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16 Dell PowerVault 720N, 740N, and 760N Users Guide
64/
Abbreviation for Structured Query
Language.
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In composite drivers with two or more
physical drives, the drive array subsystem
uses a method of data storage called strip-
ing. With this method, data is divided into
a series of pieces called blocks and each
data block is stored on a different physical
drive. When each drive contains a block
of data, the process starts over with the
first physical drive. By carefully selecting
the size of the data block, the chance that
the information needed can be read from
or written to multiple physical drives at
once is increased, greatly increasing the
performance of the composite drive. See
also block, block size, and RAID.
65$0
Abbreviation for static random-access
memory. Because SRAM chips do not
require continual refreshing, they are sub-
stantially faster than DRAM chips. SRAM
is used mostly for external cache
memory.
69*$
Abbreviation for super video graphics
array. See also VGA.
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See parameter.
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Sync negotiation is a SCSI feature that
allows the host adapter and its attached
SCSI devices to transfer data in synchro-
nous mode. Synchronous data transfer is
faster than asynchronous data transfer.
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The rules that dictate how you must type
a command or instruction so that the com-
puter will understand it.
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As the main circuit board, the system
board usually contains most of your filers
integral components, such as the micro-
processor, RAM, and expansion-card
connectors.
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System diskette is a synonym for
bootable
diskette
.
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System memory is a synonym for
RAM
.
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System Setup program options allow you
to configure your computers hardware.
Some options in the System Setup
program require that you reboot the
computer in order to make a hardware-
configuration change. Because the Sys-
tem Setup program is stored in NVRAM,
any options that you set remain in effect
until you change them again.
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When you start Windows, it consults the
system.ini file to determine a variety of
options for the Windows operating
environment. Among other things, the
system.ini file records which video, mouse,
and keyboard drivers are installed for
Windows.
Running the Control Panel or Windows
Setup program may change options in the
system.ini file. On other occasions, you
may need to change or add options to the
system.ini file manually with a text editor,
such as Notepad.
7&3,3
Abbreviation for Transmission Control
Protocol/Internet Protocol.
7,5&3
Abbreviation for Transport Independent
Remote Procedure Call.
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Some devices, especially disk drives, con-
tain a terminator to absorb and dissipate
excess current. When more than one
such device is connected in a series, you
may need to remove the terminatoror
change a jumper setting to disable itun-
less it is the last device in the series.
However, some devices have terminators
that should never be removed or disabled.