dell服务器centos系统磁盘大于16T时的操作

1. 配置好IP后设置网关

   [root@localhost opt]# route  add -net default gw 网关IP地址

2. yum安装基本环境

   [root@localhost opt]# yum -y install automake autoconf libtool make texinfo-tex gcc-c++ gcc

3. 安装工具

   注意：如果要更新系统版本，请先`yum update`，再安装工具，不然可能会导致系统无法启动

   [root@localhost opt]# wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net/project/e2fsprogs/e2fsprogs/v1.42.7/e2fsprogs-1.42.7.tar.gz?r=http%3A%2F%2Fe2fsprogs.sourceforge.net%2F&ts=1361548232&use_mirror=superb-dca3
   [root@localhost opt]# tar -zxf e2fsprogs-1.42.7.tar.gz 
   [root@localhost opt]# cd e2fsprogs-1.42.7
   [root@localhost e2fsprogs-1.42.7]# ./configure 
   [root@localhost e2fsprogs-1.42.7]# make 
   [root@localhost e2fsprogs-1.42.7]# make install

4. 重新设置磁盘大小（假设home为要做的最大逻辑卷）

   [root@localhost e2fsprogs-1.42.7]# umount /home/
   [root@localhost e2fsprogs-1.42.7]# vgdisplay 
   [root@localhost e2fsprogs-1.42.7]# lvdisplay 
   [root@localhost e2fsprogs-1.42.7]# lvextend -L +13T /dev/vg_hy/lv_home 
     Extending logical volume lv_home to 29.01 TiB
     Logical volume lv_home successfully resized
   [root@localhost e2fsprogs-1.42.7]#  mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304  /dev/mapper/vg_hy-lv_home
   [root@localhost e2fsprogs-1.42.7]# mount /dev/mapper/vg_hy-lv_home /home
   [root@localhost e2fsprogs-1.42.7]# df -h
   Filesystem            Size  Used Avail Use% Mounted on
   /dev/mapper/vg_hy103023-lv_root
                          50G  1.4G   46G   3% /
   tmpfs                 127G     0  127G   0% /dev/shm
   /dev/sda1             485M   37M  423M   8% /boot
   /dev/mapper/vg_hy103023-lv_home
                          30T  233M   28T   1% /home