Volume Specifications
In OpenStack, “volumes” are persistent storage that you can attach to your running OpenStack Compute instances to. In Optimist we have set up three classes of service for volumes. These have different limits, which are detailed below.
Volume Types
We have three main volume types:
- high-iops
- default
- low-iops
Volume Type List
An overview of the three volume types below:
| Name | Read Bytes Sec | Read IOPS Sec | Write Bytes Sec | Write IOPS Sec |
|---|---|---|---|---|
| high-iops | 524288000 | 10000 | 524288000 | 10000 |
| default | 209715200 | 2500 | 209715200 | 2500 |
| low-iops | 52428800 | 300 | 52428800 | 300 |
Choosing a Volume Type
You can select one of the three volume types upon creation of a volume with the following command (Unless otherwise specified, the type “default” is always used): $ openstack volume create <volume-name> --size 10 --type high-iops