Data center Technologies

DATA CENTER
TECHNOLOGIES
Sagar Patil
EMC Proven Professional

@sagarkotekar
EMC Proven Professional. Copyright © 2012 EMC Corporation. All Rights Reserved. 1

Agenda
• Information storage and management
• Core elements of a data center
• Intelligent storage systems
• Storage networking technologies
• Business continuity solutions

EMC Proven Professional. Copyright © 2012 EMC Corporation. All Rights Reserved.

Why Information Storage and Management?
• Information is the knowledge derived from data
• Growth of digital information has resulted in information
explosion
• We live in an on-command, on-demand world
 We need information when and where required
• Increasing dependency on fast and reliable access to information
• Businesses seek to store, protect, optimize, and leverage the
information
 To gain competitive advantage
 To derive new business opportunity


Data Center
Data Center

It is a facility that contains storage, compute, network, and other IT
resources to provide centralized data-processing capabilities.

• Core elements of a data center
 Application
 Database management system (DBMS)
 Host or Compute
 Network
 Storage
• These core elements work together to address data-processing
requirements


Data Center: Online Order Transaction System
Example

Host/ Storage Array
Compute

Client

Storage
LAN/WAN Network

User
Interface OS and DBMS


Host (Compute)
• Resource that runs applications with the
help of underlying computing
components
 Example: Servers, mainframes, laptop,
desktops, tablets, server clusters, etc.
• Consists of hardware and software
components
• Hardware components
 Include CPU, memory, and input/output IP
(I/O) devices
• Software components
 Include OS, device driver, file system,
volume manager, and so on


Storage
• Stores data created by individuals and organizations
 Provides access to data for further processing
• Examples of storage devices are:
 Media card in a cell phone or digital camera
 DVDs, CD-ROMs
 Disk drives
 Disk arrays
 Tapes


Evolution of Storage Architecture

Department 1 Department 2 Department 3
Server Server Server

Department 1 Department 2 Department 3
Server Server Server

Storage
Network

Server-centric Storage Architecture

Storage Device
Information-centric Storage Architecture


Intelligent Storage System (ISS)
Intelligent Storage System

It is a feature-rich RAID array that provides highly optimized I/O processing
capabilities.

• Provides large amount of cache and multiple
I/O paths that enhances the performance
• Has an operating environment that provides
 Intelligent cache management
 Array resource management
 Connectivity to heterogeneous hosts
• Supports flash drive, virtual provisioning, and
automated storage tiering
Intelligent Storage Array


Key Components of an ISS

Intelligent Storage System
Host
Front End Back End Physical Disks

Cache
Connectivity
Storage
Network


Storage Area Network
SAN

It is a high-speed, dedicated network of servers and shared storage devices.

• Centralizes storage and management
• Enables sharing of storage resources across multiple servers at
block level
• Meets increasing storage demands efficiently with better
economies of scale
• Common SAN deployments are:
 Fibre Channel (FC) SAN: uses FC protocol for communication
 IP SAN: uses IP-based protocols for communication


Understanding Fibre Channel
• High-speed network technology
 Latest FC implementation supports speed up to 16 Gb/s
• Highly scalable
 Theoretically, accommodate approximately 15 million devices

IP
Network FC SAN

Clients Application Servers Storage Arrays


Fibre Channel over IP (FCIP)
Servers Servers

Server Server

FCIP Gateway FCIP Gateway

FC SAN FC SAN

IP

Storage Array Storage Array


Fibre Channel over Ethernet (FCoE)

CNA
LAN Ethernet
FC HBA SAN (FCoE)

SAN (FC)

LAN
(Ethernet)

NIC

CNA

Without FCoE With FCoE


Network Attached Storage
NAS

It is an IP-based, dedicated, high-performance file sharing and storage device.

• Enables NAS clients to share files over IP network
• Uses specialized operating system that is optimized for file I/O
• Enables both UNIX and Windows users to share data
Clients

LAN
Application
Servers

NAS Device

Print Server


NAS Use Case – Server and Storage Consolidation
with NAS
Traditional File Server Environment NAS Environment
Internal Users Internal Users

Business Clients Surfers, Shoppers Business Clients Surfers, Shoppers

IP IP

NAS
Head
Web and Web and
Database Database
Servers Servers

Windows UNIX
File Server FC SAN File Server
FC SAN

Storage Storage


Business Continuity
• Information is an organization’s most important asset
• Continuous access to information ensures smooth functioning of
business operations
• Cost of unavailability of information to an organization is greater
than ever


Causes of Information Unavailability

Disaster (<1% of Occurrences)
Natural or man made
• Flood
• Fire
• Earthquake

Unplanned Outages (20%)
Failure
• Database corruption
• Component (physical and/or virtual) failure
• Human error

Planned Outages (80%)
Competing workloads
• Backup, reporting
• Data warehouse extracts
• Application and data restore


Impact of Downtime
Lost Productivity Know the downtime costs (per Lost Revenue
• Number of employees hour, day, two days, and so on.) • Direct loss
impacted x hours out x • Compensatory payments
hourly rate • Lost future revenue
• Billing losses
• Investment losses

Damaged Reputation Financial Performance
• Customers • Revenue recognition
• Suppliers • Cash flow
• Financial markets • Lost discounts (A/P)
• Banks • Payment guarantees
• Business partners • Credit rating
• Stock price
Other Expenses
• Temporary employees, equipment rental, overtime
costs, extra shipping costs, travel expenses, and so on.


Single Points of Failure
Single Points of Failure

It refers to the failure of a component of a system that can
terminate the availability of the entire system or IT service.

Array port

Client IP Switch FC Switch
Server Storage Array


Resolving Single Points of Failure

Redundant
Client Redundant Ports Arrays
Redundant Paths

NIC HBA
NIC
HBA

IP
Redundant
Network
Redundant FC
NIC
Switches
HBA Production Remote
NIC Teaming NIC Storage Array Storage Array
HBA

Clustered Servers


Backup
Backup

It is an additional copy of production data that is created and retained
for the sole purpose of recovering lost or corrupted data.

• Organization also takes backup to comply with regulatory
requirements
• Backups are performed to serve three purposes:
 Disaster recovery
 Operational recovery
 Archive


Replication
Replication

It is a process of creating an exact copy (replica) of data.

• Replication can be classified as
 Local replication
 Replicating data within the same array
 Remote replication
 Replicating data at remote site

REPLICATION

Source Replica (Target)


Archive – Fixed Content
• Fixed content is growing at more than 90% annually
 Significant amount of newly created information falls into this
category
 New regulations require retention and data protection

Examples of Fixed Content

Electronic Documents Digital Records Rich Media
• Contracts and claims • Documents • Medical
• Email attachments • Checks, securities • X-rays, MRIs, CT Scan
trades
• Financial spread sheets
• Historical preservation
• Video
• CAD/CAM designs • News/media, movies
• Photographs • Security surveillance
• Presentations • Personal/professional
• Audio
• Surveys • Voicemail
• Seismic, astronomic, • Radio
geographic


Summary
• Information storage and management
• Core elements of data centers
• Intelligent storage systems
• Storage networking technologies
• Business continuity solutions


Q&A


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