Refer to this table to determine which option is appropriate for your use case.
| Action / Effect | Scale Up1 | Scale Down1 | Scale Out2 | Scale In2 |
|---|---|---|---|---|
|
Decrease CPU count
Decreases performance |
● | ● | ||
|
Decrease memory size
Decreases performance |
● | ● | ||
|
Decrease storage bandwidth of VMs
Increases data disks managed per VM |
● | ● | ||
|
Increase CPU count
Increases performance |
● | ● | ||
|
Increase memory size
Increases performance |
● | ● | ||
|
Increase storage bandwidth of VMs
Decreases data disks managed per VM |
● | ● | ||
|
Increase VM count
Changes infrastructure and software costs |
● | |||
|
Replace VMs
Redistributes premium data disks across VMs |
● | |||
|
||||
For more information, see the Orange Book, Elasticity in the Teradata® Database, TDN-0009703. To find an Orange Book, go to https://access.teradata.com, log in, and search for the book title.