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vgchgid(1m) -- modify the Volume Group ID (VGID) on a given set of physical devices
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The vgchgid command is designed to change the LVM Volume Group ID (VGID) on a supplied set of disks. vgchgid will work with any type of storage, but it is primarily targeted at disk arrays that are able to create "snapshots" or "clones" of mirrored LUNs. vgchgid accepts a set of raw physical devices and checks the following criteria before it alters the VGID: + All raw physical volume devices ... |
vgcreate(1m) -- create LVM volume group
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The vgcreate command creates a new volume group. vg_name is a symbolic name for the volume group and must be used in all references to it. vg_name is the path to a directory entry under /dev that must contain a character special file named group. Except for the group entry, the vg_name directory should be empty. The vg_name directory and the group file have to be created by the user (see lvm(7)). ... |
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vgdisplay(1m) -- display information about LVM volume groups
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The vgdisplay command displays information about volume groups. For each vg_name specified, vgdisplay displays information for that volume group only. If no vg_name is specified, vgdisplay displays names and corresponding information for all defined volume groups. The volume group must be activated (see vgchange(1M)) before it can be displayed. |
vgexport(1m) -- export an LVM volume group and its associated logical volumes
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Using the format of the first command line of the SYNOPSIS above, the vgexport command can be used to remove a volume group from the system. The volume group will be removed without modifying the logical volume information found on the physical volumes. The volume group identified by vg_name is removed from the /etc/lvmtab file, and the associated device files including the vg_name directory and g... |
vgextend(1m) -- extend an LVM volume group by adding physical volumes
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The vgextend command assigns additional physical volumes to volume group vg_name. The volume group must be active. Volume groups are extended by adding one or more physical volumes specified by pv_path ... After the physical volumes have been successfully added to the volume group, the disk space they contain can be allocated to logical volumes. Before assigning an additional physical volume to a ... |
vgimport(1m) -- import an LVM volume group onto the system
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The vgimport command adds the specified volume group to the system. The physical volumes, specified as pv_path ..., are scanned to obtain the volume group information and logical volume information. This command works much like vgcreate by requiring that the volume group device directory and the group special file be created before the command is executed (see vgcreate(1M)). The vg_name is added f... |
vgreduce(1m) -- remove physical volumes from an LVM volume group
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The vgreduce command removes each physical volume specified by a pv_path argument from volume group vg_name. The vgreduce command with -f option removes all missing physical volume from the volume group. All but one physical volume can be removed. The last physical volume must remain in the volume group so that the logical volume driver can continue to operate. The last physical volume in the volu... |
vgremove(1m) -- remove LVM volume group definition from the system
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The vgremove command removes from the system the last physical volume of the volume group and the definition of the volume group or groups specified by vg_name .... Since all system knowledge of the volume group and its contents are removed, the volume group can no longer be accessed. To move a volume group from one system to another, use the vgexport command instead (see vgexport(1M)). Before exe... |
vgrestore(1m) -- restore a VxVM disk group back to an LVM volume group
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The vgrestore command restores a Logical Volume Manager (LVM) volume group that was previously converted to a VxVM disk group by the vxvmconvert utility. |
vgscan(1m) -- scan physical volumes for LVM volume groups
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The vgscan command allows the re-creation of the /etc/lvmtab file and possibly the associated volume group device files. This command should be run only in the event of a catastrophic error such as the deletion of the /etc/lvmtab file or the mismatch of names of the physical volumes in the /etc/lvmtab file to the actual physical volume path configuration. If the /etc/lvmtab file exists, the inform... |
vgsync(1m) -- synchronize stale logical volume mirrors in LVM volume groups
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The vgsync command synchronizes the physical extents of each mirrored logical volume in the volume group specified by vg_name .... Synchronization occurs only on the physical extents that are stale mirrors of the original logical extent. The synchronization process can be time consuming, depending on the hardware characteristics and the amount of data. Unless disabled, the mirrors within a volume ... |
vi(1) -- screen-oriented (visual) text editor
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The vi (visual) program is a display-oriented text editor that is based on the underlying ex line editor (see ex(1)). It is possible to switch back and forth between the two and to execute ex commands from within vi. The line-editor commands and the editor options are described in ex(1). Only the visual mode commands are described here. The view program is identical to vi except that the readonly ... |
view(1) -- screen-oriented (visual) text editor
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The vi (visual) program is a display-oriented text editor that is based on the underlying ex line editor (see ex(1)). It is possible to switch back and forth between the two and to execute ex commands from within vi. The line-editor commands and the editor options are described in ex(1). Only the visual mode commands are described here. The view program is identical to vi except that the readonly ... |
vipw(1m) -- edit the password file
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vipw edits the password file while setting the appropriate locks, and does any necessary processing after the password file is unlocked. If the password file is already being edited, you will be told to try again later. The vi editor is used unless the environment variable EDITOR indicates an alternate editor. vipw performs a number of consistency checks on the password entry for root, and does no... |
vis(1) -- make unprintable and non-ASCII characters in a file visible or invisible
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vis reads characters from each file in sequence and writes them to the standard output, converting those that are not printable or not ASCII into a visible form. inv performs the inverse function, reading printable characters from each file, returning them to non-printable or non-ASCII form, if appropriate, then writing them to standard output; Non-printable ASCII characters are represented using ... |