When Teradata storage problems exist due to multiple disk drive failures, a series of manual steps are required to repair the storage. The procedures for recovering failed storage on Teradata arrays are basically the same for all disk array types.
In order to recover storage, you must determine the affected nodes, disk arrays, and pdisk global links. You must also find the storage parameters of the failing drive group which consist of things like Volume number, LUN number, RAID level, segment size, the number of slices, and the physical disks. Once the failed disks are replaced and the failed LUN deleted (if necessary), you will recreate and slice the LUN. You can then create the global pdisk links for each slice on every node to complete the manual storage recovery.
Rebuilding the AMP and reloading data are not covered in PUT documentation. Use the Table Rebuild Utility to reload your data.