# VolumeUpdateParameters
## Properties
**iops** | Option<**i32**> | The new number of I/O operations per second (IOPS):<br /> - For `io1` volumes, the number of provisioned IOPS.<br /> - For `gp2` volumes, the baseline performance of the volume. |
**size** | **i32** | The new size of the volume, in gibibytes (GiB). |
**volume_type** | **String** | The type of the volume (`standard` \\| `io1` \\| `gp2`). |
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