Economics of Public Cloud
       Storage:

For primary storage and
     disaster sites
        November 2009
Comparison
   Compare total cost of ownership (TCO) of cloud storage versus local
    storage
      Capital and Operatin...
Baseline: 1TB storage capacity
$250,000.00

$200,000.00

$150,000.00
                                                     ...
3-yr TCO:
Fixed capacity, primary storage
$120,000.00

$100,000.00

 $80,000.00

 $60,000.00                              ...
3-yr TCO:
Fixed capacity, offsite storage
$400,000.00

$350,000.00

$300,000.00

$250,000.00
                             ...
3-yr TCO:
Growing capacity, primary storage
$160,000.00

$140,000.00

$120,000.00

$100,000.00

 $80,000.00               ...
3-yr TCO:
Growing capacity, offsite storage
$700,000.00

$600,000.00

$500,000.00

$400,000.00                            ...
Results
 Small capacities (~1TB)
    Cloud storage appears considerably less expensive than local
    Storage arrays do...
Model Cost Assumptions
Local Storage
Local storage array                        $30,000.00
Local tape library             ...
Additional resources
 Clarity AP used to model baseline configuration
    Free download from www.twinstrata.com
    Dow...
Thank You




   TwinStrata.com   11
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The Economics of Public Cloud Storage

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Cloud storage as a service is available today, but how can you realize the cost savings it promises? Learn what use cases and what capacities can make cloud storage work for your business with substantial cost savings over in-house solutions.

Based on the results of this analysis, cloud storage can be very compelling for companies replicating up to 60 TB to a public cloud. For a mid-sized company or departments within a larger organization, this represents a substantial capacity range for replicating data to the cloud.

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  • In-house vs web 2.0 apps
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  • In-house vs web 2.0 apps
  • In-house vs web 2.0 apps
  • In-house vs web 2.0 apps
  • In-house vs web 2.0 apps
  • In-house vs web 2.0 apps
  • In-house vs web 2.0 apps
  • In-house vs web 2.0 apps
  • In-house vs web 2.0 apps
  • In-house vs web 2.0 apps
  • In-house vs web 2.0 apps
  • In-house vs web 2.0 apps
  • Transcript of "The Economics of Public Cloud Storage"

    1. 1. Economics of Public Cloud Storage: For primary storage and disaster sites November 2009
    2. 2. Comparison  Compare total cost of ownership (TCO) of cloud storage versus local storage  Capital and Operating expenses, ignoring local site floor/power/cooling costs  Calculate 3-yr TCO across the following storage use cases  Primary storage tier  Local storage array, local tape backup –versus-  CloudArray™ storage gateway, cloud storage, snapshot-based backup  Offsite replicated storage tier for disaster recovery  Local storage array with remote replicated disaster site –versus-  Local storage array with CloudArray™ cloud-hosted disaster site  Observe TCO as capacity increases  Start with 1TB baseline  Compare across fixed size X TB storage configurations  Compare across linearly growing 0-X TB storage configurations TwinStrata.com 2
    3. 3. Baseline: 1TB storage capacity $250,000.00 $200,000.00 $150,000.00 Capex $100,000.00 Opex 3yr TCO $50,000.00 $0.00 Local Cloud In-house Cloud Storage Storage Disaster Disaster recovery recovery Primary storage tier Offsite replicated storage tier TwinStrata.com 3
    4. 4. 3-yr TCO: Fixed capacity, primary storage $120,000.00 $100,000.00 $80,000.00 $60,000.00 Local Storage Cloud storage $40,000.00 $20,000.00 $0.00 1 2 3 4 5 6 7 8 9 10 Capacity in TB TwinStrata.com 4
    5. 5. 3-yr TCO: Fixed capacity, offsite storage $400,000.00 $350,000.00 $300,000.00 $250,000.00 In-house Disaster $200,000.00 recovery $150,000.00 Cloud Disaster recovery $100,000.00 $50,000.00 $0.00 1 2 3 4 5 6 7 8 9 10 15 20 25 Capacity in TB TwinStrata.com 5
    6. 6. 3-yr TCO: Growing capacity, primary storage $160,000.00 $140,000.00 $120,000.00 $100,000.00 $80,000.00 Local Storage Spikes in cost $60,000.00 are from Cloud storage additional storage array $40,000.00 $20,000.00 $0.00 1 5 10 15 20 25 Capacity inTB TwinStrata.com 6
    7. 7. 3-yr TCO: Growing capacity, offsite storage $700,000.00 $600,000.00 $500,000.00 $400,000.00 In-house Disaster Spikes in cost recovery $300,000.00 are from Cloud Disaster additional storage array recovery $200,000.00 $100,000.00 $0.00 1 5 10 15 20 25 30 35 40 45 50 55 60 65 70 Capacity inTB TwinStrata.com 7
    8. 8. Results  Small capacities (~1TB)  Cloud storage appears considerably less expensive than local  Storage arrays do not scale down to a true pay-as-you-go model  For fixed storage capacities  Cloud storage less expensive up to about 7TB for primary storage and 20TB for offsite storage  Cloud saves significantly on the remote site infrastructure needed for an offsite copy of data  Linearly growing storage capacities  Crossover point advances to 20TB for primary storage and 60TB for offsite storage  Cloud benefits from a pay as you go, 100% utilized model, versus a pay up front, underutilized model.  All results based on model assumptions and may vary across configurations TwinStrata.com 8
    9. 9. Model Cost Assumptions Local Storage Local storage array $30,000.00 Local tape library $3,400.00 Local storage base capex $33,400.00 # of drives per RAID set 5 cost per drive $875.00 capacity per drive (GB) 600 RAID set capacity(TB) 2.40 RAID set cost $4,375.00 RAID opex (annual) $5,000.00 (maintenance and administrative cost) Backup opex (annual) $5,023.05 (maintenance and administrative cost) Storage array capacity (TB) 45.60 Local power/cooling/floor space not factored for this study Cloud Storage Cloud Provider Cost 0-50TB 50-100TB Cloudarray base license $4,000.00 max cap TB 25 capacity cost per GB/mo $0.15 $0.14 Capacity cost per TB/mo $150.00 $140.00 bandwidth cost per GB/mo $0.10 $0.10 Bandwidth cost per TB/mo $100.00 (assuming 100% update rate/mo) Additional capacity for snapshots 10.00% 3yr capacity total cost per TB $9,900.00 $9,504.00 Cloud opex base 1,000.00 In-house DR to remote site In-house DR base capex $107,400.00 (2X storage array, $20K remote lab infrastructure + $25K replication license) RAID set cost $8,750.00 (2X capacity) Remote site annual operating costs $24,114.00 (space, power, cooling, multi-site management, network) TwinStrata.com 9
    10. 10. Additional resources  Clarity AP used to model baseline configuration  Free download from www.twinstrata.com  Download configuration file from Clarity AP portal: cloudROI - local.cyr  Change parameters to model your exact configuration TwinStrata.com 10
    11. 11. Thank You TwinStrata.com 11
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