Update documentation

docs/core-functionality/sites-and-racks.md

@@ -1,11 +1,11 @@
 # Sites and Racks
 
-{!docs/models/dcim/site.md!}
 {!docs/models/dcim/region.md!}
+{!docs/models/dcim/site.md!}
+{!docs/models/dcim/location.md!}
 
 ---
 
 {!docs/models/dcim/rack.md!}
-{!docs/models/dcim/rackgroup.md!}
 {!docs/models/dcim/rackrole.md!}
 {!docs/models/dcim/rackreservation.md!}

docs/models/dcim/device.md

@@ -8,7 +8,7 @@ A device is said to be full-depth if its installation on one rack face prevents
 
 Each device must be instantiated from a pre-created device type, and its default components (console ports, power ports, interfaces, etc.) will be created automatically. (The device type associated with a device may be changed after its creation, however its components will not be updated retroactively.)
 
-Each device must be assigned a site, device role, and operational status, and may optionally be assigned to a specific rack within a site. A platform, serial number, and asset tag may optionally be assigned to each device.
+Each device must be assigned a site, device role, and operational status, and may optionally be assigned to a specific location and/or within a site. A platform, serial number, and asset tag may optionally be assigned to each device.
 
 Device names must be unique within a site, unless the device has been assigned to a tenant. Devices may also be unnamed.
 

docs/models/dcim/location.md

@@ -0,0 +1,5 @@
+# Locations
+
+Racks and devices can be grouped by location within a site. A location may represent a floor, room, cage, or similar concept. Locations can be nested to form a hierarchy. For example, you may have floors within a site, and rooms within a floor.
+
+The name and facility ID of each rack within a location must be unique. (Racks not assigned to the same location may have identical names and/or facility IDs.)

docs/models/dcim/powerpanel.md

@@ -2,7 +2,7 @@
 
 A power panel represents the origin point in NetBox for electrical power being disseminated by one or more power feeds. In a data center environment, one power panel often serves a group of racks, with an individual power feed extending to each rack, though this is not always the case. It is common to have two sets of panels and feeds arranged in parallel to provide redundant power to each rack.
 
-Each power panel must be assigned to a site, and may optionally be assigned to a particular rack group.
+Each power panel must be assigned to a site, and may optionally be assigned to a particular location within that site.
 
 !!! note
     NetBox does not model the mechanism by which power is delivered to a power panel. Power panels define the root level of the power distribution hierarchy in NetBox.

docs/models/dcim/rack.md

@@ -1,6 +1,6 @@
 # Racks
 
-The rack model represents a physical two- or four-post equipment rack in which devices can be installed. Each rack must be assigned to a site, and may optionally be assigned to a rack group and/or tenant. Racks can also be organized by user-defined functional roles.
+The rack model represents a physical two- or four-post equipment rack in which devices can be installed. Each rack must be assigned to a site, and may optionally be assigned to a location and/or tenant. Racks can also be organized by user-defined functional roles.
 
 Rack height is measured in *rack units* (U); racks are commonly between 42U and 48U tall, but NetBox allows you to define racks of arbitrary height. A toggle is provided to indicate whether rack units are in ascending (from the ground up) or descending order.
 

docs/models/dcim/rackgroup.md

@@ -1,7 +0,0 @@
-# Rack Groups
-
-Racks can be organized into groups, which can be nested into themselves similar to regions. As with sites, how you choose to designate rack groups will depend on the nature of your organization. For example, if each site represents a campus, each group might represent a building within a campus. If each site represents a building, each rack group might equate to a floor or room.
-
-Each rack group must be assigned to a parent site, and rack groups may optionally be nested within a site to model a multi-level hierarchy. For example, you might have a tier of rooms beneath a tier of floors, all belonging to the same parent building (site).
-
-The name and facility ID of each rack within a group must be unique. (Racks not assigned to the same rack group may have identical names and/or facility IDs.)