Snowflake · Schema

ExternalVolume

A Snowflake external volume

Data LakesData SharingData WarehousingDatabaseSQL

Properties

Name	Type	Description
name	string	String that specifies the identifier (the name) for the external volume; must be unique in your account.
storage_locations	array	Set of named cloud storage locations in different regions and, optionally, cloud platforms.
allow_writes	boolean	Specifies whether write operations are allowed for the external volume; must be set to TRUE for Iceberg tables that use Snowflake as the catalog.
comment	string	String (literal) that specifies a comment for the external volume.
created_on	string	Date and time when the external volume was created.
owner	string	Role that owns the external volume
owner_role_type	string	The type of role that owns the external volume

View JSON Schema on GitHub

JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/ExternalVolume",
  "title": "ExternalVolume",
  "type": "object",
  "description": "A Snowflake external volume",
  "properties": {
    "name": {
      "type": "string",
      "pattern": "^\"([^\"]|\"\")+\"|[a-zA-Z_][a-zA-Z0-9_$]*$",
      "description": "String that specifies the identifier (the name) for the external volume; must be unique in your account.",
      "example": "Example Title"
    },
    "storage_locations": {
      "type": "array",
      "items": {
        "$ref": "#/components/schemas/StorageLocation"
      },
      "description": "Set of named cloud storage locations in different regions and, optionally, cloud platforms.",
      "example": []
    },
    "allow_writes": {
      "type": "boolean",
      "description": "Specifies whether write operations are allowed for the external volume; must be set to TRUE for Iceberg tables that use Snowflake as the catalog.",
      "example": true
    },
    "comment": {
      "type": "string",
      "description": "String (literal) that specifies a comment for the external volume.",
      "example": "example_value"
    },
    "created_on": {
      "type": "string",
      "format": "date-time",
      "readOnly": true,
      "description": "Date and time when the external volume was created.",
      "example": "2026-01-15T10:30:00Z"
    },
    "owner": {
      "type": "string",
      "pattern": "^\"([^\"]|\"\")+\"|[a-zA-Z_][a-zA-Z0-9_$]*$",
      "readOnly": true,
      "description": "Role that owns the external volume",
      "example": "example_value"
    },
    "owner_role_type": {
      "type": "string",
      "pattern": "^\"([^\"]|\"\")+\"|[a-zA-Z_][a-zA-Z0-9_$]*$",
      "readOnly": true,
      "description": "The type of role that owns the external volume",
      "example": "example_value"
    }
  },
  "required": [
    "name",
    "storage_locations"
  ]
}