AIX hard disk failure

Hi all,

I have encountered the issue with the hard disk, the disk is failed and need to replace by the new one.

As my understanding, this is just to take out the failed disk and insert the new ones, and that's all.

But the third party hardware vendor said, there should be another procedure in AIX for this activity.
I have attached the screenshot for disk checking.

Please advise if I miss something.

Attached Thumbnails