After you have finished creating the volume group, follow these steps to create a new logical volume.

# /sbin/lvcreate -L 50 /dev/vgName (if this is your first logical volume in vgName volume group then it will by default create “lvol1″)

If you want to give a logical volume your own cusmtom name then just follow this -

# /sbin/lvcreate -L 50 -n lvName /dev/vgName

After you have finished creating your logical volume, you have now create a file system on the raw logical volume - you should see “rlvName” and lvName” file

# /sbin/newfs -F vxfs /dev/vgName/rlvName – this will create a vxfs file system. If you don’t specify “-F vxfs” flag then the system will pickup the default file system type from “/etc/default/fs” file. I generally like to specify the file system type manually.

To verify the logical volume you have created – (the output will be similar)

# /sbin/lvdisplay -v /dev/vgName/lvName

— Logical volumes —
LV Name                     /dev/vgName/lvName
VG Name                     /dev/vgName
LV Permission               read/write
LV Status                   available/syncd
Mirror copies               1
Consistency Recovery        MWC
Schedule                    parallel
LV Size (Mbytes)            512
Current LE                  16
Allocated PE                32
Stripes                     0
Stripe Size (Kbytes)        0
Bad block                   on
Allocation                  strict
IO Timeout (Seconds)        default

   — Distribution of logical volume —
   PV Name            LE on PV  PE on PV
   /dev/dsk/cXtXdX   16        16

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If you want to create a new volume group, make sure you have minumum one physical device available.

1) Login in to the system as “root” (or equivalent to “root” that allows you to do system admin tasks)

# /sbin/pvcreate /dev/rsk/cXtXdX (X is the controller, target and device number – “ioscan” will give you this information)

# /sbin/mkdir /dev/vgNAME (you can give whatever name you like)

# /sbin/mknod /dev/vgNAME/group c 64 0×0X0000 (make sure you have a ”UNIQUE” minor number for each volume group)

# /sbin/vgcreate /dev/vgNAME /dev/dsk/cXtXdX  (if you have more than one device to add in the volume group you can define them all in one line, don’t forget to add “/dev/dsk/cXtXdX)

#/sbin/vgdisplay /dev/vgNAME (display your newly created volume group)

# /sbin/vgdisplay -v /dev/vgNAME (display your newly created volume group with detail info)

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