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man: systemid option for vgcreate and vgchange

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This commit is contained in:
David Teigland 2015-02-20 14:58:01 -06:00
parent 55dd45239a
commit 3361e662f4
2 changed files with 20 additions and 1 deletions
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8
man/vgchange.8.in
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@ -47,6 +47,8 @@ vgchange \(em change attributes of a volume group
.IR PhysicalExtentSize [ bBsSkKmMgGtTpPeE ]]
.RB [ \-S | \-\-select
.IR Selection ]
.RB [ \-\-systemid
.IR SystemID ]
.RB [ \-\-refresh ]
.RB [ \-t | \-\-test ]
.RB [ \-v | \-\-verbose ]
@ -243,6 +245,12 @@ impact on I/O performance to the logical volume. The smallest PE is 1KiB.
The 2.4 kernel has a limitation of 2TiB per block device.
.TP
.BR \-\-systemid " " \fISystemID
Changes the system ID of the VG. Using this option requires caution
because the VG may become foreign to the host running the command,
leaving the host unable to access it. See
.BR lvmsystemid (7).
.TP
.BR \-\-refresh
If any logical volume in the volume group is active, reload its metadata.
This is not necessary in normal operation, but may be useful

13
man/vgcreate.8.in
View File

@ -27,6 +27,8 @@ vgcreate \(em create a volume group
.IR NumberOfCopies | unmanaged | all ]
.RB [ \-s | \-\-physicalextentsize
.IR PhysicalExtentSize [ bBsSkKmMgGtTpPeE ]]
.RB [ \-\-systemid
.IR SystemID ]
.RB [ \-t | \-\-test ]
.RB [ \-v | \-\-verbose ]
.RB [ \-\-version ]
@ -110,7 +112,6 @@ power of 2 of at least 1 sector (where the sector size is the largest sector
size of the PVs currently used in the VG) or, if not a power of 2, at least
128KiB. For the older LVM1 format, it must be a power of 2 of at least 8KiB.
The default is 4 MiB.
Once this value has been set, it is difficult to change it without recreating
the volume group which would involve backing up and restoring data on any
logical volumes. However, if no extents need moving for the new
@ -126,6 +127,16 @@ impact on I/O performance to the logical volume. The smallest PE is 1KiB
The 2.4 kernel has a limitation of 2TiB per block device.
.TP
.BR \-\-systemid " " \fISystemID
Specifies the system ID that will be given to the new VG, overriding the
system ID of the host running the command. A VG is normally created
without this option, in which case the new VG is given the system ID of
the host creating it. Using this option requires caution because the
system ID of the new VG may not match the system ID of the host running
the command, leaving the VG inaccessible to the host. See
.BR lvmsystemid (7).
.SH PHYSICAL DEVICE OPTIONS
The following options are available for initializing physical devices in the
volume group. These options are further described in the \fBpvcreate\fP(8)