Elastic Volume Service (EVS)
EVS is flexible disk provisioning for Elastic Cloud Server (EVS). Use this for production deployments where needed, so that the disk space can flexibly expanded. This prevents the need for compute migrations that cause more overhead.
EVS Setup
- Go to the EVS portal
- "Create disk"
- Choose the region of your destination server (for optimal performance)
- Choose "General Purpose SSD"
- Choose somewhere between 10-25GB
- Encrypt the volume according to the threat model (if unknown,
evs/default) - Optional: Add informative tags (for example,
libscie=sso) - Give an informative name (for example,
org.libscie.gitfor the service onhttps://git.libscie.org)
We recommend using one EVS per production service, to allow for compartmentalization of disks per service. Services may be on the same server at this time, but that is not a guarantee it will remain so.
Note that disk space can be expanded at any time in the future, so if you are unsure about your needs, pick 25GB to start.
Attaching EVS to ECS
Upon creation of your EVS, it will need to be attached to be useful.