economics of cloud storage vs . traditional removable media

1Zmanda Cloud Backup www.zmanda.com Twitter: @zmanda

Economics of Cloud Storage vs.

Traditional Removable MediaChander Kant

CEOZmanda, Inc.


Economics of Cloud Storage

• For Secondary or Tertiary Storage

• Macro view• Industry shift

• Micro view• IT Manager’s Choice

• Our view• Building a business on Cloud Storage


Zmanda

• Leader in Open Source Backup & Cloud Backup– ~1,000,000 protected systems– 1000+ Cloud Backup customers

• Open Source. Open APIs. Open Formats.– Smashes traditional backup business model

• Cloud Backup Specialist


Cloud Backup

• Backup to Cloud– Backup on-premises data to Storage Cloud (e.g. S3)

• Backup of Cloud– Backup applications running on Compute Cloud (e.g. EC2)


Storage Cloud 101

• Unlimited storage available over the Internet• On-demand and Elastic• Web services interface (REST, SOAP)

• Other protocols can be built on top of these

• Cost is typically based on actual storage and bandwidth used

• Off-site• Ideal for Secondary and Tertiary Storage


Backup Industry – still tangled up in Tapes

• Tapes still a significant component of backup industry

• Availability of high-capacity/low-cost (e.g. SATA) drives accelerated the trend away from Tapes

• Per GB cost advantage of tape became 4:1 instead of historical 10:1


Tape: Long Survivor

Tapes survived because of several benefits, including ease of vaulting to a remote site


The End is Nigh

Following combined:• Inexpensive Disks• Reliable High Bandwidth Internet Access• Inexpensive or Free (Open Source) Storage Management

Software• Provisioning Software• Business opportunity sensed by large-scale web-based

businesses

For a potent brew:• Cloud Storage


What about $3B+ Tape Industry?

• Tape won’t be dead, but will become niche• Will be used for long term archiving with very

high Recovery Time Objective (RTO)• Data in WORSE mode (Write Once Read Seldom if

Ever)

• Significant proportion of current spend on Tape Drives, Media and Robotics will move to Cloud Storage


Barriers to Cloud Storage Adoption

• Privacy/Trust/Political

• Bandwidth• 1TB backup over a weekend needs ~25Mbps

uplink (assuming 50% compression of data)


Storage Provisioning

• Huge problem for IT Managers

• Over-provisioning: Expensive

• Under-provisioning: Hara-kiri

• Cloud Storage: Problem Solved!


Locking up your backup data in proprietary formats (including proprietary clouds) comes with a *huge* cost and pain

Advantage of Open


More robust than what you can buy

• Amazon RRS is 400 times more durable than a typical hard disk

• Acquire the risk profile of a much larger organization


Performance Considerations

• Full backup and Recovery time• Bandwidth consumption

– Consider consumer-class dedicated link for uploads

• Limited data transfers in the backup window• Perform Incremental Backups most of the time• Recovery performance and strategy very different

from getting tapes shipped back to premises• Consider Hybrid Backup


Cost ComparisonBackup-to-Tape vs. Backup-to-Cloud

Backup-to-Tape• Backup Server• Backup Software• Tape Library• Tape Drives• Tapes• Hardware support• Space and Electricity• Transportation• Remote Secure Vaulting

Backup-to-Cloud• Backup Software• WAN Bandwidth• Cloud Storage


Cost Comparison Example – Cloud Backup Cost

• 1 TB backed up to cloud every month• 2 Months retention• 50% compression• Encrypt data before shipping• $0.15/GB/Month

• Cloud Backup Monthly Cost: $150• Three year cost: $5400


Cost Comparison Example – Tape Backup Cost


Shipment/Transfer Costs

• Tape pick up and storage services typically start at $200/month

• What is the additional cost for your bandwidth?


Compliance

• Location matters!• Country-specific regulations

• Vertical Specific Compliance Requirements• E.g. Medical Records

• Reporting

• Retention Policy Management


Why backup to cloud?

•No capital expenses. Backup storage use is elastic in nature

•Reduce infrastructure management tasks

•Faster recovery from offsite backups

•Geographic accessibility• Geographic choice (Cloud Storage locations are expanding fast!)

•More efficiency and reliability for SMB customers

•Multiple cloud vendors to improve reliability• Backup data available in the cloud for additional analysis such as

e-discovery


Cloud solved two major problems for us

• We did not want to operate a data center

• We did not want to meter and bill thousands of customers around the world


ISV Business Model: S3 + DevPay

• One of the first users of S3 + DevPay

• DevPay is great but has limitations

• Other Cloud Storage vendors are catching up to enable ISVs


Zmanda Cloud Backup

• Live Backup of Microsoft Exchange, SQL Server, and SharePoint• Live Backup of Open Files• Full and Incremental Backups• Network Drive support• Direct Backup to Cloud• D2D2C

• Hybrid backup to both local disk and cloud

28Zmanda Cloud Backup www.zmanda.com Twitter: @zmandaZmanda Cloud Backup

Backup to 3 Continents


Cloud Backup – Advanced Features

• Location Control• Built-in data integrity check during data transfer• Transfer Block Size Control– Default block size is 10MB– Block size can be between 1KB and 100MB

• Multi-threaded Uploads• Encryption– Can be turned off for public data


Amanda EnterpriseServer

DB Server

Email Server

File Server

Replication of Configuration

& Catalog

Internet

Primary Location

StandbyVirtual

Machines

on the Cloud

Backup & DR on the Cloud

VirtualAE Server

Backup Images

AE S3 Option


Zmanda Cloud Backup: Links and References

http://www.zmanda.com/cloud-backup.html

http://www.zmanda.com/backup-Amazon-S3.html

http://www.zmanda.com/blogs/Privacy / Trust / Culture


Cloud Backup Products from Zmanda

• Amanda Enterprise – Amazon S3 Option• Backup whole datacenter to the Cloud• Backup VMs running on EC2 to S3

• Zmanda Cloud Backup• Backup a Windows server to the Cloud

• Zmanda Recovery Manager – EBS Snapshot Option• Quick backup of MySQL running on EC2

economics of cloud storage vs . traditional removable media

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