# Introduction

## Audience

This document is intended for Zadara Private Cloud administrators and
assumes access permissions for the Cloud management applications.

## Zadara Storage Command Center

### Overview

Zadara Storage Cloud was architectured from the ground up to build the first
“Enterprise-Storage-as-a-Service Data Storage System for the Cloud” with
the following key targets:

- Enterprise quality, resilient, highly available, consistent performance storage for the most demanding data center application workloads
- Consumed as a Service - flexible, dynamic and billable
- Scale out - grow to hundreds of Storage Nodes, thousands of drives and multi-Petabyte Storage
- True Multi-tenancy - End-user controlled privacy and security. Separate workloads, resource allocation,
  and management per tenant, such that each tenant truly experiences “no noisy neighbors” secure storage.
- Universal Storage - Supports all data services on one common infrastructure: Block, File, Object

Zadara Command Center is a centralized point of management and monitoring for the Zadara Storage Cloud.
Command Center enables Administrators to:

- Extract detailed information regarding cloud elements such as : VPSA instances , Storage Nodes , disk drives and software images
- Define global cloud level polices that impact all underlying tenants
- Monitor cloud resources utilization and health from a single pane of glass
- Maintain cloud infrastructure and control software images available for tenants
- Perform management and maintenance operations on Virtual Private Storage Array instances defined on the cloud
- Manage cloud expansions - adding storage nodes and disk drives
- Manage cloud roles and users
- Manage cloud level license-keys
- View a detailed central log of all cloud elements

### Terminology

| Item                            | Description                                                                                                                                                                                                                                           |
|---------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| SN                              | Storage Node.<br/><br/>Commodity server with a large number of CPU cores<br/>(typically 16 or more ) and large RAM (typically 64GB or more),<br/>connected to a 40GbE/100GbE data network with Intel/NVIDIA SRIOV NICs<br/>and 1Gb management network |
| VPSA                            | Virtual Private Storage Array.<br/><br/>A redundant and Highly Available<br/>Software Defined Storage (SDS) that has all resources (CPU, memory,<br/>network, disks) provisioned entirely for itself, thereby providing<br/>consistent QoS storage    |
| Object Storage                  | Redundant, Durable, Private and Highly Available<br/>virtual object store cluster that has provisioned resources<br/>(CPU, memory, network, disks)                                                                                                    |
| VC                              | Virtual Controller.<br/><br/>A Virtual Machine running Zadara Storage IO stack.<br/>Two VC’s are paired together in High-Availability configuration to<br/>form a VPSA.                                                                               |
| Provisioning Portal (eCommerce) | The web application portal for the end-users to create VPSA’s/<br/>Object Storage and provisioning their resources (Drives, IO Engines,<br/>Flash Cache etc). Pricing and Billing are also managed via the<br/>Provisioning Portal.                   |
| Cloud Controller (CC)           | Set of software components that manages the storage cloud (like<br/>allocating resources for VPSA/Object Storage with intelligent scheduler,<br/>monitoring, and provisioning networking/storage for VPSA/Object Storage etc.)                        |
| Command Center                  | The Web Application for the Cloud Administrator to monitor and maintain<br/>the Zadara Cloud (inventory management, maintenance operations etc.)                                                                                                      |
| CCVM                            | A system Virtual Machine within the Zadara Cloud which runs the<br/>Command Center and the Provisioning Portal                                                                                                                                        |
| FE Network/Data Network         | Front-End network.<br/><br/>40GbE/100GbE network through which Application<br/>Servers can connect to Zadara VPSA Storage for IO and Control                                                                                                          |
| BE Network                      | Back-End network.<br/><br/>40GbE/100GbE network through which SNs and VPSA<br/>interconnect for data IOs                                                                                                                                              |
| Management Network              | Internal 1Gb network for management operations of VPSA, VPSA Object<br/>Storage & SN                                                                                                                                                                  |
| SRIOV                           | Single Root IO Virtualization.<br/><br/>A networking standard by which a<br/>physical adapter is logically provisioned for different VMs,<br/>bypassing the Hypervisor                                                                                |
| Application Server              | A server or a Virtual Machine in the Compute Cloud which consumes<br/>VPSA iSCSI Block Volume or NAS shares                                                                                                                                           |
| Tenant                          | Each end-user that accesses Zadara Storage Cloud.<br/><br/>**Note**: Each end-user can have multiple users or logins belonging<br/>to the same tenant                                                                                                 |
| QoS                             | Quality of Service.<br/><br/>Performance and reliability characteristics of a service                                                                                                                                                                 |