assembly – 2 discs as a volume in centos

[root@www dev]# lvmdiskscan
/ dev / sda1 [     <68.36 GiB]
  / dev / sda2 [     511.00 MiB]
  / dev / sda3 [     296.28 GiB] Physical volume LVM
/ dev / sdb1 [      19.53 GiB]
  / dev / sdb2 [    <427.10 GiB] Physical volume LVM
0 discs
3 partitions
0 integer disks of physical volume LVM
2 physical volumes of LVM


[root@www /]# vgdisplay
--- volume group ---
VG Name zimbra
System ID
Format lvm2
Metadata areas 2
Sequence metadata no 2
Access / reading VG
VG status resizable
MAX LV 0
Cur LV 0
Open LV 0
Maximum PV 0
Curv PV 2
Law PV 2
Size VG <723.38 GiB
Size PE 4.00 MiB
Total PE 185184
Assign PE / Size 0/0
Free PE / Size 185184 / <723.38 GiB
VG UUID rcQvUV-g29r-OC0i-rSmD-flx7-WNMy-q8u0kc

How can I combine them and mount them as one or be mounted in / opt / zimbra /

because I will need it to install zimbra os