If your NetApp system has experienced a predictive disk failure and you would like to learn the disk rebuild timelines, then the following procedure might be of help for you.
Login to the NetApp Controller via CLI.
1) login to the diag mode.
::> set diag
Login to the NetApp Controller via CLI.
1) login to the diag mode.
::> set diag
2) ::*> event log show -message-name raid.rg.disk*