Dell EMC ML3 User Manual page 190

PTF Program temporary fix. A single bugfix or group of bugfixes that are distributed in a form ready
to install for customers.
PWR Power.
R
Rack A unit that houses the components of a storage subsystem, such as the library.
Rackmount kit
A packaged collection of articles that are used to install the rack-mounted version of the library.
RAM Random access memory.
Random access memory
A storage device into which data is entered and from which data is retrieved in a nonsequential
manner.
RAS Reliability, availability, and serviceability.
Record
A collection of related data or words, which are treated as a unit.
Recording density
The number of bits in a single linear track measured per unit of length of the recording medium.
Recoverable error
An error condition that allows continued execution of a program.
Ref Reference.
Reg Register.
Reinventory
To inventory again.
REST Representational state transfer. Part of an API. REST systems aim for fast performance, reliability,
and the ability to grow, by reusing components that can be managed and updated without
affecting the system as a whole, even while it is running.
Retension
The process or function of tightening the tape onto the cartridge, if it is sensed that the tape has a
loose wrap on the cartridge.
RFC (Request for Comments)
Request for Comments (RFC) documents are a series of memoranda, which encompasses new
research, innovations, and methodologies applicable to Internet technologies.
RH Relative humidity.
RML Rack Mount Line.
Robot Picker.
Robotic Assembly
The picker, picker assembly.
Robotics
Picker assembly.
Root CA certification
In cryptography, a root certificate from a certificate authority (CA).
RPQ Request for price quotation.
RSA key
Encryption key type.
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Dell EMC ML3 Tape Library: User's Guide