Redhat挂新磁盘

#ll /dev/disk/by-path

列一下磁盘

#fdisk /dev/sdb

:d

:1(或者2)

:w

删除磁盘上的分区

#pvcreate /dev/sdb 

挂上sdb

#vgdisplay

查看vgname

#vgextend rootvg(vgname) /dev/sdb

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

#resize2fs  /dev/mapper/rootvg-lv_opt 

把sdb挂载到/dev/mapper/rootvg-lv_opt 下

 

#df -ha

验证一下

 

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转载自phipray.iteye.com/blog/2406432