SAN Value Considerations TODAY and TOMORROW by liaoqinmei

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									SAN Value Considerations
   TODAY and TOMORROW


      J. Marc George, Sprint
     Chun Lam, Ph.D., Sprint




                               1
Affinity of Business Interests
  Common goals lead to overlapping
  processes
  These processes are or become
  automation systems (applications) to
  execute the business
  Customers enter the E-business portal
  through their browser, then navigate
  applications to utilize self-service tools.

                                            2
                                                                                       Leasing,
Affinity of Business Interests                                                          Banks




                                                                                     FINANCIAL




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             Media           MARKETING                           Market Rpt
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                                                                                    Dynamic Content Data Warehouse
                                                                                                                                            INFO SERVICES   Technology
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                                                                            PRODUCT
                                                                         FULLFILLMENT &
                                                                          OPERATIONS

 DIAGRAM 1: Affinity of Business Interests

 Normal purple = Organizations                                                               Product
 Italic blue= Processes                                                                     Producers
 Underline black = Automated Systems
                                                                                                                                                                         3
Distributed Centralization
 Each organization is a distributed
 function, efficiency is the benefit
 This organization collaborates as shown
 to obtain help from another distributed
 organization
 A centralized application is created
 resulting in economies of scale
 Results in a unified customer experience
 and brand name recognition.
                                        4
SAN Progress
  SAN is evolutionary, not revolutionary
     SAN Fabric is the successor to FCAL
  Disk drives densities increase more rapidly
  than CPU power
  Fiber cabling with fibre protocol adds high
  throughput, longer distance device
  connections
  Latest enabling technology is the switch
     Newest = least mature, most expensive


                                                5
FCAL vs. Fabric Architectures




 $ / Port                                 $ / Port
     Less Effective - Direct Connect          Effective - Fan-In (muxing) of x:1
        ( 1:1 limits Port Scalability )   $ / GB
 $ / GB                                       Smaller Unit Cost granularity
     Larger Unit Cost granularity             Trending to lower Effective Unit Cost
     Based upon By the Project cost

                                                                                      6
Increase in Drive Density




                            7
SAN Trend Summary
 Increasing Density
     Mature, inexpensive
     Enables centralization
 Increasing Control of information
     Not mature, expensive
     Enables previously unsolvable problems,
        Centralized Data Recovery, Backup
        Less expensive Disaster/Business Recovery

                                                     8
Dense Information?
  Corporate Data = Intellectual Property
  Data handling determines a company’s future
  Analogous to physical inventory
     Verified for statistical accuracy
     Categorized for reference
     Filtered to subset or search
     Assembled for examination or reporting
     Retained as specified by business criteria
  Effectiveness can be achieved through higher
  information densities
                                                   9
Path of Innovation
 A layered approach to innovation has proven
 effective – innovation within boundaries
     Results in accelerated rate of innovation due to larger
      participation
 Bandwidth went from scarce to abundant in 2000
     Leading to more ports          (similar to speed of disk growth)
        2nd generation Erbium lasers lower cost (more ports) and
         increase range of transmission
        Range of transmission will be limited for the SAN by Speed of
         Light factors, i.e., transaction volume vs. latency
     Leading to faster port speeds            (more linear growth)
        Elimination of Fan-In technique of planning
        Moving to planning by path bandwidth with less port compromises

                                                                           10
Tomorrow’s Changes –               page 1

  Re-engineering of Business Systems
     Older systems are adapted to allow
      customer access to needed data
  Re-assignment of associates
     Personnel layers adjust to manage newly
      developed customer systems
     Help Desk & Order Centers solves only
      complex problems.

                                                11
Tomorrow’s Changes –                    page 2

  Leveraging of business systems
     Huge Quantities of customers are managed
      through the self service approach
     Customer and Business make a virtual agreement
      on Product Cost vs. Product Features
  Customized Customer experience
     AI systems create subtle changes in customer
      interface, based on likes and habits
     Customer loyalty and impulsiveness creates
      retention and upsell


                                                     12
A SAN topology case study
  The following diagrams demonstrate an
  approach for planning large SAN
  infrastructures
  The generic diagram can be adapted for
  many specific needs




                                      13
                                                                                                         Wired: 7:1                                   Wired: 2.5:1                                                                        Wired: 1:1
                                                                                                      Equipped: 5:1                                 Equipped: 2:1                                                                      Equipped: 1:1
                                                                              SERVER SIDE A
                                                                                                      Assigned: 2:1                                 Assigned: 2:1                                                                      Assigned: 1:1


                                                                                                                                          2ea. - 16 of 20 drives                                                                             2 ea. -
                          8                                                     8                              8                              DLT8000
                                                                                                                                                    Tape
  20 Nodes              Nodes                                  20 Nodes       Nodes               20 Nodes   Nodes                                                                                                                          fibre path
                                                                                                                                                                                                                                             Storage
                                                                                                                                                    Tape Silos                                                                                Nodes




                                                                                                                                                                                                                   BRIDGE
                                                                                                                                                                               BRIDGE




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                                                                                                                                                                                        BRIDGE
                                                                                                                                 BRIDGE
                                 SWITCH 2                                             SWITCH 3                       SWITCH 4                                                                                                                          SWITCH 1
                                 SIDE A                                               SIDE A                         SIDE A                                                                                                                            SIDE A
                                 (32 PORT)                                            (32 PORT)                      (32 PORT)                                                                                                                         (32 PORT)
                                     4                                                  4                              4                                                                                                                                   4

                                     4                                                  4                              4                                                                                                                                   4

                                                                                                                                                                                                                                                           4
                                     4                                                  4                              4                                                                                                    SWITCH 5
                                     4                                                  4                              4                                                                                                    16 PORT)                       4

                                                                                                                                                                                                                              4                            4
                                     4                                                  4                              4
                                                                                                                                                                                                                              4                            4
                                     4                                                  4                              4
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                                     4                                                  4                              4
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                                     4                                                  4                              4




                                     # pools   Wired    Equipped   Assigned                                                                                                                                                                 Wired: 3:2          8 PORTS
Host   Ports                               3      168       120         52
SAN    Disk Drives                         1      384       160        130                                                                                                                                                               Equipped: 3:2
SAN    Disk Capacity (73GBea.)             1   14,300     8,000      6,500                                                                                                                                                               Assigned: 3:2          Single
SAN    Tape Drives                         4       80        64         64                                                                                                                                                                                       Disk
                                                                                              A SAN Topology – Redundant
SAN    Tape Drive Capacity (GB/hr)         4      432       345        345
SAN    Tape Carts                          4    2,712     2,712      2,712                                                                                                                                                                                      Farm
SAN    Tape Capacity (GB)                  4   73,495    73,495     73,495
SAN    Storage Nodes                       1        4         4          4                                                                                                                                                                                      8 PORTS




                                     4                                                  4                              4                                                                                                                                   4
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                                     4                                                  4                              4                                                                                                                                   4
                                                                                                                                                                                                                              4
                                     4                                                  4                              4
                                                                                                                                                                                                                            SWITCH 6                       4

                                     4                                                  4                              4                                                                                                    16 PORT)                       4

                                     4                                                  4                              4                                                                                                                                   4

                                     4                                                  4                              4                                                                                                                                   4

                                SWITCH 2                                              SWITCH 3                       SWITCH 4                                                                                                                            SWITCH 1
                                SIDE B                                                SIDE B                         SIDE B                                                                                                                              SIDE B
                                (32 PORT)                                             (32 PORT)                      (32 PORT)                                                                                                                           (32 PORT)




                                                                                                                                 BRIDGE

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                                                                                                                                                                                                                   BRIDGE
                                                                                                                                          2ea. - 16 of 20 drives                                                                             2 ea. -
                          8                                                     8                              8                                        DLT8000
  20 Nodes              Nodes
                                                               20 Nodes       Nodes               20 Nodes   Nodes                                         Tape                                                                             fibre path
                                                                                                                                                                                                                                             Storage
                                                                                                                                                    Tape Silos                                                                                Nodes
                                                                                                                                                                                                                                                               14
                                                                              SERVER SIDE B
                                                                                                            Wired: 7:1                                     Wired: 2.5:1                                                                        Wired: 1:1
                                                                                                         Equipped: 5:1                                   Equipped: 2:1                                                                      Equipped: 1:1
                                                                           SERVER SIDE A
                                                                                                         Assigned: 2:1                                   Assigned: 2:1                                                                      Assigned: 1:1


                                                                                                                                               2ea. - 16 of 20 drives                                                                             2 ea. -
                    8                                                            8                                  8                                        DLT8000
                                                                                                                                                                Tape
20 Nodes          Nodes
                                                        20 Nodes               Nodes
                                                                                                   20 Nodes       Nodes                                                                                                                          fibre path
                                                                                                                                                                                                                                                  Storage
  ASSIGNED                                                ASSIGNED                                   ASSIGNED                                            Tape Silos                                                                                Nodes
YES       NO                                            YES       NO                               YES       NO




                                                                                                                                                                                                                        BRIDGE
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                                                                                                                                                                                             BRIDGE
                          SWITCH 2                                                     SWITCH 3                           SWITCH 4                                                                                                                          SWITCH 1
                          SIDE A                                                       SIDE A                             SIDE A                                                                                                                            SIDE A
                          (32 PORT)                                                    (32 PORT)                          (32 PORT)                                                                                                                         (32 PORT)
                             4                                                           4                                  4                                                                                                                                  4

                             4                                                           4                                  4                                                                                                                                  4

                                                                                                                                                                                                                                                               4
                             4                                                           4                                  4                                                                                                    SWITCH 5
                             4                                                           4                                  4                                                                                                    16 PORT)                      4

                                                                                                                                                                                                                                   4                           4
                             4                                                           4                                  4

                                                                                                                                                                                                                                   4                           4
                             4                                                           4                                  4

                                                                                                                                                                                                                                   4                           4
                             4                                                           4                                  4
                                                                                                                                                                                                                                   4                           4
                             4                                                           4                                  4




                                      # pools   Wired    Equipped   Assigned                                                                                                                                                                     Wired: 3:2        8 PORTS
    Host Ports                              3      168        120        52
    SAN Disk Drives                         1      384        160       130                                                                                                                                                                   Equipped: 3:2
    SAN Disk Capacity (73GBea.)             1   14,300      8,000     6,500                                                                                                                                                                   Assigned: 3:2        Single
    SAN Tape Drives                         4       80         64        64                                                                                                                                                                                         Disk
    SAN Tape Drive Capacity (GB/hr)         4      432        345       345
    SAN Tape Carts                          4    2,712      2,712     2,712                                                                                                                                                                                        Farm
    SAN Tape Capacity (GB)                  4   73,495     73,495    73,495
    SAN Storage Nodes                       1        4          4         4
                                                                                                   A SAN Topology – One Side                                                                                                                                       8 PORTS
                                                                                                                                                                                                                                                              15
New Metrics for SAN Architecture
  SAN Effectiveness
     Density of Information (DI) =
  Volume of Data (GB) / Physical Space (sq.ft.)


  SAN Efficiency
     Relative Efficiency =
  DI (GB/cu.ft.) / Complexity of Delivery ($)


                                                16

								
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