Always shutdown TD database before powering off, rebooting, or shutting down Linux on AWS/Azure/TDVM
Teradata on Amazon Web Services (AWS),Teradata on Azure,Teradata on VMWare
It is very important to shutdown the database on teradata (tpareset -x comment) before powering off, rebooting, or shutting down Linux on AWS/Azure/TDVM/Physical Systems. Failure to do so can lead to many problems including:
NFR (Node Failure Recovery) nodes automatically starting up similar to HSN (Hot Standby Nodes) on physical systems.
Ghost or phantom nodes joining the database configuration
Data loss / Data Corruption
Billable charges by Teradata to recover data
Teradata on AWS (Amazon Web Service)
Teradata on Azure (Microsoft Cloud)
TDVM (Teradata on VMWARE) Teradata physical hardware
Before powering down or rebooting any nodes from any GUI (Graphical User Interface), ssh to one of your Teradata nodes, switch to user root (sudo su -) and issue a tpareset -x comment.
# /usr/pde/bin/tpareset -x Shutting down Teradata for maintenance
Usually with-in a minute or so the database should show that it is down (DOWN/HARDSTOP state). Here is how to check: