I currently have a Google Compute Engine VM located in Zone us-central1-a. I want to purchase a Committed Use Discount for this VM, but when I visit the signup page, there is no option for us-central1-a, the closest being us-central1.
Will it be necessary for me to move the instance to us-central1 using the information here, or will the purchase of a commitment in us-central1 automatically apply to a VM located in us-central1-a?
Since I plan to make a 3-year commitment, I don't want to make a mistake because I have heard stories about the lack of support from GCP.
us-central1 is the region. us-central1-a is a zone within that region. Committed use discounts are per region.
Committed use discounts work on most Compute Engine machine types, including predefined and custom machine types. Committed use discounts are simple and flexible, and require no upfront costs. Discounts apply to the aggregate number of vCPUs, memory, GPUs, and local SSDs within a region, so they are not affected by changes to your instance's machine setup.