LVM | Create an LVM disk. | pvcreate /dev/rdsk/disk_name |
VxVM | Bring a disk under Volume Manager
control. | vxdiskadd device_name Option 1 in the vxdiskadm menu adds a disk and initializes it. |
LVM | Create a volume group | vgcreate /dev/vol_grp /dev/dsk/disk_name |
VxVM | Create
a disk group. | vxdg init disk_group disk_name Option 1 in the vxdiskadm menu performs this task. |
LVM | Add a new disk to the
existing volume group. | vgextend /dev/vol_grp/dev/rdsk/ disk_name |
VxVM | Add a disk to an existing
disk group. | vxdg -g disk_group adddisk disk=devicename |
LVM | Extend a logical volume
or increase space allocated to a logical volume. | lvextend -l 50 /dev/vol_grp/lvol_name l—indicates the number of logical extents in the
logical volume |
VxVM | Increase the volume by
or to a given length. | vxresize -g disk_group -F vxfs vol_name length vxassist growto vol_name new_length vxassist growby vol_name length_change Grow the file system after growing the volumes. |
LVM | Reduce a logical
volume. | lvreduce -L to_size /dev/vol_grp/lvol_name -L indicates the number of megabytes. |
VxVM | Reduce a volume by or
to a given length. | vxresize -g disk_group -F vxfs vol_name to_length vxassist -b shrinkby vol_name length vxassist -b shrinkto vol_name newlength Shrink the file system before reducing the
volume. |
LVM | Import and
activate a volume group. | vgimport -v /dev/vol_grp\ /dev/dsk/disk_name vgchange -a y /dev/vol_grp |
VxVM | Import a disk
group to make the specified disk group accessible on the local machine. | vxdg -tfC -n newname import disk_group Option 8 in the vxdiskadm menu performs this task. |
LVM | Export and deactivate
an LVM volume group, and its associated logical volumes. | vgchange -a n vol_group vgexport /dev/vol_group |
VxVM | Deport a disk
group to disable access to the specified disk group. A disk group
cannot be deported if any volumes in the disk group are currently
open. | vxdg deport disk_group Option 9 in the vxdiskadm menu performs this task. |
LVM | Back up volume
group configuration information. | vgcfgbackup -f /pathname/filename vol_grp |
VxVM | Back up volume group configuration
information. | dgcfgbackup -f /pathname/filename vol_grp |
LVM | Restore volume
group configuration to a particular physical volume. | vgcfgrestore -n /dev/vol_grp /dev/rdsk/disk_name |
VxVM | Restore volume group configuration
to a particular physical volume. | dgcfgrestore -n /dev/vol_grp /dev/rdsk/disk_name |
LVM | Increase or decrease
secondary swap space. Enlarge an existing swap logical volume,
or add a new swap logical volume. | lvextend—to increase swap space lvreduce—to decrease swap space |
VxVM | Add a new swap volume
(HP-UX 11i Version 1.5 only). | vxassist make swapvol2 size (HP-UX 11i Version 1.5 only) |
LVM | Remove a volume
group. This destroys a volume group by removing its
last disk and removing it from /etc/lvmtab. | vgremove /dev/vol_grp This is preceded by lvremove and vgreduce down to the last disk. |
VxVM | Destroy a disk
group. | vxdg deport disk_group vxdg init disk_group |
LVM | Extend a volume
group by adding LVM disks to the volume group. | vgextend /dev/vol_grp/\ /dev/dsk/disk_name |
VxVM | Add one or more disks
to the disk group. | vxdiskadd disk_name Option 1 in the vxdiskadm main menu performs this task. |
LVM | Reduce a volume
group by reducing the number of disks in a volume group | vgreduce /dev/vol_grp /dev/dsk/disk_name |
VxVM | Remove a disk from disk
group. | vxdg -g disk_group -k rmdisk disk_name |
LVM | Mirroring a disk
involves several steps. | 1.pvcreate /dev/rdsk/second_disk 2.vgextend /dev/vol_grp\ /dev/dsk/second_disk 3.lvextend -m no_of_mirrors\ /dev/vol_grp/lvol_name /dev/dsk/second_disk |
| LVM | Mirroring the root disk
involves several steps. | pvcreate -B /dev/rdsk/second_disk mkboot -l /dev/dsk/second_disk vgextend /dev/vol_grp\ /dev/dsk/second_disk lvextend -m no_of_mirrors\ /dev/vol_grp/root_lvol /dev/dsk/second_disk lvlnboot -r /dev/vol_grp/lvol_name |
| VxVM | Mirroring a disk To
mirror volumes on a disk or control default mirroring and causes
a disk to have its contents mirrored to available space on another
disk. Note: Root disk mirroring is supported on HP-UX
11i Version 1.5 only. | vxmirror -g disk_group -d yes|no disk_name [new_disk_name] vxmirror -d yes disk_name Option 6 in the vxdiskadm menu performs this task. |
LVM | Create a logical volume
in LVM volume group. | lvcreate -L vol_size /dev/vol_grp |
VxVM | Create a volume
of one of these layout types: A concatenated volume A
striped mirror volume A RAID-5 volume | vxassist make vol_name length vxassist make vol_name length layout=mirror, stripe vxassist make vol_name length layout=raid5 |
LVM | Display information
about logical volumes. | lvdisplay /dev/vol_grp/lvol_name |
VxVM | Display all
volume information. Display information about a specific
volume. | vxprint -vt vxprint -ht vol_name |
LVM | Display information about volume
groups. | vgdisplay -v /dev/vol_grp |
VxVM | Display disk group information. Display
information about a specific disk group. | vxdisk list vxprint -g disk_group vxdg list vxdisk list disk_group |
LVM | Display information about physical
volumes. | pvdisplay /dev/dsk/disk_name |
VxVM | Display information about Volume
Manager volumes. | vxinfo or vxprint |
LVM | Remove a logical volume. | lvremove /dev/vol_grp/lvol_name |
VxVM | Remove a volume. | vxedit rm vol_name |
LVM | Remove disks from a volume group
or reduce the number of disks in the volume group. | vgreduce /dev/vol_grp /dev/dsk/disk_name |
VxVM | Remove disks from a disk
group. | vxdisk rm disk_group vxdg rmdisk disk_name vxdg -g group_name rmdisk disk_name |
LVM | Remove an entire
volume group. Before attempting to remove the volume
group, you must remove the logical volumes using lvremove, and all physical volumes except the last one using vgreduce. | vgremove /dev/vol_grp |
VxVM | Deport a disk group. You
must unmount and stop any volumes in the disk group first. | vxdg deport disk_group |
LVM | Set up alternate links to
a physical volume. If a disk has two controllers, you can
make one primary and the other an alternate link. | vgcreate /dev/vol_grp\ /dev/dsk/disk_name /dev/dsk/disk_name_2 To remove the link: vgreduce /dev/vol_grp /dev/dsk/disk_name |
VxVM | The Multipathing disk
devices in the Volume Manager represent virtual devices with one
or more physical access paths to a particular physical disk. Dynamic
Multipathing provides reliability of disk access by dynamically
switching to another physical path in the event of failure of a
path. | The DMP feature in VxVM
sets up links automatically. It is not required to set up links
separately. Refer to the manual page vxdmp (7) and
the VERITAS Volume Manager 3.1 Administrator's
Guide for more information on DMP. |
LVM | Create a mirrored logical volume. | lvcreate -l num_log_extents -m 1 -n mirr_lv /dev/vol_grp |
VxVM | Create a mirrored volume/plex or
add a mirror to an existing volume. | vxassist make vol_namelength layout=mirrorvxmake plexplex_namesdisk_name vxplex att vol_nameplex_name |
LVM | Reduce a single/double
mirrored logical volume to an unmirrored logical volume. Remove
a mirrored logical volume. | lvreduce -m 0 /dev/vol_grp/mirr_lv lvremove /dev/vol_grp/mirr_lv |
VxVM | Remove mirrors or reduce
the number of plexes/mirrors. Remove a volume with the plexes
associated with it. | vxplex -o rm dis plex_name vxedit -rf rm vol_name |
LVM | Increase the number of
mirror copies. | lvextend -m 2 /dev/vol_grp/lvol_name |
VxVM | Add mirrors to a volume
or increase the number of plexes. | vxassist mirror vol_name |
LVM | Convert a mirrored
logical volume into two logical volumes. Split a logical
volume. | lvsplit -s backup /dev/vol_grp/lvol_name |
VxVM | Snapshot a volume and
create a new volume. | vxassist snapshot vol_name new_vol_name |
LVM | Combine two logical volumes back
into a mirrored logical volume | lvmerge /dev/vol_grp/split_vol_name\ /dev/vol_grp/lvol_name split_vol_name= active logical volume |
VxVM | No VxVM equivalent. | |
LVM | Move a mirrored logical
volume from one disk to another. | pvmove -n /dev/vol_grp/lvol_name\ /dev/dsk/disk_name /dev/dsk/disk_name2 |
VxVM | Move a plex. | vxplex mv orig_plex new_plex |
LVM | Synchronize a mirrored
logical volume. Synchronize extents within a mirrored
logical volume. | lvsync /dev/vol_grp/lvol_name |
VxVM | Resynchronize operations
for the given volumes. | vxvol resync |
LVM | Synchronize extents within mirrored
logical volumes in a volume group. | vgsync /dev/vol_grp |
VxVM | Resynchronize operations
for the named volumes, or for volumes residing on the named disks. If
no medianame or volume operands are specified, then the operation
applies to all volumes. | vxrecover -s vol_name |
LVM | Start a volume. | lvchange -a y /dev/vol_grp/lvol_name |
VxVM | Start a volume. | vxrecover -s vol_name vxvol start vol_name |
LVM | Stop a volume. | lvchange -a n /dev/vol_grp/lvol_name |
VxVM | Stop a volume. | vxvol stop vol_name |
LVM | Make a disk available
as a hot spare. | pvchange -z y /dev/dsk/disk_name |
VxVM | Make a disk available
as a hot spare. | vxedit set spare=on disk_name |
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