Hitachi AMS 2100 Hardware Manual page 299

SCSI
Small Computer System Interface. A parallel interface standard that
provides faster data transmission rates than standard serial and parallel
ports.
SED
Self Encrypting Drive
Session
A series of communications or exchanges of data between two end
points that occurs during the span of a single connection. The session
begins when the connection is established at both ends, and terminates
when the connection is ended. For some applications each session is
related to a particular port. In this document a session is the exchange
of data between groups of primary and secondary volumes.
SMTP
Simple Mail Transfer Protocol. A protocol used to receive and store
email data directly from email servers.
Software initiator
A software application initiator communicates with a target device. A
software initiator does not require specialized hardware because all
processing is done in software, using standard network adapters.
Spare disk
A disk drive which is mounted separately from the disk drives for usual
write and read operation. When a failure occurs in a disk drive, data
stored in the failed drive is copied to the spare disk drive so that the
disk array subsystem can continue to be available to the original
subsystem.
SSD
Solid State Disk (drive). A data storage device that uses solid-state
memory to store persistent data. An SSD emulates a hard disk drive
interface, thus easily replacing it in most applications.
Storage Navigator Modular 2
A multi-featured scalable storage management application that is used
to configure and manage the storage functions of Hitachi arrays. Also
referred to as "Navigator 2".
Subnet
In computer networks, a subnet or subnetwork is a range of logical
addresses within the address space that is assigned to an organization.
Subnetting is a hierarchical partitioning of the network address space of
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Hitachi AMS 2100/2300 Storage System Hardware Guide
M N M N O P Q R S T U V W X Y R S T Z
Glossary–7