认识DRDB并应用-3：使用大硬盘

更换硬盘后drbd状态显示为UnConfigured

Linux缺省vmalloc为128MB

因为1TB的硬盘，drbd要32M的vmalloc,4T要128MB，其它程序可能还要占用vmalloc，所以超过4T的话需要修改/boot/grub/menu.lst，增加vmalloc为256M

## ## End Default Options ##

title           Debian GNU/Linux, kernel 2.6.26-2-686
root            (hd0,0)
kernel          /boot/vmlinuz-2.6.26-2-686 root=/dev/sda1 ro quiet vmalloc=256M
initrd          /boot/initrd.img-2.6.26-2-686

title           Debian GNU/Linux, kernel 2.6.26-2-686 (single-user mode)
root            (hd0,0)
kernel          /boot/vmlinuz-2.6.26-2-686 root=/dev/sda1 ro single
initrd          /boot/initrd.img-2.6.26-2-686

title           Debian GNU/Linux, kernel 2.6.26-1-686
root            (hd0,0)
kernel          /boot/vmlinuz-2.6.26-1-686 root=/dev/sda1 ro quiet
initrd          /boot/initrd.img-2.6.26-1-686

title           Debian GNU/Linux, kernel 2.6.26-1-686 (single-user mode)
root            (hd0,0)
kernel          /boot/vmlinuz-2.6.26-1-686 root=/dev/sda1 ro single
initrd          /boot/initrd.img-2.6.26-1-686

### END DEBIAN AUTOMAGIC KERNELS LIST

重新启动系统