docs/content/en/reference/azkfilejs/scalable.md
## scalable
Defines how many instances of the system should be started.
#### Usage:
```js
scalable: { default: NUM, limit: NUM },
```
##### Examples:
* (__default__) One instance by default, and limited only one:
```js
scalable: { default: 1, limit: 1 },
```
* No instances by default, that is, will not be started by the `azk start`:
```js
scalable: { default: 0 },
```
* Only one instance:
```js
scalable: { default: 1 },
```
* Four instances by default:
```js
scalable: { default: 4 },
```