谁能做个实验，d到底行不行？

ydar

After powering up a system.a system admin notices that he neglected to power on one of the external disks and now hdisk3 show as defined rather than "available",which of the following commands can be used to bring this drive to the "available" state?
a. cfgmgr -v
b. chattr -l hdisk3 available
c. mkdev -d "/dev/hdisk3=available"
d. chdev -l /dev/hdisk3 -a "state=available"

ifx

a:应该可以
b:无此命令
c:语法错
d:没有这类属性