Information on devices managed is defined and stored
in the application's Management Information Base
(MIB).
SL_port.
See
segmented loop port
.
SMagent.
The DS3950 Storage Manager optional
Java-based host-agent software, which can be used on
Microsoft Windows, Novell NetWare, AIX, HP-UX,
Solaris, and Linux on POWER host systems to manage
storage subsystems through the host fibre-channel
connection.
SMclient.
The DS3950 Storage Manager client
software, which is a Java-based graphical user interface
(GUI) that is used to configure, manage, and
troubleshoot storage servers and storage expansion
enclosures in a DS3950 storage subsystem. SMclient can
be used on a host system or on a storage management
station.
SMruntime.
A Java compiler for the SMclient.
SMutil.
The DS3950 Storage Manager utility software
that is used on Microsoft Windows, AIX, HP-UX,
Solaris, and Linux on POWER host systems to register
and map new logical drives to the operating system. In
Microsoft Windows, it also contains a utility to flush
the cached data of the operating system for a particular
drive before creating a FlashCopy.
small computer system interface (SCSI).
A standard
hardware interface that enables a variety of peripheral
devices to communicate with one another.
small form-factor pluggable (SFP).
An optical
transceiver that is used to convert signals between
optical fiber cables and switches. An SFP is smaller
than a gigabit interface converter (GBIC). See also
gigabit interface converter
.
SNMP.
See
Simple Network Management Protocol
and
SNMPv1
.
SNMP trap event.
(1) (2) An event notification sent by
the SNMP agent that identifies conditions, such as
thresholds, that exceed a predetermined value. See also
Simple Network Management Protocol
.
SNMPv1.
The original standard for SNMP is now
referred to as SNMPv1, as opposed to SNMPv2, a
revision of SNMP. See also
Simple Network Management
Protocol
.
SRAM.
See
static random access memory
.
SSA.
See
serial storage architecture
.
static random access memory (SRAM).
Random
access memory based on the logic circuit know as
flip-flop. It is called static because it retains a value as
long as power is supplied, unlike dynamic random
access memory (DRAM), which must be regularly
refreshed. It is however, still volatile, meaning that it
can lose its contents when the power is turned off.
storage area network (SAN).
A dedicated storage
network tailored to a specific environment, combining
servers, storage products, networking products,
software, and services. See also
fabric
.
Storage Array Identifier (SAI or SA Identifier).
The
Storage Array Identifier is the identification value used
by the DS3950 Storage Manager host software
(SMClient) to uniquely identify each managed storage
server. The DS3950 Storage Manager SMClient program
maintains Storage Array Identifier records of
previously-discovered storage servers in the host
resident file, which allows it to retain discovery
information in a persistent fashion.
storage expansion enclosure (EXP).
A feature that can
be connected to a system unit to provide additional
storage and processing capacity.
storage management station.
A system that is used to
manage the storage subsystem. A storage management
station does not need to be attached to the storage
subsystem through the fibre-channel input/output
(I/O) path.
storage partition.
Storage subsystem logical drives
that are visible to a host computer or are shared among
host computers that are part of a host group.
storage partition topology.
In the DS3950 Storage
Manager client, the Topology view of the Mappings
window displays the default host group, the defined
host group, the host computer, and host-port nodes.
The host port, host computer, and host group
topological elements must be defined to grant access to
host computers and host groups using logical
drive-to-LUN mappings.
striping.
Splitting data to be written into equal blocks
and writing blocks simultaneously to separate disk
drives. Striping maximizes performance to the disks.
Reading the data back is also scheduled in parallel,
with a block being read concurrently from each disk
then reassembled at the host.
subnet.
An interconnected but independent segment
of a network that is identified by its Internet Protocol
(IP) address.
sweep method.
A method of sending Simple Network
Management Protocol (SNMP) requests for information
to all the devices on a subnet by sending the request to
every device in the network.
switch.
A fibre-channel device that provides full
bandwidth per port and high-speed routing of data by
using link-level addressing.
switch group.
A switch and the collection of devices
connected to it that are not in other groups.
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