Dell PowerVault DL2000 User Manual Page 176
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176 Glossary
pixel — A single point on a video display. Pixels are arranged in rows and columns to
create an image. A video resolution, such as 640 x 480, is expressed as the number of
pixels across by the number of pixels up and down.
POST — Power-on self-test. Before the operating system loads when you turn on your
system, the POST tests various system components such as RAM and hard drives.
processor — The primary computational chip inside the system that controls the
interpretation and execution of arithmetic and logic functions. Software written for
one processor must usually be revised to run on another processor. CPU is a synonym
for processor.
protected mode — An operating mode that allows operating systems to implement:
• A memory address space of 16 MB to 4 GB
• Multitasking
• Virtual memory, a method for increasing addressable memory by using the hard drive
The Windows 2000 and UNIX 32-bit operating systems run in protected mode.
MS-DOS cannot run in protected mode.
PS/2 — Personal System/2.
PXE — Preboot eXecution Environment. A way of booting a system via a LAN
(without a hard drive or bootable diskette).
RAID — Redundant array of independent disks. A method of providing data
redundancy. Some common implementations of RAID include RAID 0, RAID 1,
RAID 5, RAID 10, and RAID 50. See also guarding, mirroring, and striping.
RAM — Random-access memory. The system’s primary temporary storage area for
program instructions and data. Any information stored in RAM is lost when you turn
off your system.
RAS — Remote Access Service. This service allows users running the Windows
operating system to remotely access a network from their system using a modem.
readme file — A text file, usually shipped with software or hardware, that contains
information supplementing or updating the product’s documentation.
read-only file — A read-only file is one that you are prohibited from editing or
deleting.
ROM — Read-only memory. Your system contains some programs essential to its
operation in ROM code. A ROM chip retains its contents even after you turn off your
system. Examples of code in ROM include the program that initiates your system’s
boot routine and the POST.
ROMB — RAID on motherboard.
rpm — Revolutions per minute.
Book.book Page 176 Monday, September 14, 2009 12:57 PM
- Hardware Owner’s Manual 1
- Notes, Notices, and Cautions 2
- Contents 3
- 4 Contents 4
- 6 Contents 6
- 8 Contents 8
- 10 Contents 10
- About Your System 11
- 14 About Your System 14
- Hard-Drive Indicator Codes 15
- Power Indicator Codes 18
- NIC Indicator Codes 19
- LCD Status Messages 20
- N/A SYSTEM NAME 21
- The SYSTEM NAME 21
- 22 About Your System 22
- NOTE: The LCD continues to 23
- 24 About Your System 24
- 26 About Your System 26
- 28 About Your System 28
- 30 About Your System 30
- Removing LCD Status Messages 31
- System Messages 32
- 34 About Your System 34
- 36 About Your System 36
- 38 About Your System 38
- 40 About Your System 40
- 42 About Your System 42
- Warning Messages 43
- Diagnostics Messages 44
- Alert Messages 44
- Responding to Error Messages 45
- System Setup Options 46
- Memory Information Screen 49
- CPU Information Screen 50
- Integrated Devices Screen 51
- Serial Communication Screen 53
- System Security Screen 53
- Exit Screen 56
- Using the System Password 56
- Assigning a System Password 57
- Using the Setup Password 59
- Entering the BMC Setup Module 61
- BMC Setup Module Options 61
- Inside the System 64
- Front Bezel 65
- Replacing the Front Bezel 66
- Opening the System 67
- Closing the System 67
- Hard Drives 68
- Before You Begin 69
- Removing a Drive Blank 69
- Installing a Drive Blank 70
- Hard-Drive Carrier 73
- SATAu SAS 75
- Power Supplies 76
- Replacing a Power Supply 77
- System Fans 78
- Replacing a Cooling Fan 79
- Cooling Shroud 80
- Fan Brackets 81
- Replacing the Fan Bracket 82
- Cable Routing 83
- SAS Controller Daughter Card 85
- Configuring the Boot Device 87
- Expansion Cards 88
- Removing an Expansion Card 90
- Expansion-Card Cage 91
- DRAC Card and Cables 93
- Optical Drive and Cable 96
- Installing the Optical Drive 97
- System Memory 100
- Memory Sparing Support 101
- Memory Mirroring Support 101
- Installing Memory Modules 102
- Removing Memory Modules 104
- Processors 105
- Installing a Processor 108
- System Battery 110
- Expansion-Card Riser Boards 112
- Sideplane Board 116
- SAS Backplane Board 118
- Removing the System Board 124
- Installing the System Board 127
- Installing System Components 128
- Troubleshooting Your System 129
- Checking the Equipment 130
- Troubleshooting the Keyboard 132
- Troubleshooting the Mouse 133
- Troubleshooting a USB Device 134
- Troubleshooting a NIC 136
- Troubleshooting a Wet System 137
- Troubleshooting a Fan 141
- Troubleshooting System Memory 142
- Troubleshooting a Hard Drive 146
- System Diagnostics Features 153
- Using the Custom Test Options 155
- Jumpers and Connectors 157
- System Board Connectors 158
- 160 Jumpers and Connectors 160
- Sideplane Board Connectors 162
- PCI Buses 162
- Jumpers and Connectors 165 165
- 166 Jumpers and Connectors 166
- Getting Help 167
- 168 Getting Help 168
- Glossary 169
- 170 Glossary 170
- 172 Glossary 172
- 174 Glossary 174
- 176 Glossary 176
- 178 Glossary 178
- 180 Glossary 180
- Index 181 181
- Index 183 183
- Index 185 185
- Index 187 187
- 188 Index 188
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