Before you perform the installation, verify that you have root permissions on the Agent Host.
1. Create Volume Group
Note: the following example is using the disk c1t6d0, the volume group vg01, the logical volume lvtest, and mount point /test
1.1 Identify the disks to be used for LVM
# ioscan -nfC disk
1.2 Create a LVM data structure on each identified disk
# pvcreate /dev/rdsk/c1t6d0
Note: if the disk was previously used in another VG, use the following command instead:
# pvcreate -f /dev/rdsk/ c1t6d0
1.3 Collect all the physical volumes to form a new volume group
1.3.1 Go to dev directory (/dev)
# cd /dev
1.3.2 Create VG name
# mkdir vg01
1.3.3 Make directory and special file in VG
# mknod /dev/vg01/group c 64 0×010000
Note: the group number (last parameter – 0×010000 ) is in hexadecimal and should be different for each volume group
1.3.4 Create the volume group
# vgcreate -s [pe_size] -e [max_pe] /dev/vg01 /dev/dsk/ c1t6d0
Note: when a volume group is created without define pe_size and max_pe parameter, the maximum physical extents per volume (max_pe) will be set to the max_pe of the largest physical volume (PV). The effect of not setting the max_pe parameter would be that any PV added to the volume group in the future regardless of there size will be limited to the volume groug creation value of max_pe. Therefore, consider increasing the max_pe to accommodate PV’s that may likely be larger than the largest PV used to create the Volume Group. The formula to use to determine the value is:
physical_extent_size * max_pe = size_of_the_disk.
The default value for physical_extent_size is 4 MB and the maximum value for max_pe is 65535 Read the rest of this entry »
