UPGRADING REPAIRING PCs

More documents

Recommendations

Info

158 Chapter 5—Floppy, Removable, Tape, and Flash Storage Table 5.11 QIC-EX Tape Media Capacity/ Verbatim Capacity/ Original Tape Compressed 2:1 QIC-Extra Compressed 2:1 QIC-801 normal length (DC-2120) 125MB/250MB DC2120EX 400MB/800MB QIC-80 longer length (DC-2120XL) 170MB/340MB DC2120EX 400MB/800MB QW5122 210MB/420MB DC2120EX 400MB/800MB Travan 1 (TR-1) 400MB/800MB DC2120EX 400MB/800MB Travan 1 (TR-1) 400MB/800MB TR-1EX 500MB/1.0GB QIC-30202 680MB/1.36GB MC3020EX 1.6GB/3.2GB QW-3020 850MB/1.7GB MC3020EX 1.6GB/3.2GB Travan 3 (TR-3) 1.6GB/3.2GB MC3020EX 1.6GB/3.2GB QIC-30202 680MB/1.36GB TR-3EX 2.2GB/4.4GB Travan 3 (TR-3) 1. Also known as “Ximat” 2. Also known as “Taumat” 1.6GB/3.2GB TR-3EX 2.2GB/4.4GB General guidelines only are shown in the previous table. Check with the drive and backup software vendor to verify compatibility and maximum capacity with your drive. A more detailed crossreference listing of many popular drive models is available online at www.ceservice.com/crossrefverbatim.htm. OnStream ADR Tape Drives and Media OnStream ADR drives offer both standard drive-backup features and the capability to treat the cartridge as a drive letter for faster access to data. Since their introduction in 1998, these have become very popular for new installations. Unlike Travan drives, though, they do not work with any media other than their own ADR cartridges. Table 5.12 OnStream ADR Family Specifications Drive Model Interface Performance Retail Media Used DI30 IDE ATAPI 1–2MB/sec $299 ADR 30GB DP30 Parallel .7–1.4MB/sec $399 ADR 30GB USB30 USB .85–1.7MB/sec $399 ADR 30GB SC30 SCSI internal 2–4MB/sec $499 ADR 30GB SC30 SCSI external 2–4MB/sec $599 ADR 30GB FW30 IEEE-1394 (FireWire) 2–4MB/sec $599 ADR 30GB SC50 SCSI internal 2–4MB/sec $699 ADR 50GB or 30GB ADR50 Int LVD SCSI internal 4–8MB/sec $799 ADR 50GB or 30GB ADR50 Ext LVD SCSI external 4–8MB/sec $949 ADR 50GB or 30GB
Tape Backup Drives and Media 159 Choosing the Best High-Performance Backup Technology Beyond Travan and ADR, several other high-performance backup technologies exist. All these technologies are available in various SCSI interface versions and can be purchased as internal or external drives. However, these drives are much more expensive than Travan or OnStream ADR drives. Additionally, they are more likely to be used as network tape backups than as individual PC backups, although current 20GB or larger EIDE hard drives are large enough to justify use of these drives for backup. Unlike the confusing backward-compatibility picture for QICfamily drives, the more advanced drives in each family are backward compatible with smaller drives. Table 5.13 summarizes the performance and other characteristics of these tape technologies and compares them to Travan 8GB, 20GB, and OnStream ADR. The prices of the tape drives vary tremendously depending on which version of SCSI is selected, whether the drive is internal or external, and whether a single-tape or tape library drive is selected. The approximate price range listed is for internal and external, single-cartridge tape drives. The following standards are listed in order by native capacity. All drive interfaces are SCSI except as noted. Table 5.13 High-Performance Tape Backup Standards Compared Backup Speed Capacity/2:1 (Native/ Drive Price Media Drive Type Compressed Compressed) Range Cost DAT DDS-2 4GB/8GB .5–1.1MB/sec $500–$800 $9–$13 Travan 8GB and NS8 4GB/8GB .6–1.2MB/sec $200–$380 $32–$38 Exabyte 8mm (Eliant 820) 7GB/14GB 1–2MB/sec $1200 $10 Travan 20GB and NS20 10GB/20GB 1–2MB/sec $340–$470 $35–$42 DAT DDS-3 12GB/24GB 1.1–2.2MB/sec $700–$1000 $18–$23 Exabyte 8mm (Mammoth-LT) 14GB/28GB 2–4MB/sec $1200–$1500 $40 ADR 30GB 15GB/30GB 1–2MB/sec IDE 2–4MB/sec SCSI $299–$599 $40 DAT DDS-4 20GB/40GB 2–4.8MB/sec $1000–$1500 $35–$40 Exabyte 8mm (Mammoth) 20GB/40GB 3–6MB/sec $2200–$3000 $65–$70 AIT-1 25GB/50GB or 35GB/70GB 3–6MB/sec $1500–$2000 $75–$100
Page 1 and 2:
UPGRADING AND REPAIRING PCs TECHNIC
Page 3 and 4:
Associate Publisher Greg Wiegand Se
Page 5 and 6:
Contents 1 General Technical Refere
Page 7 and 8:
Contents vii IDE Hard Drive Identif
Page 9 and 10:
Serial Port Configuration 172 Avoid
Page 11 and 12:
Contents xi Sound Quality Standards
Page 13 and 14:
About the Authors Scott Mueller is
Page 15 and 16:
watch, photograph, and (occasionall
Page 17 and 18:
Tell Us What You Think! As the read
Page 19 and 20:
Chapter 1 General Technical Referen
Page 21 and 22:
Understanding Bits, Nibbles, and By
Page 23 and 24:
Note Glossary of Essential Terms 5
Page 25 and 26:
Glossary of Essential Terms 7 Table
Page 27 and 28:
Glossary of Essential Terms 9 Table
Page 29 and 30:
Table 1.5 Hexadecimal/ASCII Convers
Page 31 and 32:
Hexadecimal/ASCII Conversions 13 Ta
Page 33 and 34:
Table 1.5 Hexadecimal/ASCII Convers
Page 35:
Hexadecimal/ASCII Conversions 17 Ta
Page 38 and 39:
20 Chapter 2—System Components an
Page 40 and 41:
Page 42 and 43:
Page 44 and 45:
Page 46 and 47:
Page 48 and 49:
Page 50 and 51:
Page 52 and 53:
Page 54 and 55:
36 Caution Chapter 2—System Compo
Page 56 and 57:
38 Table 2.15 Troubleshooting Power
Page 58 and 59:
Page 60 and 61:
Page 62 and 63:
44 modules can be divided by 9, but
Page 64 and 65:
Page 66 and 67:
Page 68 and 69:
50 Other Add-On Card Configuration
Page 70 and 71:
Page 72 and 73:
Page 74 and 75:
Page 76 and 77:
Page 78 and 79:
Page 80 and 81:
Page 82 and 83:
Page 84 and 85:
Page 87 and 88:
Chapter 3 3 BIOS Configurations and
Page 89 and 90:
Where BIOS Updates Come From 71 Tab
Page 91 and 92:
How to Recover from a Failed BIOS U
Page 93 and 94:
Note A complete list of PnP device
Page 95 and 96:
Other BIOS Troubleshooting Tips 77
Page 97 and 98:
Determining the Motherboard Manufac
Page 99 and 100:
Determining the Motherboard Manufac
Page 101 and 102:
Table 3.8 Common Keystrokes Used to
Page 103 and 104:
Phoenix BIOS Beep Codes The followi
Page 105 and 106:
Port 80h Beep Code Codes Error Mess
Page 107 and 108:
BIOS Configuration Worksheet 89 BIO
Page 109 and 110:
BIOS Configuration Worksheet 91 Sha
Page 111 and 112:
4 SCSI and IDE Hard Drives and Opti
Page 113 and 114:
Cable key prevents improperly plugg
Page 115 and 116:
Breaking the 504MB (528-Million-Byt
Page 117 and 118:
Table 4.3 Using LBA Mode Operating
Page 119 and 120:
5. Use the #4 option—View Current
Page 121 and 122:
Using LBA Mode 103 Table 4.6 Why ID
Page 123 and 124:
Sources for BIOS Upgrades 105 Table
Page 125 and 126: Improving Hard Disk Speed 107 Figur
Page 127 and 128: Bus-Mastering Chipsets for IDE 109
Page 129 and 130: Table 4.13 Bus-Mastering Chipsets b
Page 131 and 132: Table 4.14 Other IDE Drive Installa
Page 133 and 134: standard single-ended SCSI devices
Page 135 and 136: SCSI Drive and Device Configuration
Page 137 and 138: SCSI Drive and Device Configuration
Page 139 and 140: Following these tips will help mini
Page 141 and 142: SCSI Configuration Troubleshooting
Page 143 and 144: Using FDISK 125 Using FDISK FDISK i
Page 145 and 146: Benefits of Hard Disk Partitioning
Page 147 and 148: How FDISK and the Operating System
Page 149 and 150: How FDISK and the Operating System
Page 151 and 152: Now, the operating system can use t
Page 153 and 154: The command switches are explained
Page 155 and 156: MS-DOS Command-Line Access to CD-RO
Page 157 and 158: • Make sure the drive shows up as
Page 159: Troubleshooting Optical Drives 141
Page 162 and 163: 144 Chapter 5—Floppy, Removable,
Page 174 and 175: 156 • OnStream’s ADR (Advanced
Page 178 and 179: 160 Table 5.13 High-Performance Tap
Page 184 and 185: 166 Chapter 6—Serial Ports and Mo
Page 186 and 187: 168 Table 6.2 25-Pin (PC, XT, and P
Page 188 and 189: 170 Table 6.4 Overview of UART Chip
Page 206 and 207: 188 (These settings require changes
Page 208 and 209: 190 Chapter 7—Parallel Ports, Pri
Page 210 and 211: 192 Building a Parallel Loopback Pl
Page 222: 204 Chapter 7—Parallel Ports, Pri
show all

UPGRADING REPAIRING PCs

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?