1 / 27

Storage Tiering assigning the most reliable, high-performance equipment to support the most critical data, and the mo

2. Questions. How many of you have a SAN?If you don't, do you think it would be too expensive

maxim
Télécharger la présentation

Storage Tiering assigning the most reliable, high-performance equipment to support the most critical data, and the mo

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    1. Storage Tiering assigning the most reliable, high-performance equipment to support the most critical data, and the most cost-effective resources to support older, less critical information Ken Walters PBS

    2. 2 Questions How many of you have a SAN? If you dont, do you think it would be too expensive & complicated? If you do, are you using a single large array? Are you considering iSCSI?

    3. 3 Agenda Definitions Justifications Background Tiered Model Enabling Technology Deployment

    4. 4 Definitions ATA/IDE (PATA) SATA (Serial ATA) SAS (Serial Attached SCSI) FC (Serial SCSI) SMB (Small/Medium Business) SAN (Storage Area Network) DAS (Direct Attached Storage) Virtualization

    5. 5 Justifications Lower disk costs SATA vs. FC Lower connectivity costs IP vs. FC Faster provisioning CAT5 vs. FC, iSCSI vs. FC Improved Productivity Foundation for ILM and Utility Computing

    6. 6 Background Concept has been around for a long time Mainframe environment Tape often a major component Large amounts of data Large amounts of money Not within reach of the SMB

    7. 7 Background Changing Times More being stored Retention Periods Disaster Recovery Logging Data mining Regulations - HIPPA, SOX

    8. 8 Background Typical SMB Data Center Technologies not conducive to efficient storage tiering: Direct Attached Storage Single array Islands of storage NAS DAS SAN

    9. 9 Background Typical SMB Data Center Many-hat staffing No Storage Administrator DAS mindset Distributed mindset Many servers each running one thing Makes storage networking expensive

    10. 10 Tiered Model Storage is heavily centralized and networked Storage is well virtualized Storage arrays In-band appliances Gateways Server side virtualization

    11. 11 Tiered Model Multiple levels of storage Differing performance Differing availability Differing Service Objectives Problem resolution Backup and restore Recovery Time Objective (RTO)/Recovery Point Objective (RPO)

    12. 12 Enabling Technologies IP Storage Gateways Inexpensive disks Inexpensive arrays Multi disk type arrays Sophisticated Array Software Storage friendly PNP operating systems Low cost SAN components Zero Server Footprint arrays

    13. 13 Deployment If you dont have a SAN, build one and do it with iSCSI Use FC only where you need it and make sure you really need it. If you have a FC SAN, leverage it Gateway iSCSI Gateway NAS Consolidate Storage Islands

    14. 14 Deployment Replace equipment Arrays that support FC and SATA under common controllers (soon there will be SAS as well) Software to migrate between tiers Augment by adding a new array to your SAN SATA instead of FC Centralize Storage and attach as many servers as possible to drive down TCO Start deploying multiple tiers

    15. 15 Time Check Still to go Defining Tiers Defining Availability Implementing Benefits

    16. 16 Maple Syrup Grade A Grade B? Grade C?

    17. 17 Defining Tiers Avoid tier names that may disappoint Determine the attributes based on solid business analysis

    18. 18 AAA - Defined

    19. 19 AA - Defined

    20. 20 A - Defined Consider RAID0 if you choose very large disks

    21. 21 Measuring Availability Avoid targets in italics People laugh at the top two now You lose sleep with the bottom one Cost of adding a 9 can be exponential

    22. 22 Availability & Service Levels Defining availability targets is crucial Management approval Everyone wants five nines until they see the price tag. The operational costs can be staggering. Charge backs help people be realistic Use a Service Level Objective (SLO) not an Agreements

    23. 23 Implementing Tiering Sell the idea to management Classify your data Importance, security, lifespan, availability Mission Critical, Business Critical, Operational

    24. 24 Implementing Tiering Tier applications Attributes include Performance Availability Recoverability Security Disaster recovery RPO/RTO Define storage tiers Define server tiers

    25. 25 Benefits of Tiering Highest availability does not become your lowest common denominator. Storage costs are in sync with value of data Concentrate money and staff where it is needed Staff Productivity Tiered Storage is the foundation for Information Lifecycle Mgmt (90% process/10% technology) Utility Computing

    26. 26 In Summary Build a SAN if you dont have one Use technology that supports tiering Tier your storage and applications Set availability & service levels Sit back, save money and increase productivity

    27. 27 Resources Web snia.org/education storagenetworking.org searchstorage.techtarget.com google.com Books Building Storage Networks Marc Farley Resilient Storage Networks Greg P. Schulz

    28. Thank You! kwalters@pbs.org

More Related