gistfile1.txt

OpenStack Hardware Requirement:

1. Compute: Is Compute nodes (runs virtual instances).
    Processor: 64-bit x86  with 2 CPU 12 cores    
    Memory: 32 GB RAM   
    Disk space: 600 GB * 3 (SAS)   
    Network: Two 10 GB NICs
  
  With 2 GB RAM you can run one m1.small instance on a node or three m1.tiny instances without memory swapping.
  Specifically for virtualization on certain hypervisors (mostly KVM, Xen) on the node or nodes running nova-compute,
  we need a x86 machine with an AMD processor with SVM extensions (also called AMD-V) or an Intel processor with VT (virtualization technology) extensions.   
 
2. Controller node and Storage: (runs network, volume, API, scheduler, database and image services)
    Processor: 64-bit x86 2 CPU with 12 Cores
    Memory: 32 GB RAM
    Disk space: 600GB * 2 (SAS)
    Volume storage: Two disks with 2 TB (SAS) for volumes attached to the compute nodes
    Network: One 10 GB Network Interface Card.
 
On this instance Network,Database,Instance storage(volume) these all thing seat together. We can add another instance for dedicated for storage instance( Where we can install SAN or NFS).

Above all thing should be expandable.