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Effective Chargeback Strategies for Managing PI Storage Needs in Data Centers

This comprehensive guide explores various strategies for handling Principal Investigators (PIs) who purchase storage solutions such as Drobos. The key themes cover chargeback systems, data center management, and performance optimization through tiered pricing models, including free storage quotas and competitive rates for overages. Additionally, it emphasizes the importance of understanding your objectives and stakeholder engagement, alongside options like offer discounts to secure commitments. Enhancing awareness and ensuring cost recovery while adapting to usage patterns are fundamental to a successful storage management strategy.

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Effective Chargeback Strategies for Managing PI Storage Needs in Data Centers

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Presentation Transcript

  1. Storage; Chargeback / Dealing with PIs who buy Drobos BRIITE 2012

  2. Problem statement http://www.youtube.com/watch?v=gDfLXAtRJfY

  3. Options for dealing with a PI who buys one: • Murder them • Abandon them • Take it in

  4. Winner: Take it in • Better in the data center than out • All you’re offering is power, UPS, cooling • Not backup • Not admin • When it dies: • Offer them a deal • (e.g., 50% off for 1st yr) • Then they’re hooked

  5. Chargeback: YMMV • Objectives: • Cost recovery • Making people aware • Funding profile of your organization • Lots of grants • One or two big foundations

  6. Chargeback in context • Everything free, hard storage quotas • Chargeback for storage • Chargeback for storage and computation • Chargeback for everything (including network ports/network infrastructure fee)

  7. Chargeback for storage – examples: • Each lab gets 100GB per employee free, after that $1000/year/TB • Each PI gets 1TB free, but if you go over, we charge for everything - high tier $72/month/TB, low tier $12/month/TB • Free amount of storage, then $80/TB/month up to 20 TB, then “storage condoing” in 20TB chunks • Bill based on snapshot at fixed time per month, or on average usage • Backup: either backup everything, paying out of overhead, or charge extra for “disaster recovery insurance”

  8. Storage condos: • Issue a quote for take-it-or-leave-it storage server • They pay for all the storage in the chunk whether or not they use it • Each chunk is an independent storage server • Horizontally scales performance • They can take it with them if they leave • Note: pay-per-use can justify a higher cost/TB than condoing

  9. To think about before you start: • Understand your objectives • Socialize before you start • Engender a sense of inevitability • Think about branding • Crawl the filesystem/gather stats • Showback before you chargeback

  10. Other things to think about: • Reality that outliers use most of the space • 2 labs = 70% of storage • 3 labs = 90% of storage • Price to cost of storage: small labs get piddly bills • Not encouraging awareness • Price to more than cost: big labs get huge bills • Consider bulk pricing • Some core facilities buy storage and then bundle the cost into their service • Consider super cheap tier: long term tape storage • Some allocation free, thereafter media cost • Consider local mirror of big, widely used datasets • TGCA, dbGaP, 1000 Genomes

  11. Odds and sods, vaguely related: • Data deduplication technology • Expensive, nifty for VMs • Main use case: reducing backup windows • Desktop backup • They do that? (me) • TSM works for laptops because it’s client-initiated • Only offer it for the big shots • Dropbox • One organization’s survey shows 500 dropbox installs on 3000 desktops • It’s a risk – what are they uploading? • Start with a “cloud data policy” – ask your compliance person

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