Gitweb: http://git.fedorahosted.org/git/?p=lvm2.git;a=commitdiff;h=651613e9a40c9cc0a... Commit: 651613e9a40c9cc0aaf4a1c7c262ad394ac93ffb Parent: e6e647489d49e02dbe9795371df7b154d30baf74 Author: Zdenek Kabelac zkabelac@redhat.com AuthorDate: Thu Oct 30 19:44:42 2014 +0100 Committer: Zdenek Kabelac zkabelac@redhat.com CommitterDate: Thu Oct 30 23:58:48 2014 +0100

man: update lvcreate with sparse

Document sparse device creation and its default segtype selection. --- man/lvcreate.8.in | 22 ++++++++++++++-------- 1 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/man/lvcreate.8.in b/man/lvcreate.8.in index c843949..e2b6d91 100644 --- a/man/lvcreate.8.in +++ b/man/lvcreate.8.in @@ -155,7 +155,7 @@ Normally the \fB--zero\fP \fIn\fP argument has to be supplied too because zeroing (the default behaviour) also requires activation. If autoactivation option is used (\fB-a\fIay\fR), the logical volume is activated only if it matches an item in the -.BR activation / auto_activation_volume_list +.IR activation / auto_activation_volume_list set in \fBlvm.conf\fP(5). For autoactivated logical volumes, \fB--zero\fP \fIn\fP and \fB--wipesignatures\fP \fIn\fP is always assumed and it can't @@ -291,7 +291,9 @@ The default is "\fIraid1\fP". See the legacy "\fImirror\fP" segment type. See .BR lvm.conf (5) settings -.BR global / mirror_segtype_default +.IR global / mirror_segtype_default +and +.IR global / raid10_segtype_default to configure default mirror segment type. The options \fB--mirrorlog\fP and \fB--corelog\fP apply @@ -316,9 +318,9 @@ Starts or avoids monitoring a mirrored, snapshot or thin pool logical volume wit dmeventd, if it is installed. If a device used by a monitored mirror reports an I/O error, the failure is handled according to -.BR activation / mirror_image_fault_policy +.IR activation / mirror_image_fault_policy and -.BR activation / mirror_log_fault_policy +.IR activation / mirror_log_fault_policy set in \fBlvm.conf\fP(5). .TP .IR \fB-n ", " \fB--name " " LogicalVolume { Name | Path } @@ -531,8 +533,12 @@ or Default type is \fIlinear\fP. .TP .BR -V ", " --virtualsize " " \fIVirtualSize [ \fIbBsSkKmMgGtTpPeE ] -Creates a sparse device of the given size (in MiB by default) using a snapshot -or thinly provisioned device when thin pool is specified. +Creates a thinly provisioned device or a sparse device of the given size (in MiB by default). +See +.BR lvm.conf (5) +settings +.IR global / sparse_segtype_default +to configure default sparse segment type. See \fBlvmthin\fP(7) for more info about thin provisioning support. Anything written to a sparse snapshot will be returned when reading from it. Reading from other areas of the device will return blocks of zeros. @@ -546,12 +552,12 @@ Controls wiping of detected signatures on newly created Logical Volume. If this option is not specified, then by default signature wiping is done each time the zeroing (\fB-Z\fP/\fB--zero\fP) is done. This default behaviour can be controlled by -.BR allocation / wipe_signatures_when_zeroing_new_lvs +.IR allocation / wipe_signatures_when_zeroing_new_lvs setting found in .BR lvm.conf (5). .br If blkid wiping is used -.BR allocation / use_blkid_wiping +.IR allocation / use_blkid_wiping setting in .BR lvm.conf (5)) and LVM2 is compiled with blkid wiping support, then \fBblkid\fP(8) library is used