Not enough spare disk

[DBARAJAS123]

A hard drive failed and we replaced it with, but we continue to get:

"There are not enough spare disks. /aggr3/plex0/rg0: Please add spare disks supporting block checksums with minimum size: Used 4"

When it was placed in the the netapp, the disk had a bad label, which I unfailed it and then zero'd it.

I'm fairly new to this, any suggestions would be helpful.