LVM Volume Group Dynamic LUN Expansion (DLE) and Contraction (DLC) (September 2009)

• Expected 5 Physical Volumes but only found 4

The volume group has five physical volumes, but vgmodify can only locate four. Verify that

all five physical volumes are accessible. The vgmodify command cannot continue until it

can access all five.

• VGRA space (Kbytes) without PE renumbering

The amount of space available for the VGRA when physical extent renumbering is left

unchanged.

• VGRA space (Kbytes) PE renumbering lower

The amount of space available for the VGRA when physical extents are renumbered lower so

that the first physical extent can be used for metadata. All physical extent numbers are

reduced by one.

• VGRA space (Kbytes) PE renumbering higher

The amount of space available for the VGRA when physical extents are renumbered higher

so that metadata space can be returned to user space. All physical extent numbers are

increased by one.

• Prior to modification test IO to "/dev/rdsk/c2t3d0" failed

Before making any modifications, a test write is performed to each physical volume. The test

write failed to this device. vgmodify stopped before making any changes applicable to the

new configuration. Check the device before repeating the command.

• Physical Volume "/dev/rdsk/c2t3d0" is already the type requested

The -B option was used with c2t3d0 in the list of physical volumes, but this physical volume

is already the type requested. It is already bootable if –B y, or non-bootable if –B n.

• Installing the new configuration was partially successful. Examine vgcfgrestore(1M) messages

to understand which disks may require manual restoration from the

"/etc/lvmconf/vg01.conf" file. The Volume Group should activate in its current state without

quorum override but not all disks may attach.

vgmodify was partially successfully in placing the new configuration onto the physical

volumes but some failed. You will see error messages from vgcfgrestore prior to this

message. Check the disks associated with the failures and then manually restore to these

disks.

• The space available for the configuration data will be limited by having bootable disks. If

this is not a boot VG then consider changing the type, using -B n, of the following bootable

disks: