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DS is the digital service implemented on a T line of the same number (T-1
  supports the service DS-1), DDS is the digital data service normall
  on a switched/56 line.  The DS-X can be total multiplexed bandwith
  or a combination of grouping of the 56 lines.
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ATM  - asyncronous transfer mode
ADSL - asymmetric DSL
CDDI - copper distrubuted data interface
CSU  - channel service unit
DDS  - digital data service
DSL  - digital subscriber line
DSU  - digital service unit
FDDI - fiber distrubuted data interface
FTTC - fiber to the curb
OC   - optical carrier
POTS - plain old telephone service
SONET- syncronous optical network 
STM  - sychronous tranport module - used for SONET
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ESCON - Enterprise System CONection
FA   - Fiber Adapter
FC   - Fiber Channel
FC/AL - Fiber Channel Arbitrated Loop
FAIS - fabric application Interface Standard
NAS  - Network Attached Storage
SAN  - Storage Area Network
SAS  - Serial Attached SCSI
SATA - Serial ATA
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LOB - Line of Business
BCP - Business Continuity Plan
CAS - Content Addressable Storage
OCR - Optical Character Recognition
PDF - Protable Document Format (Adobe)
RTO - Recovery time objective - The acceptable amount of time from the start of the data recovery process until its completion 
RPO - Recovery point objective- The acceptable time variance between the current time and the age of the data available to be restored 

Backup frequency - How often a file is backed up. Also related to the cycle of full/incremental backups 
Retention period - The length of time that a particular version of a file is available to be restored 
Backup window - The period of time available each day to complete backups 
Off-site/Disaster recovery requirements - Additional recovery requirements and considerations for disaster recovery scenarios, i.e., data dependencies, additional coordination requirements,etc. 
Archival requirements - Long-term data retention of historical data and related management requirements. Driven by business and regulatory demands 
Special media considerations - Additional requirements regarding media type, validation, refresh, etc. 

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Government Regulations
    HIPAA (Health Insurance Portability and Accountability Act)
    SEC Rule 17a-3, 17a-4
    FDA 21 CFR Part 11
    DoD 5015.2
    Sarbanes-Oxley Act
    CFR (Code of Federal Regulations) Part 11 for Pharmaceutical
    ISO 9000
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