1. Partial output of lvdisplay on a Logical Volume Manager (LVM) striped logical volume:
--- Logical volumes ---
LV Name /dev/vg01/lvol1
VG Name /dev/vg01
LV Permission read/write
LV Status available/syncd
Mirror copies 0
Consistency Recovery MWC
Schedule striped
LV Size (Mbytes) 1008
Current LE 252
Allocated PE 252
Stripes 3
Stripe Size (Kbytes) 64
Bad block on
Allocation strict
IO Timeout (Seconds) default
--- Distribution of logical volume ---
PV Name LE on PV PE on PV
/dev/dsk/c7t1d0 84 84
/dev/dsk/c7t2d0 84 84
/dev/dsk/c7t4d0 84 84
2. Unmount all file systems
3. Run vxvmconvert and select option 1, Analyze LVM Volume Groups for Conversion:
# vxvmconvert
Volume Manager Support Operations
Menu: VolumeManager/LVM_Conversion
1 Analyze LVM Volume Groups for Conversion
2 Convert LVM Volume Groups to VxVM
3 Roll back from VxVM to LVM
list List disk information
listvg List LVM Volume Group information
? Display help about menu
?? Display help about the menuing system
q Exit from menus
Select an operation to perform: 1
Analyze one or more LVM Volume Groups
Menu: VolumeManager/LVM_Conversion/Analyze_LVM_VGs
Use this operation to analyze one or more LVM Volume Groups for possible conversion to VxVM disk groups. This operation checks for problems that would prevent the conversion from completing successfully. For example, it calculates the space required to add an LVM Volume Group's disk's to a VxVM disk group and to replace any existing LVM partitions and volumes with VxVM Volume Manager volumes, plexes, and sub-disks.
For this release, conversion is only allowed for Non-root LVM Volume Groups. Hence, analysis is only allowed on Non-root LVM Volume Groups.
More than one Volume Group or pattern may be entered at the prompt.
Here are some LVM Volume Group selection examples:
all: analyze all LVM Volume Groups (all except Root VG)
listvg: list all LVM Volume Groups
list: list all disk devices
vg_name: a single LVM Volume Group, named vg_name
<pattern>: for example: vg04 vg09 vg08
Select Volume Groups to analyze :
[<pattern-list>,all,list,listvg,q,?] vg01
vg01
Analyze this Volume Group? [y,n,q,?] (default: y)
The following disks have been found in the volume group and will be analyzed for VxVM conversion.
c7t1d0 c7t2d0 c7t4d0
To allow analysis, a new VxVM disk group, dg01, will be fabricated and the disk device c7t1d0 will be added to the disk group with the disk name dg0101.
The c7t1d0 disk has been analyzed and prepared for conversion.
To allow analysis, a new VxVM disk group, dg01, will be fabricated and the disk device c7t2d0 will be added to the disk group with the disk name dg0102.
The c7t2d0 disk has been analyzed and prepared for conversion.
To allow analysis, a new VxVM disk group, dg01, will be fabricated and the disk device c7t4d0 will be added to the disk group with the disk name dg0103.
The c7t4d0 disk has been analyzed and prepared for conversion.
The first stage of the Analysis process completed successfully.
Second Stage Conversion Analysis of vg01
Analysis of vg01 found sufficient Private Space for conversion
Conversion Analysis of the following devices was successful.
c7t1d0 c7t2d0 c7t4d0
Hit RETURN to continue.
Volume Group Analysis Completed
Hit RETURN to continue.
4. Now select option 2, Convert LVM Volume Groups to VxVM:
Volume Manager Support Operations
Menu: VolumeManager/LVM_Conversion
1 Analyze LVM Volume Groups for Conversion
2 Convert LVM Volume Groups to VxVM
3 Roll back from VxVM to LVM
list List disk information
listvg List LVM Volume Group information
? Display help about menu
?? Display help about the menuing system
q Exit from menus
Select an operation to perform: 2
Convert one or more LVM Volume Groups
Menu: VolumeManager/LVM_Conversion/Convert_LVM_VGs
Use this operation to convert LVM Volume Groups to VxVM disk groups.
This adds the disks to a disk group and replaces existing LVM volumes with VxVM volumes. LVM-VxVM Volume Group conversion may require a reboot for the changes to take effect. For this release, only Non- root LVM Volume Groups can be converted.
More than one Volume Group or pattern may be entered at the prompt.
Here are some LVM Volume Group selection examples:
all: convert all LVM Volume Groups (all except Root VG)
listvg: list all LVM Volume Groups
list: list all disk devices
vg_name: a single LVM Volume Group, named vg_name
<pattern>: for example: vg04 vg08 vg09
Select Volume Groups to convert :
[<pattern-list>,all,list,listvg,q,?] vg01
vg01
Convert this Volume Group? [y,n,q,?] (default: y)
Specify a name for the new VxVM disk group (default: dg01) EMCdg
The following disks have been found in the vg01 volume group and will be configured for conversion to VxVM disk groups.
c7t1d0 c7t2d0 c7t4d0
A new disk group EMCdg will be created and the disk device c7t1d0 will be converted and added to the disk group with the disk name EMCdg01.
The c7t1d0 disk has been analyzed and prepared for conversion.
A new disk group EMCdg will be created and the disk device c7t2d0 will be converted and added to the disk group with the disk name EMCdg02.
The c7t2d0 disk has been analyzed and prepared for conversion.
A new disk group EMCdg will be created and the disk device c7t4d0 will be converted and added to the disk group with the disk name EMCdg03.
The c7t4d0 disk has been analyzed and prepared for conversion.
The first stage of the conversion operation has completed successfully. If you commit to the changes hereafter, the system
will attempt to umount all of the associated file systems, stop and export each Volume Group, and then attempt to complete the conversion without having to reboot the system. If we are unable to stop and export any of the Volume Groups, then the conversion process will not be able to complete without a reboot. You would then be given the choice to either abort the conversion, or finish the conversion by rebooting the system.
The conversion process will update the /etc/fstab file so that volume devices are used to mount the file systems on this disk device. You will need to update any other references such as backup scripts, databases, or manually created swap devices. If you do not like the default names chosen for the corresponding logical volumes, you may change these to whatever you like using vxedit.
Second Stage Conversion Analysis of vg01
Analysis of vg01 found sufficient Private Space for conversion
Conversion Analysis of the following devices was successful.
c7t1d0 c7t2d0 c7t4d0
Hit RETURN to continue.
Are you ready to commit to these changes? [y,n,q,?] (default: y) y
Saving LVM configuration records for Volume Group vg01 ...
LVM Volume Group vg01 records saved.
Unmounting vg01 file systems...
The Volume Manager is now reconfiguring (partition phase)...
Volume Manager: Initializing c7t1d0 as a converted LVM disk.
Volume Manager: Initializing c7t2d0 as a converted LVM disk.
Volume Manager: Initializing c7t4d0 as a converted LVM disk.
Volume Manager: Reconfiguration will be done without rebooting.
The Volume Manager is now reconfiguring (initialization phase)...
Volume Manager: Adding EMCdg01 (c7t1d0) as a converted LVM disk.
Volume Manager: Adding EMCdg02 (c7t2d0) as a converted LVM disk.
Volume Manager: Adding EMCdg03 (c7t4d0) as a converted LVM disk.
Adding volumes for c7t1d0...
Starting new volumes...
Updating /etc/fstab...
Volume Manager: Converting LVM Volume Groups to VxVM disk groups.
Convert other LVM Volume Groups? [y,n,q,?] (default: n)
5. Now /etc/fstab has been updated:
# more /etc/fstab:
# System /etc/fstab file. Static information about the file systems
# See fstab(4) and sam(1M) for further details on configuring devices.
/dev/vg00/lvol3 / vxfs delaylog 0 1
/dev/vg00/lvol1 /stand hfs defaults 0 1
/dev/vg00/lvol4 /opt vxfs delaylog 0 2
/dev/vg00/lvol5 /tmp vxfs delaylog 0 2
/dev/vg00/lvol6 /usr vxfs delaylog 0 2
/dev/vg00/lvol7 /var vxfs delaylog 0 2
/dev/vg00/lvol8 /home vxfs delaylog 0 2
/dev/vx/dsk/EMCdg/lvol1 /data1 vxfs delaylog 0 2
#NOTE: volume lvol1 (/data1) converted LVM volume vg01/lvol1
6. Make sure all volumes of the newly converted disk group are enabled/active:
# vxprint -g EMCdg -ht
dg EMCdg default default 6747000 1058980812.1057.cshp7
dm EMCdg01 c7t1d0 simple 896 4191976 -
dm EMCdg02 c7t2d0 simple 896 4193133 -
dm EMCdg03 c7t4d0 simple 896 4193133 -
v lvol1 - ENABLED ACTIVE 1032192 fsgen - ROUND
pl lvol1-01 lvol1 ENABLED ACTIVE 1032192 STRIPE 3/64 RW
sd EMCdg01-03 lvol1-01 EMCdg01 0 344064 0/0 c7t1d0 ENA
sd EMCdg02-03 lvol1-01 EMCdg02 0 344064 1/0 c7t2d0 ENA
sd EMCdg03-03 lvol1-01 EMCdg03 0 344064 2/0 c7t4d0 ENA
7. Mount all file systems:
# mountall
8. Make sure the file systems are mounted correctly:
# bdf
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol3 204800 49712 153880 24% /
/dev/vg00/lvol1 295024 42976 222544 16% /stand
/dev/vg00/lvol7 1331200 567952 758424 43% /var
/dev/vg00/lvol6 1290240 688552 597016 54% /usr
/dev/vg00/lvol5 204800 2336 200888 1% /tmp
/dev/vg00/lvol4 1433600 132688 1290776 9% /opt
/dev/vg00/lvol8 20480 2280 18072 11% /home
/dev/vx/dsk/EMCdg/lvol3
417792 1205 390558 0% /data3
