Manual de instrucciones de IBM SSA

Manual de instrucciones del aparato IBM SSA

Aparato: IBM SSA
Categoría: Lector CD
Fabricante: IBM
Tamaño: 1.31 MB
Fecha de añadido: 1/24/2014
Número de páginas: 88
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Resúmenes de contenidos
Resumen del contenido incluido en la página 1

OEM FUNCTIONAL SPECIFICATION
ULTRASTAR XP (DFHC) SSA MODELS
1.12/2.25 GB - 1.0" HIGH
4.51 GB - 1.6" HIGH
3.5 FORM FACTOR DISK DRIVE
VERSION 5.0
August 15, 1995
Publication number 3304
IBM Corporation
Source filename=STSSHEXT IBM Corporation Page 1 of 87

Resumen del contenido incluido en la página 2

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH This document is preliminary and the contents are subject to change without notice. Equiries, suggestions, and requests for additional copies may be directed to: OEM Engineering IBM Corporation 5600 Cottle Road San Jose, CA 95193 (USA) IBM may use any information that you supply without incurring any obligation. IBM may have patents or pending patent applic

Resumen del contenido incluido en la página 3

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH Preface This document details the product hardware specification for the Ultrastar XP SSA family of Direct Access Storage Devices. The capacity model offerings are 1.12, 2.25, and 4.51 GBytes (see 2.1.1, “Capacity Equations” on page 13 for exact capacities based on model and block size). The form factor offerings are 'Brick On Sled' carrier and 3.5-inch sma

Resumen del contenido incluido en la página 4

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH Page 4 of 87 IBM Corporation Source filename=STSSHEXT

Resumen del contenido incluido en la página 5

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH Contents 1.0 Description .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 9 1.1 Features .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 9 1.1.1 General Features .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 9 1.1.2 Performance Summary .. .. .. .. .. .. .. .. .. .. .. .. ..

Resumen del contenido incluido en la página 6

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH 4.0 Mechanical .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 51 4.1 Small Form Factor Models (CxC) .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 51 4.1.1 Weight and Dimensions .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 51 4.1.2 Clearances .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..

Resumen del contenido incluido en la página 7

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH 7.1 Environmental .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 77 7.1.1 Temperature Measurement Points .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 77 7.2 Vibration and Shock .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 79 7.2.1 Drive Mounting Guidelines .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..

Resumen del contenido incluido en la página 8

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH Page 8 of 87 IBM Corporation Source filename=STSSHEXT

Resumen del contenido incluido en la página 9

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH 1.0 Description 1.1 Features 1.1.1 General Features 1.12/2.25/4.51 gigabytes formatted capacity (512 bytes/sector) Serial Storage Architecture (SSA) attachment (dual port) Brick On Sled carrier and 3.5" small form factor models Rotary voice coil motor actuator Closed-loop digital actuator servo (embedded sector servo) Magnetoresistive (MR) heads (0,8,6,infi

Resumen del contenido incluido en la página 10

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH Automatic sector reallocation In-line alternate sector assignment for high-performance Improved technique for down-loadable SSA firmware 1.1.4 Reliability Features Self-diagnostics on power up Dedicated head landing zone Automatic actuator latch Embedded Sector Servo for improving on-track positioning capability Buffer memory parity Longitudinal Redundancy

Resumen del contenido incluido en la página 11

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH 2.0 Specifications All specifications are nominal values unless otherwise noted. The Ultrastar XP SSA data storage capacities vary as a function of model and user block size. The emerging Industry trend is capacity points in 1.08GB (i.e. 1.08/2.16/4.32) at a block size of 512 bytes. This and future products will always plan to provide capacities that are co

Resumen del contenido incluido en la página 12

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH Total Cylinders (tcyl) All models C4x Models C2x Models C1x Models & User Cylinders (ucyl) tcyl ucyl ucyl ucyl Notch #1 1893 1879 1877 1872 Notch #2 956 955 955 955 Notch #3 49 48 48 48 Notch #4 310 309 309 309 Notch #5 349 348 348 348 Notch #6 116 115 115 115 Notch #7 214 213 213 213 Notch #8 190 189 189 189 Notch #9 131 130 130 130 Notch #10 208 206 206 2

Resumen del contenido incluido en la página 13

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH Notch # User bytes / 1 2 3 4 5 6 7 8 9 10 logical block 256 216 216 216 202 195 180 180 180 180 162 512 135 135 130 126 120 115 112 108 105 100 520 128 128 128 123 115 112 108 105 102 99 522 128 128 128 122 115 112 108 105 102 90 524 128 128 128 120 115 112 108 105 102 90 528 128 128 126 120 112 112 108 105 101 90 600 115 115 115 110 102 101 97 90 90 90 688

Resumen del contenido incluido en la página 14

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH 2.1.1.2 For Entire Drive 10 spares/drive (spr/drv) = spr/nch ∑ notch = 1 10 user sectors/drive (us/drv) = us/nch ∑ notch = 1 us/drv logical blocks/drive (lba/drv) = INT [ ] sct/lba user capacity (fcap) = (lba/drv)(ub/lba) Page 14 of 87 IBM Corporation Source filename=SPECS

Resumen del contenido incluido en la página 15

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH 2.2 Power Requirements by Model 2.2.1 C1x Models The following voltage specifications apply at the drive power connector. There is no special power on/off sequencing required. The extra power needed for Brick On Sled models and the +38V power option are described in 2.2.4, “CxB Models” on page 33. Input Voltage + 5 Volts Supply 5V (± 5% during run and spin-

Resumen del contenido incluido en la página 16

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH 2.2.1.1 Power Calculation Examples Note: The following formulas assume all system ops as a 1 block read or write transfer from a random cylinder while at nominal voltage condition. Example 1. Calculate the mean 12 volt average current. If we assume a case of 30 operations/second then to compute the sum of the 12 volt mean currents the following is done. mea

Resumen del contenido incluido en la página 17

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH Example 4. Calculate the 12 volt peak current. To compute the sum of the 12 volt peak currents the following is done. mean +12VDC (idle avg) 0.28 amps +12VDC (seek peak) 1.2 amps TOTAL 1.48 amps Example 5. Calculate the mean plus 3 sigma 12 volt peak current. To compute the sum of the 12 volt peak current's 1 sigma value assume all distributions are normal.

Resumen del contenido incluido en la página 18

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH Figure 1. 5 volt current during read/write operations —C1x Models 1. Read/write baseline voltage. 2. Read/write pulse. The width of the pulse is proportional to the number of consecutive blocks read or written. The 5 volt supply must be able to provide the required current during this event. Page 18 of 87 IBM Corporation Source filename=POWER

Resumen del contenido incluido en la página 19

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH Figure 2. Typical 12 volt current —C1x Models 1. Maximum slew rate is 7 amps/millisecond. 2. Maximum slew rate is 100 amps/millisecond. 3. Maximum slew rate is 7 amps/millisecond. 4. Maximum slew rate is 3 amps/millisecond. Source filename=POWER IBM Corporation Page 19 of 87

Resumen del contenido incluido en la página 20

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH Figure 3. Typical 12 volt spin-up current —C1x Models 1. Maximum slew rate is 20 amps/millisecond. 2. Current drops off as motor comes up to speed. Page 20 of 87 IBM Corporation Source filename=POWER


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