Seagate ST34572WC Specifications download pdf (Page 33)

vgchange: Couldn't set the unique id for volume group "/dev/vgname"

Cause:

There are multiple LVM group files with the same minor number.

Recommended Action:

List the LVM group files. If there are any duplicate minor numbers, export one of the affected volume

groups, create a new group file with a unique minor number, and re-import the volume group. If you

are not familiar with this procedure, contact your HP support representative for assistance.

# ll /dev/*/group

# vgexport -m vgname.map -v -f vgname.file /dev/vgname

# mkdir /dev/vgname

# mknod /dev/vgname/group c 64 unique_minor_number

# vgimport -m vgname.map -v -f vgname.file /dev/vgname

vgcreate

vgcreate: Volume group "/dev/vgname" could not be created:

VGRA for the disk is too big for the specified parameters. Increase the extent

size or decrease max_PVs/max_LVs and try again.

Cause:

The Volume Group Reserved Area at the front of each LVM disk cannot hold all the information about

the disks in this volume group. This error typically occurs if you use disks larger than 100 GB.

Recommended Action:

Adjust the volume group creation parameters. Use the –s option of the vgextend command to select

an extent size larger than 4 MB, or use the –p option to select a smaller number of physical volumes.

Refer to vgcreate(1M) for information on these options.

vgdisplay

vgdisplay: Couldn't query volume group "/dev/vg00".

Possible error in the Volume Group minor number;

Please check and make sure the group minor number is unique.

vgdisplay: Cannot display volume group "/dev/vg00".

Cause:

This error has several possible causes:

a. There are multiple LVM group files with the same minor number.

b. Serviceguard was previously installed on the system, and the /dev/slvmvg device file still

exists.

Recommended Action:

a. List the LVM group files. If there are any duplicate minor numbers, export one of the affected

volume groups, create a new group file with a unique minor number, and re-import the volume

group. If you are not familiar with this process, contact your HP support representative for

assistance.

# ll /dev/*/group

# vgexport -m vgname.map -v -f vgname.file /dev/vgname

# mkdir /dev/vgname

# mknod /dev/vgname/group c 64 unique_minor_number

# vgimport -m vgname.map -v -f vgname.file /dev/vgname

b. Remove the /dev/slvmvg device file and recreate the /etc/lvmtab file using the following

commands:

# rm /dev/slvmvg

# mv /etc/lvmtab /etc/lvmtab.old

# vgscan –v

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Seagate ST34572WC Specifications Page 33

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