message" ] + + # Configuration option log/debug_output_fields. + # The fields included in debug output written to stderr. + # Use "all" to include everything (the default). + # This configuration option is advanced. + # This configuration option has an automatic default value. + # debug_output_fields = [ "time", "command", "fileline", "message" ] } # Configuration section backup. @@ -1174,6 +1215,16 @@ global { # When enabled, an LVM command that changes PVs, changes VG metadata, # or changes the activation state of an LV will send a notification. notify_dbus = 1 + + # Configuration option global/io_memory_size. + # The amount of memory in KiB that LVM allocates to perform disk io. + # LVM performance may benefit from more io memory when there are many + # disks or VG metadata is large. Increasing this size may be necessary + # when a single copy of VG metadata is larger than the current setting. + # This value should usually not be decreased from the default; setting + # it too low can result in lvm failing to read VGs. + # This configuration option has an automatic default value. + # io_memory_size = 8192 } # Configuration section activation. diff --git a/man/lvconvert.8_pregen b/man/lvconvert.8_pregen index 842be37a8..7252f6fb9 100644 --- a/man/lvconvert.8_pregen +++ b/man/lvconvert.8_pregen @@ -43,6 +43,10 @@ lvconvert - Change logical volume layout .ad b .br .ad l + \fB--cachevol\fP \fILV\fP +.ad b +.br +.ad l \fB-c\fP|\fB--chunksize\fP \fISize\fP[k|UNIT] .ad b .br @@ -567,7 +571,7 @@ Convert LV to a thin LV, using the original LV as an external origin. .br - -Attach a cache to an LV, converts the LV to type cache. +Attach a cache pool to an LV, converts the LV to type cache. .br .P \fBlvconvert\fP \fB--type\fP \fBcache\fP \fB--cachepool\fP \fILV\fP \fILV\fP\fI_linear_striped_thinpool_vdo_vdopool_vdopooldata_raid\fP @@ -629,7 +633,7 @@ Attach a cache to an LV, converts the LV to type cache. Attach a writecache to an LV, converts the LV to type writecache. .br .P -\fBlvconvert\fP \fB--type\fP \fBwritecache\fP \fB--cachepool\fP \fILV\fP \fILV\fP\fI_linear_striped_raid\fP +\fBlvconvert\fP \fB--type\fP \fBwritecache\fP \fB--cachevol\fP \fILV\fP \fILV\fP\fI_linear_striped_raid\fP .br .RS 4 .ad l @@ -641,6 +645,49 @@ Attach a writecache to an LV, converts the LV to type writecache. .br - +Attach a cache to an LV, converts the LV to type cache. +.br +.P +\fBlvconvert\fP \fB--type\fP \fBcache\fP \fB--cachevol\fP \fILV\fP \fILV\fP\fI_linear_striped_thinpool_raid\fP +.br +.RS 4 +.ad l +[ \fB-H\fP|\fB--cache\fP ] +.ad b +.br +.ad l +[ \fB-Z\fP|\fB--zero\fP \fBy\fP|\fBn\fP ] +.ad b +.br +.ad l +[ \fB-c\fP|\fB--chunksize\fP \fISize\fP[k|UNIT] ] +.ad b +.br +.ad l +[ \fB--cachemetadataformat\fP \fBauto\fP|\fB1\fP|\fB2\fP ] +.ad b +.br +.ad l +[ \fB--cachemode\fP \fBwritethrough\fP|\fBwriteback\fP|\fBpassthrough\fP ] +.ad b +.br +.ad l +[ \fB--cachepolicy\fP \fIString\fP ] +.ad b +.br +.ad l +[ \fB--cachesettings\fP \fIString\fP ] +.ad b +.br +.ad l +[ \fB--poolmetadatasize\fP \fISize\fP[m|UNIT] ] +.ad b +.br +[ COMMON_OPTIONS ] +.RE +.br +- + Convert LV to type thin-pool. .br .P @@ -1047,7 +1094,7 @@ See \fBlvmcache\fP(7) for more information. .ad l \fB--cachepool\fP \fILV\fP .br -The name of a cache pool LV. +The name of a cache pool. .ad b .HP .ad l @@ -1063,6 +1110,12 @@ See \fBlvmcache\fP(7) for more information. .ad b .HP .ad l +\fB--cachevol\fP \fILV\fP +.br +The name of a cache volume. +.ad b +.HP +.ad l \fB-c\fP|\fB--chunksize\fP \fISize\fP[k|UNIT] .br The size of chunks in a snapshot, cache pool or thin pool. @@ -1689,7 +1742,7 @@ Convert LV to a thin LV, using the original LV as an external origin .br - -Attach a cache to an LV (infers --type cache). +Attach a cache pool to an LV (infers --type cache). .br .P \fBlvconvert\fP \fB-H\fP|\fB--cache\fP \fB--cachepool\fP \fILV\fP \fILV\fP\fI_linear_striped_thinpool_vdo_vdopool_vdopooldata_raid\fP diff --git a/man/lvcreate.8_pregen b/man/lvcreate.8_pregen index f1d9f138d..a80f9f571 100644 --- a/man/lvcreate.8_pregen +++ b/man/lvcreate.8_pregen @@ -309,7 +309,8 @@ numeric suffix. In the usage section below, when creating a pool and the name is omitted the new LV pool name is generated with the "vpool" for vdo-pools for prefix and a unique numeric suffix. -Also pool name can be specified together with \fIVG\fP name i.e.: + +Pool name can be specified together with \fIVG\fP name i.e.: vg00/mythinpool. .SH USAGE Create a linear LV. @@ -1097,7 +1098,7 @@ See \fBlvmcache\fP(7) for more information. .ad l \fB--cachepool\fP \fILV\fP .br -The name of a cache pool LV. +The name of a cache pool. .ad b .HP .ad l diff --git a/man/pvck.8_pregen b/man/pvck.8_pregen index 5277418f8..6cdfe422d 100644 --- a/man/pvck.8_pregen +++ b/man/pvck.8_pregen @@ -1,26 +1,58 @@ .TH PVCK 8 "LVM TOOLS #VERSION#" "Red Hat, Inc." .SH NAME -pvck - Check the consistency of physical volume(s) +pvck - Check metadata on physical volumes . .SH SYNOPSIS -\fBpvck\fP \fIposition_args\fP +\fBpvck\fP \fIoption_args\fP \fIposition_args\fP .br [ \fIoption_args\fP ] .br .SH DESCRIPTION -pvck checks the LVM metadata for consistency on PVs. +pvck checks LVM metadata on PVs. + +Use the --dump option to extract metadata from PVs for debugging. +With dump, set --pvmetadatacopies 2 to extract metadata from a +second metadata area at the end of the device. Use the --file +option to save the raw metadata to a specified file. (The raw +metadata is not usable with vgcfgbackup and vgcfgrestore.) + .SH USAGE +Check for metadata on a device +.br +.P \fBpvck\fP \fIPV\fP ... .br .RS 4 +[ COMMON_OPTIONS ] +.RE +.br + +Print metadata from a device +.br +.P +\fBpvck\fP \fB--dump\fP \fIString\fP \fIPV\fP +.br +.RS 4 .ad l -[ \fB--labelsector\fP \fINumber\fP ] +[ \fB-f\fP|\fB--file\fP \fIString\fP ] +.ad b +.br +.ad l +[ \fB--[pv]metadatacopies\fP \fB0\fP|\fB1\fP|\fB2\fP ] .ad b .br [ COMMON_OPTIONS ] .RE .br +Common options for command: +. +.RS 4 +.ad l +[ \fB--labelsector\fP \fINumber\fP ] +.ad b +.RE + Common options for lvm: . .RS 4 @@ -113,6 +145,21 @@ For testing and debugging. .ad b .HP .ad l +\fB--dump\fP \fIString\fP +.br +Dump metadata from a PV. Option values include \fBmetadata\fP +to print or save the current text metadata, \fBmetadata_area\fP +to save the entire text metadata area to a file, \fBmetadata_all\fP +to save the current and any previous complete versions of metadata +to a file, and \fBheaders\fP to print and check LVM headers. +.ad b +.HP +.ad l +\fB-f\fP|\fB--file\fP \fIString\fP +.br +.ad b +.HP +.ad l \fB-h\fP|\fB--help\fP .br Display help text. @@ -154,6 +201,18 @@ on the command. .ad b .HP .ad l +\fB--[pv]metadatacopies\fP \fB0\fP|\fB1\fP|\fB2\fP +.br +The number of metadata areas to set aside on a PV for storing VG metadata. +When 2, one copy of the VG metadata is stored at the front of the PV +and a second copy is stored at the end. +When 1, one copy of the VG metadata is stored at the front of the PV. +When 0, no copies of the VG metadata are stored on the given PV. +This may be useful in VGs containing many PVs (this places limitations +on the ability to use vgsplit later.) +.ad b +.HP +.ad l \fB-q\fP|\fB--quiet\fP ... .br Suppress output and log messages. Overrides --debug and --verbose. |