adding storage
-16 volumes per node
-existing volumes cannot be grown

Maximums
200 nodes
16 sites
10.000 tenants
400PB
Node 48 volumes
Volumesize 39 tb

Appliance Storage Nodes can have up to 48 storage volumes.
Software Storage Nodes can have up to 16 storage volumes and up to 39TB per volume.
Each storage volume is mounted to astorage device:/var/local/rangedb/
The object metadata database is stored in storage volume 0.

adding nodes
-admin_nodes
-storage_nodes
-archive_nodes
-api_gateway_nodes

datacenter sites
-minimum of three storage nodes
-adding new sites does not increase the number of objects
-to increase the max number of objects, increase the number of nodes per site

admin nodes
-one admin node per site best practice and limit
-one primary admin node per grid

gateway nodes
-optional per site
-loadbalance

storage nodes
-minimum 3 per site
-Administrative DC service on first three nodes per site

archive node
-Tivoly storage manager