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Glossary of Data Center Migration Terms


  1. Bill of Materials (BOM)   
    List of items needed.
  2. Business Impact Analysis (BIA)    
    Key process/document in continuity planning, identifies (and quantifies) the urgency of each business activity in event of outage and typically outlines allowable time window for recovery.
  3. Change Control Board (CCB)    
    A review committee that renders decisions on proposed system changes while representing the broader corporate initiatives/goals/interests/security/architecture/etc.
  4. Change Notice (CN)    
    Process/Form submitted to announce/inform stakeholders that a change in information systems will occur (uncluding what and when).
  5. Chassis    
    Blade enclosure that provides many of the non-core services and holds the blades.
  6. Cloud Computing    
    Provides computation, software, data access, and storage services without knowledge of the physical location or configuration of the system that delivers the services.
  7. Colocation    
    Act of placing multiple entities within a single location. (e.g. You shouldn't co-locate a system and it's DR).
  8. Computer Room Air Conditioning Unit (CRAC)    
    Device that monitors and maintains the temp, air distribution, and humidity in a network room or datacenter.
  9. Computing as a Service (CaaS)    
    Delivery of computing as a service rather than a product (see Cloud Computing).
  10. Configuration Item (CI)    
    Fundamental structural unit of a CMDB.
  11. Configuration Management Database (CMDB)    
    Repository of information related to all the components of an information system.
  12. Disaster Recovery (DR)    
    Applies to systems that perform this function as well as plans that address such events.
  13. EMC    
    Leading supplier of storage products for midrange computers and mainframes.
  14. Forklift Migration (FL)    
    Migration of existing system via physical relocation of the hardware into the new data center.
  15. General Computer Controls (GCC)    
    Control activities performed within the IT Organization or the technology they support that can be applied to every system that the organization relies upon.
  16. Information Systems Continuity Plan (ISCP)    
    Identified the planning actions/procedures for restoration of systems. One is generally required for any unaccepted risk.
  17. Key Performance Indicator (KPI)    
    Detailed specifications used to track business objectives (can be though of as a metric with a target).
  18. Local Area Network (LAN)  
    Network of computers in close proximity to each other (e.g. home/office building).
  19. Metropolitan Area Network (MAN)    
    Network covering a geographic area (town/city).
  20. Move Bundle    
    The smallest collection of servers than can move based upon technical dependencies (i.e. "atomic move unit").
  21. Move Group    
    Collection of Move Bundles that are scheduled to move simultaneouly (due to convenience, business reason, whatever).
  22. Network Attached Storage (NAS)    
    Dedicated hardware which allows files to be stored and retrieved across a network, typically over Ethernet.
  23. Network Design Review (NDR)    
    Process/Form submitted to CCB for approval to perform changes in enterprise network architecture.
  24. Over-the-Wire (OTW)    
    Conversion/Migration directly into the target site using the WAN connection between sites.
  25. Physical-to-Physical (P2P)    
    Conversion of a server from physical to physical (running it on different dedicated hardware).
  26. Physical-to-Virtual (P2V)    
    Conversion of a server from physical to virtual instance.
  27. Refresh Cycle    
    Time between replacement of computers/hardware.
  28. Server Blade    
    Stripped down server computer with modular design optimized to minimize space and energy.
  29. Server Change Request (SCR)   
    Process/Form submitted to CCB for approval to perform a change on a server which already exists in the enterprise
  30. Server Design Request (SDR)    
    Process/Form submitted to CCB for approval to to place a new server into the enterprise.
  31. Server Rack    
    Standardized frame for mouting multiple equipment modules.
  32. Site Module (SM)    
    Would not recommend including - uncommon/non-standard/has a different meaning in web development.
  33. Storage Area Network (SAN)    
    A network of storage disks, typically connects multiple servers to a centralized pool of disk storage.
  34. Structured Storage    
    Data having a predefined structure (SQL, Access, Exchange databases) - More involved to migrate.
  35. Swing Equipment   
    Duplicate application hardware in a new data center used to migrate systems into the new environment via Swing Migration.
  36. Swing Migration    
    Migration of system onto new hardware in the new data center. Enables you to simply "cut over" in real time instead of incurring down time (P2P).
  37. System of Record (SOR)    
    The authoritative data source for a given set of information.
  38. T2P    
    Would not recommend including - uncommon.
  39. Tivoli Storage Manager (TSM)    
    IBM Storage Management Software that automates data backup and restore functions.
  40. Uninterruptible Power Supply (UPS)    
    Provides emergency power to a load during failure, differs from a generator in that it provides instantaneous protection via batteries for a short period while auxillary power comes on line.
  41. Unstructured Data    
    Data having no identifiable strucutre (e.g. images, text, non-database) - Easily migratable, this is most enterprise data
  42. Virtual LAN (vLAN)    
    Virtual LAN, has the same attributes as a physical LAN but allows for end station to be grouped together even if not located on the same network switch.
  43. Virtual Machine (VM)    
    A "guest" environment that does not physically exist but is created within another "host" environment.
  44. Virtual Migration    
    Migration of a server via transmission of the virtual image to the new data center (V2V, P2V OTW).
  45. Virtual-toVirtual (V2V)    
    Conversion of a server from virtual to virtual instance.
  46. vMotion    
    VMware's tool that enables live migration of virtual machines
  47. VMware    
    Majority owned by EMC, a provider of virtualization software
  48. vSphere    
    VMware Inc.'s flagship server virtualization suite.
  49. Wide Area Network (WAN)    
    Long-distance communications network (typically using Internet for connectivity between MANs/LANs).