B

backup hardware, offsite replication, 553

backups. See also recovery

frequency and scheduling, 525

media rotation, 525–527

online methods, 522–523

performance demands of, 166

system design and, 100–101

testing, 522

types of, 524

verifying, 531–534

Windows Backup for, 527–531

bandwidth

connecting users to network and, 101

Hub Transport server role requirements, 116

network assessment and, 77–78

baselines, ExBPA, 706, 710

Best Practices Analyzer. See ExBPA (Exchange Best Practices Analyzer)

boot.ini configuration file, 122

bottlenecks

disk drives, 740

performance bottlenecks, 741–743

BPA (Best Practices Analyzer). See ExBPA (Exchange Best Practices Analyzer)

brick-level backup, 523

b-tree structure, Exchange databases, 522