Storage terms starting with C

61 terms

  1. Cache A type a computer memory that temporarily stores frequently used information for quick access.
  2. campus cluster A single cluster that is geographically dispersed within the confines of an area owned or leased by the organization such that it has the right to run…
  3. CAP (Cartridge Access Port) a 20 to 30 cartridge enter/eject facility for a StorageTek robotic tape library. See ECAP.
  4. cascading failover Cascading failover is the ability of an application to fail from a primary to a secondary location, and then to fail to a recovery location on a different…
  5. CDDI Copper Distributed Data Interface. A version of FDDI that uses UTP wires rather than optical fiber.
  6. CDN Content Delivery Network. A network, or that portion of a network, built specifically to speed the delivery of Web-based content across the public…
  7. CDS (Control Data Set) an SMS VSAM linear data set containing configurational, operational, or communication information. See SMS.
  8. CFO Chief Financial Officer
  9. Channel The bed of a stream or river. This can also refer to a submerged stream or river channel in a reservoir.
  10. Chassis The shell of the race car itself including the floorboard, interior and roll cage. The chassis is loosely based off of standard manufactured cars.
  11. CIDR Configuration Item Design Review.
  12. CIFS Common Internet File System. Microsoft's file-sharing protocol that evolved from SMB.
  13. CIFS authentication mode The method used for authentication of CIFS users.
  14. CIFS cred The credential used to validate requests for files with NT-style security.
  15. CIFS share A directory or directory structure that has been made available to network users and can be mapped to a drive letter on a CIFS client.
  16. Classless Inter-Domain Routing (CIDR) A type of network routing that uses the network mask instead of the address class to determine the destination network.
  17. client Any computer system that requests a service of another computer system. A workstation requesting the contents of a file from a file server is a client of…
  18. client reconnect Users access to the backup site after failover. Client reconnect can be transparent, where the user is automatically connected to the application running…
  19. cluster Clusters are fixed length blocks of bytes that store data for Microsoft operating systems.
  20. cluster alarm Time at which a message is sent indicating that the cluster is probably in need of recovery. The cmrecovercl command is enabled at this time.
  21. cluster alert Time at which a message is sent indicating a problem with the cluster.
  22. cluster event A cluster condition that occurs when the cluster goes down or enters an UNKNOWN state, or when the monitor software returns an error.
  23. Cluster Interconnect A very high-speed connection allowing nodes in a cluster to communicate.
  24. cluster monitor Software that administers the relationship of filers in a cluster.
  25. cluster quorum A dynamically calculated majority used to determine whether any grouping of nodes is sufficient to start or run the cluster.
  26. clustered failover (CFO) Method of ensuring data availability by transferring the data service of a failed filer to another filer in the cluster.
  27. Coercivity The level of demagnetizing force that would need to be applied to a tape or magnetic particle to reduce the remanent magnetization to zero.
  28. Cohesive force The force that holds a material together. The force that holds a material to itself.
  29. Cohesiveness See cohesive force.
  30. COLD (Computer Output to Laser Disk) an optical storage technology for transferring data to optical disk for near-online storage.
  31. command device A disk area in the HP StorageWorks XP series disk array used for internal system communication.
  32. Command Optimization Queuing commands for immediate execution without waiting for responses, which increases RAID performance.
  33. Common Internet File System (CIFS) Microsoft's file-sharing protocol that evolved from SMB.
  34. Community A political entity that has the authority to adopt and enforce floodplain ordinances for the area under its jurisdiction.
  35. consistency group A set of Symmetrix RDF devices that are configured to act in unison to maintain the integrity of a database.
  36. consistency point (CP) In Data ONTAP, the time at which data is written to disk.
  37. Console A scroll-shaped projecting bracket that supports a horizontal member.
  38. content delivery network (CDN) A network, or that portion of a network, built specifically to speed the delivery of Web-based content across the public Internet or private intranets.
  39. content provider Any company in the business of aggregating or producing content for delivery via the Internet.
  40. continental cluster A group of clusters that use routed networks and/or common carrier networks for data replication and cluster communication to support package failover…
  41. Continuous Access A facility provided by the Continous Access software option available with the HP StorageWorks E Disk Array XP series.
  42. controller An adapter card, RAID controller, or other module that interprets signals between a host and a eripheral device.
  43. Cookie A message given to a Web browser by a Web server. The browser stores the message in a text file.
  44. Copper Distributed Data Interface (CDDI) A version of FDDI that uses UTP wires rather than optical fiber.
  45. copy-on-write (COW) The technique for creating snapshots without consuming excess disk space.
  46. Core (Kor) the central part of anything, such as the central mass of necrotic matter in a boil.
  47. core dump The corpse of a "process", in the form of a file left in the "working directory" of the process, usually as a result of certain kinds of fatal error.
  48. core file The file that contains the contents of a core dump.
  49. COW A radioisotope generator system.
  50. CP Command Post.
  51. CRC Control and Reporting Center.
  52. CRC error Cyclic Redundancy Check error. A type of transmission error that may occur due to faulty network hardware, cabling, network interface cards, switch ports…
  53. cred Short for "credential." Access to files and directories is determined by the credentials of the requesting user.
  54. Cricket A Web-based system that uses SNMP for monitoring trends in time-series data. See also "MRTG."
  55. crossover cable A cable used to interconnect two computers by reversing, or "crossing over," their respective pin contacts.
  56. CRU Central Reexamination Unit
  57. CST (Cartridge System Tape) a standard length tape cartridge with a nominal uncompressed capacity of approximately 400 Mbytes.
  58. CTS (Cartridge Tape Subsystem) forms the data path between the cartridge library and the host system. It includes tape control units and tape cartridge transports.
  59. Curvature error A change in track shape that results in a bowed or S-shaped track. This becomes a problem if the playback head is not able to follow the track closely…
  60. customer-replaceable unit (CRU) Any field-replaceable unit (FRU) that can be replaced by the customer.
  61. cyclic redundancy check (CRC) An error-checking technique that helps ensure accurate transmission of digital data in a network.