Snmp; State; Stripe Size; Subnet Mask - American Megatrends StorTrends 1100-P User Manual

SNMP

Short for Simple Network Management Protocol, a set of protocols for managing
complex networks. The first versions of SNMP were developed in the early 80s. SNMP
works by sending messages, called protocol data units (PDUs), to different parts of a
network. SNMP-compliant devices, called agents, store data about themselves in
Management Information Bases (MIBs) and return this data to the SNMP requesters.

State

A state is a text description or status used to describe whether or not the hardware feature
is within reasonable temperature, voltage, or revolutions per minute thresholds.

Stripe Size

Disk striping writes data across multiple hard disk drives instead of just one hard disk
drive. Disk striping involves partitioning each hard disk drive storage space into stripes
that can vary in size. These stripes are interleaved in a repeated sequential manner. The
combined storage space is composed of stripes from each drive. StorTrends® iTX
software supports stripe sizes of 8 KB to 512 KB.
For example, in a four hard disk drive system using only disk striping (as in RAID level
0), segment one is written to hard disk drive one, segment two is written to hard disk
drive two, and so on. Disk striping enhances performance because multiple hard disk
drives are accessed simultaneously; but disk striping does not provide data redundancy.

Subnet Mask

A mask used to determine what subnet an IP address belongs to. An IP address has two
components, the network address and the host address. Subnetting enables the network
administrator to further divide the host part of the address into two or more subnets. A
part of the host address is reserved to identify the particular subnet.

Switch

A network device that selects a path or circuit for sending a unit of data to its next
destination.

Target Discovery

For an iSCSI initiator to discover iSCSI targets, it needs to identify which devices in the
network are storage resources and what IP addresses it needs to access them. A query to
an iSNS server consequently returns a list of IP addresses that the initiator has permission
to access.
TCP
Transmission Control Protocol. One of the main protocols in TCP/IP networks. Enables
two hosts to establish a connection and exchange streams of data.

TCP/IP

Transmission Control Protocol/Internet Protocol, the suite of communications protocols
used to connect hosts on the Internet. TCP/IP uses several protocols, the two main ones
being TCP and IP.
150 ManageTrends (version 2.6) Web Interface User's Guide