Index_D

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D

Data

backing up of, See Backups

loss, fragmentation as cause of, 71

medium for recording, 63

mirroring of, 50

offsite replication of, 50–51

organization of, 62–64

priority of, 62–63

quantity of, 62

storage portal for, 52–54

Data center

assessment of, 139

cost analysis, 139–140

new technologies for streamlining of, 140

Data protection

approach to, 57–60

evaluation of, 55–57

storage-evolution approach, 126–129

Data recovery, snapshot technology for, 125–126

Data transfer, 222–223

Databases, 99–100

Datacenter Server (Windows 2000)

Dell PowerEdge 8450, 146

description of, 143–144

drawbacks of, 157–158

features of, 154–155

Fujitsu Siemens PRIMERGY N850, 146

Hewlett-Packard ProLiant DL7602G, 145–146

IBM x440, 146

mid-range hardware for, 144–146

Process Control tool, 156

RAM usage by, 156

server consolidation uses, 155

study of, 155–158

Unisys ES7000, 144–145

Defragger, Windows XP, 177–178

Defragmentation, See also Fragmentation

benefits of, 73

boot-time, 87

costs of, 89

description of, 9

disk optimization vs., 97

disk performance benefits, 101–102

file access benefits of, 73

hardware upgrades vs., 88–91

illustration of, 95

mechanism of action, 74

online, 78

page file, 77

performance testing, 78–85

safety issues, 78

scheduling of, 70–71

steps involved in, 85–88

Windows 2000

administrative privileges, 83–84

free space, 84

I/O overload, 85

priority settings, 83

running of, 81–82

scheduling, 83

thoroughness of, 84–85

Windows NT, 79–80

Windows XP, 80–81

Dell PowerEdge 8450, 146

Digital Millennium Copyright Act, 204

Direct memory access, 6

Directory quota, 104

Disaster recovery planning

catastrophic failure, 59–60

comprehensiveness of, 60

description of, 55

drilling, 61–62

hardware issues, 63–64

mission-critical elements, 61–62

networking issues, 64

non-catastrophic failure, 58–59

responsibility allocation in, 60

software issues, 64

tests of, 64

DISCO, See Discovery of web services

Discovery of web services, 188

Disk duplexing, 11

Disk management

future of, 221–226

importance of, 37–38

snapshot technology for, See Snapshot technology

storage-evolution approach, 126–129

tasks involved in, 38–41

Disk Management Console, 42–43

Disk mirroring, 122

Disk optimization

advantages and disadvantages of, 96–97

definition of, 93

defragmentation vs., 97

hard drive slowing, 93–94

history of, 94, 96

logical cluster numbers, 98–99

server uses, 99–100

system overhead used by, 97

Disk performance

caching for, 101

defragmentation for, 101–102

optimization of, See Disk optimization

RAID for, 100–101

Disk quotas

applications programming interfaces for, 104–105

definition of, 103

description of, 226

directory, 104

function of, 104

hard, 104

I/O filters for setting of, 106

management of, 104–106

new technology file system, 20

operating system integration of, 105–106

soft, 104

terminology associated with, 104

third-party alternatives for

case study of, 108

description of, 107

QuotaAdvisor, 108

upgrading to, 109

thresholds, 104–105

user, 104

Windows 2000, 103, 105–107

Windows NT, 103, 107

Windows XP, 180

Downtime, 60–61

Drilling, 61–62

Dynamic disks

Windows 2000

advantages of, 44

basic disks converted to, 43

description of, 40–41

Windows XP and, 43–44

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