HP-UX System Administrator's Guide: Logical Volume Management (762803-001, March 2014)

# lvremove -F /dev/vg01/lvol1_S5
Refer to the lvremove(1M) manpage for more details and full syntax for deleting logical volumes
on the snapshot tree.
3.11.4 Displaying Snapshot Information
The vgdisplay, lvdisplay, and pvdisplay commands will now display additional information
when snapshots are involved.
A summary of the additional fields displayed by these commands is listed here. See the respective
manpages and the LVM Snapshot Logical Volumes white paper for more detailed information.
The vgdisplay command now additionally displays the following data:
• The number of snapshot logical volumes in the volume group.
• The unshare unit size for the volume group.
• The number of pre-allocated physical extents in the volume group.
• The current and the maximum snapshot capacity for the volume group.
• The listing of snapshot logical volumes and some snapshot related attributes for each.
The lvdisplay command now additionally displays the following data for a logical volume which
has snapshots associated with it:
• The number of snapshots associated with the logical volume
• A listing of the names of the snapshot logical volumes associated with the logical volume.
For a snapshot logical volume, the following new details are displayed:
• The LV Status will now also display the type of snapshot.
• The state of the snapshot (operative, inoperative, over-committed, etc).
• The total number and the current number of pre-allocated logical extents associated with the
snapshot volume.
• The number of logical extents that are currently allocated or unshared for the snapshot.
• The current number of pre-allocated physical extents for the snapshots.
• The name of the logical volume of which this logical volume is a snapshot.
• The creation timestamp for the snapshot.
• The state of whether automatic increase of pre-allocated extent is enabled or not.
• The threshold value of a space efficient snapshot logical volume.
• A listing of the distribution of the unshared logical and physical extents for the snapshot.
• A listing of the pre-allocated extents for the snapshot.
• A listing of the logical extents of the snapshot that have been unshared, and mapping of these
logical extents to physical extents.
The pvdisplay command now additionally displays the following data:
• The number of pre-allocated physical extents on it.
• A listing of the distribution of unshared physical extents per logical volume that lie on this
physical volume.
• The extent mapping for the physical volume will indicate pre-allocated extents with a status
of “pre-allocated”.
110 Administering LVM