Redhat hangs new disk

#ll /dev/disk/by-path

list the disks

#fdisk /dev/sdb

:d

:1 (or 2)

:w

delete partitions on disk

#pvcreate /dev/sdb 

hang sdb

#vgdisplay

view vgname

#vgextend rootvg(vgname) /dev/sdb

#lvextend -L190G /dev/mapper/rootvg-lv_opt

#resize2fs  /dev/mapper/rootvg-lv_opt 

Mount sdb to /dev/mapper/rootvg-lv_opt

 

#df -ha

verify