Upgrading and Repairing Servers

Index

[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z]

U (rack units)

U factors

UDMA (Ultra-DMA)

     Mode 5

     Mode 6

UDP (User Datagram Protocol)

UL 1449 specification

UL 60601-1 medical electrical equipment

UL.com

ULi.com

Ultra 2 SCSI

Ultra 3 SCSI

Ultra ATA disk drives

Ultra ATA/100 disk drives

Ultra ATA/133 disk drives

Ultra ATA/66 disk drives

Ultra SCSI 2nd

Ultra160 SCSI 2nd

Ultra160+ SCSI

Ultra2 SCSI standard

Ultra3 SCSI standard

Ultra320 SCSI 2nd 3rd

Ultra4 SCSI 2nd

Ultra5 SCSI 2nd

Ultra640 SCSI 2nd

UltraBac

UltraSPARC processors 2nd

Ultrium

     data writing process

     development

     drive configuration and installation

     LTO-1 drive standard

     LTO-2 drive standard

     LTO-3 drive standard

     NVRAN chip calibration

     servo tracks

     Ultrium-1 (LTO format)

     Ultrium-2 (LTO format)

UMA (Upper Memory Area)

     adapter ROM

     host adapter BIOS

     IPL ROM

     motherboard BIOS

     shared memory

     video RAM

unbalanced signaling

unbuffered memory modules

Underwriters Laboratories (UL)

uninstalling NICs

uninterruptible power supplies [See UPSs (uninterruptible power supplies).]

Unisys 2nd

universal racks

Unix

     commands reference (Wikipedia.org)

     processes, viewing

     Solaris secure support

     Solaris support

     troubleshooting

unknown unknowns (capacity planning)

upgrading

     applications

     BIOS

     firmware

     hardware drivers

     motherboards

     multiple processors

     NICs

     processors 2nd

     RAM (random access memory)

         higher-capacity modules

         upgrade options and strategies

     ROM BIOS

         CMOS RAM backups

         flash ROM recovery

         flash ROM upgrades

         obtaining updates

         prerequisites

         version information

     servers

         administration requirements

         software

     tape backups

     upgrade licenses

Upper Memory Area [See UMA (Upper Memory Area).]

UPSs (uninterruptible power supplies)

     2N topologies

     alerts, nontransmittal of

     APC UPS Selector

     batteries

         non-charging problems

         shutdown settings

     COM port conflicts

     common configurations

         multiple rack-mounted servers

         pedestal servers

         single rack-mounted servers

     delta conversion online systems

     documentation

     double conversion online systems

     double-conversion online

     dual-processor servers

     ferro-resonant

     hard-wired

     line-interactive 2nd

     Linux servers

     N topologies

     Network UPS Tools website

     new installations

     power circuits table

     power factor correction (PFC) 2nd

     product selector website

     ratings

         JCS Custom PCs power use calculator

         power use calculations

         VA (volt-amp)

         vendor buying guides

     selection specifications

         AC connectors

         batteries

         recommended features

         runtimes

         server capacity and purpose

         voltages

     server room requirements

     service shutdowns

     standby

         standby-ferro systems

         typical configuration of

         VA (volt-amp) ratings

     system restart problems

     UL 60601-1 medical electrical equipment

     vendors

         American Power Conversion models

         Eaton PowerWare models

         Liebert (Emerson Power Network) models

         MGE UPS models

         MinuteMan models

         OneAC models

         Tripp Lite models

USB (universal serial bus)

     bus bandwidth speeds

     connectors

         pinouts

         Series A

         Series B

     flash storage readers

     functions

     hubs

     PnP (Plug and Play)

     self-identifying peripherals

     speed

     support for

     troubleshooting

     USB 2.0

USB.org

user passwords

Using Storage Area Networks Special Edition

USR.com

utilities [See software; tools (networks).]

UXD.com