Spectra Logic T-Series Spectra T50e User Manual page 254

Glossary of Terms — D
CoD A capacity-on-demand feature of Spectra Logic libraries. Purchasing and
entering a key code in the library enables additional slots in the Spectra
T50e, which provides for additional storage capacity.
D
DAS Direct Attached Storage.
DHCP Dynamic Host Configuration Protocol. A protocol for assigning dynamic
IP addresses to devices on a network. With dynamic addressing, a device
can have a different IP address every time it connects to the network. In
some systems, the device's IP address can even change while it is still
connected. DHCP also supports a mix of static and dynamic IP addresses.
E
EDU Endura Decryption Utility is a command-line data decryption utility that
can be installed on any computer running the Linux operating system, to
be used if no Spectra library is available at time of data decryption and
restoration. To use EDU, attach the recommended two tape drives to the
Linux host running the utility, then use EDU to decrypt data from the
encrypted tape and write the decrypted data back to tape. If you have only
one tape drive, make sure that the Linux host has enough available disk
space to store the data as it's decrypted from the tape. Once the data is
decrypted and written to tape, it can then be restored using backup
software.
Endura Key The software that permits encryption key creation, deletion, and
Management
management, all within the library. Use the library front panel or a web
browser to manage the library and encryption.
F
failover The automatic substitution of a functionally equivalent system component
for a failed one. Failover provides fault tolerance in a system by protecting
against single failures.
FH
Used in the tape drive identifier to indicate that the tape drive is a full-
height tape drive.
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User Guide 90970015