Page 2 - Notice
Notice While Compaq Computer Corporation believes the information included in this manual is correct as of the date of publication, it is subject to change without notice. Compaq makes no representations that the interconnection of its products in the manner described in this document will not infri...
Page 3 - Contents; About This Guide; Chapter 1; Introducing the Enclosure; Chapter 2; Starting the Enclosure; Chapter 3
Contents About This Guide Chapter 1 Introducing the Enclosure Disk Enclosure Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2 SCSI Buses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 4 - Chapter 4; Disk Drives; Chapter 5; Enclosure Power and Cooling; Chapter 6; Replacing CRUs; Appendix A; Regulatory Notices; Appendix B; Specifications
iv Enclosure 4200 Family LVD Disk Enclosures Users Guide Single-Bus Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2 SCSI Bus Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 5 - Glossary
Contents v Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–4Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–5 Glossary Index
Page 6 - List of Figures
List of Figures Figure 1–1. Disk Enclosure (Front View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1Figure 1–2. Disk Enclosure (Rear View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2Figure 1–3. Front Mounted Elements ...
Page 7 - List of Tables
List of Tables Table 1 Documentation Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi iiTable 2 Related Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvTable 1–1 CRU Replace...
Page 8 - Intended Audience; Chapter 1, “Introducing the Enclosure”
About This Guide Intended Audience This publication is designed for use by Compaq StorageWorks users who are responsible for installing and maintaining the Model 4214R (rack) and 4214T (tower) Ultra2 SCSI low voltage differential (LVD) disk enclosures. How this Guide is Arranged This manual discusse...
Page 10 - Documentation Conventions; Table 1 Documentation Conventions
xiii Documentation Conventions The documentation conventions used in this publication are shown in Table 1. Table 1 Documentation Conventions Symbol Description Boldface type Boldface type indicates the first instance of terms being defined in the text, the glossary, or both. italic type Italic type...
Page 11 - Table 1 Documentation Conventions (Continued)
xiv Enclosure 4200 Family LVD Disk Enclosures Users Guide I/O module LED label Power Status (O N ) or EMU Locate (F LASHING ) LED (green) I/O module labelUltra2 SCSI, Single Bus, LVD input connector Light emitting diode (LED) is O FF . LED is F LASHING . LED is O N . Table 1 Documentation Convention...
Page 12 - Related Documents; Table 2 Related Publications
xv Related Documents Table 2 lists publications that contain additional information relevant to the LVD disk enclosure products. Table 2 Related Publications StorageWorks Publication Title Part Number Disk Enclosure RETMA Rack Mounting Kit Installation Card 127430-001 Disk Enclosure RETMA Rack Mount...
Page 13 - Chapter
Chapter 1 Introducing the Enclosure This chapter describes of the StorageWorks Enclosure 4200 family of low voltage differential (LVD) disk enclosures (see Figure 1–1 and Figure 1–2). These enclosures support Wide-Ultra and Wide-Ultra2 small computer system interface (SCSI) protocols. The internal b...
Page 14 - Disk Enclosure Features
1–2 Enclosure 4200 Family LVD Disk Enclosures User Guide Figure 1–2. Disk Enclosure (Rear View) Disk Enclosure Features The Model 4214 enclosure supports up to fourteen, 1-inch high, 3.5-inch form factor hard disk drives. This enclosure is available in either a rack mountable version (4214R) or in a...
Page 15 - SCSI Buses; Variable Speed Fans; Data Integrity
Introducing the Enclosure 1–3 SCSI Buses The enclosure supports only Wide-Ultra2 SCSI, wide (16-bit), internal LVD buses. Depending on the host interface, the external SCSI bus, the bus from the I/O module to the host can be either Wide-Ultra or Wide-Ultra2, LVD or SE. The SCSI bus type determines t...
Page 16 - Status Monitoring and Display; Enclosure Layout
1–4 Enclosure 4200 Family LVD Disk Enclosures User Guide Status Monitoring and Display The major status monitoring capabilities of these enclosures include: ■ Displaying the enclosure status on the enclosure LEDs ■ Displaying the element status on the power supply, EMU, drive, and I/O module LEDs ■ ...
Page 18 - Major Elements; Element Functions; Table 1–1 CRU Replacement Methods
1–6 Enclosure 4200 Family LVD Disk Enclosures User Guide Major Elements The elements each enclosure requires for proper operation include: ■ An EMU ■ Two power supplies, or1 power supply and 1 fan mounting assembly ■ Two Fans ■ An I/O module ■ A disk drive or disk drive blank in each bay Element Fun...
Page 19 - Table 1–1 CRU Replacement Methods (Continued)
Introducing the Enclosure 1–7 Fan Hot-pluggable I/O Module Hot-pluggable Power Supply–Dual Hot-pluggable Power Supply–Single No Power Applied 1 SCSI Bus Cables Pluggable 1. In a single power supply configuration, the enclosure is disabled when the power supply fails. Table 1–1 CRU Replacement Method...
Page 20 - Connecting the SCSI Bus Cables
Chapter 2 Starting the Enclosure With the enclosure installed in a rack or tower it is necessary to: 1. Connect the SCSI bus cables. 2. Apply power. 3. Verify proper operation. Connecting the SCSI Bus Cables Connecting the enclosure to a host adapter or SCSI bus controller is simply a matter of conn...
Page 21 - Table 2–1 SCSI Bus Cables
2–2 Enclosure 4200 Family LVD Disk Enclosures User Guide Figure 2–1. Single Bus Cable Connection Table 2–1 lists the host array controller cables available. As for any SCSI bus, using the shortest length cable possible enhances performance. 1 Primary host controller connector Table 2–1 SCSI Bus Cabl...
Page 23 - Applying Power; Table 2–2 Installing SCSI Bus Cables
2–4 Enclosure 4200 Family LVD Disk Enclosures User Guide Applying Power There are no disk enclosure power control switches. Connecting an AC power cord from a power source to the power supply is all that is required. When a power supply has an AC input, it develops and distributes DC voltages within...
Page 24 - Figure 2–3. Rear Status LEDs
Starting the Enclosure 2–5 NOTE: There are two different drive displays for a properly functioning disk. Figure 2–2. Front Status LEDs Figure 2–3. Rear Status LEDs CXO6919A CXO6982A
Page 26 - Module Power Protection
3–2 Enclosure 4200 Family LVD Disk Enclosures User Guide Figure 3–1. Single-Bus I/O Module Module Power Protection A sensor on the +5 VDC line in the module detects overcurrent conditions. Should this error occur, the sensor disconnects the voltage from the module and the power LED is O FF (see Figu...
Page 28 - SCSI Address Map; Replacing an I/O Module; Table 3–1 Single-Bus Module LED Displays; Table 3–2 Disk Enclosure Bay Addresses
3–4 Enclosure 4200 Family LVD Disk Enclosures User Guide SCSI Address Map The module assigns a SCSI address to each drive bay in the enclosure using a SCSI address map. The active map (see Table 3–2) is determined by a combination of: ■ Backplane ■ EMU ■ I/O module Each disk drive bay and each contr...
Page 30 - Status Reporting; Disk Status; Table 4–1 Disk LED Status Displays
4–2 Enclosure 4200 Family LVD Disk Enclosures User Guide Status Reporting The three disk drive status LEDs (see Figure 4–2) define the operational status of each drive. To determine the drive status you must observe all three LEDs (see Table 4–1). Figure 4–2. Disk Drive LEDs Display Disk Status The ...
Page 31 - Table 4–1 Disk LED Status Displays (Continued)
Disk Drives 4–3 Operational Status (Continued) Drive not being accessedDrive is being rebuilt or Array Capacity expansion in progressDrive Operational D O NOT REPLACE DRIVE Drive not being accessedDrive configured as part of an arrayDrive Operational D O NOT REPLACE DRIVE Drive selected using the Ar...
Page 32 - Drive Power; Drive Blank
4–4 Enclosure 4200 Family LVD Disk Enclosures User Guide Drive Power Backplane overcurrent sensors monitor the +5 VDC and +12VDC drive voltages. When there is a drive overcurrent condition the sensor disconnects the voltage from the drive. This disables the drive, ensuring that no data is written to...
Page 33 - Replacing a Disk
Disk Drives 4–5 Replacing a Disk Replacing a disk requires you to order a replacement using the spare part number (see Chapter 6, “Replacing CRUs”). The disk replacement kit contains detailed replacement instructions. CAUTION: Removing more than one disk drive at a time can cause the enclosure to ov...
Page 35 - Enclosure Power; Power Options
5–2 Enclosure 4200 Family LVD Disk Enclosures User Guide Enclosure Power The power supply and fan assembly mount in the rear of the enclosure. The supply is auto-ranging and operates on an AC input voltage of 100 to 240 VAC ±10%, 50 to 60 Hz ± 5% (90 to 264 VAC, 47 to 63 Hz). There are three DC outp...
Page 36 - Temperature Sensing; Fans
Enclosure Power and Cooling 5–3 The fan mounting assembly is the element for mounting the second fan. This element has no power circuitry. It does contain a circuit board for processing signals to and from the fan. Temperature Sensing The power supply temperature sensor provides a temperature range ...
Page 37 - Table 5–1 Power Supply and Fan Status Displays
5–4 Enclosure 4200 Family LVD Disk Enclosures User Guide Status Reporting The green status LED on the fan displays the status of either the power supply or the fan. See Table 5–1 for definitions of the LED displays. Replacing a Power Supply or Fan Replacing a power supply or fan requires that you to...
Page 38 - Ordering a Spare CRU
Chapter 6 Replacing CRUs Each replacement CRU kit contains detailed replacement instructions. This chapter describes the general replacement procedures. Ordering a Spare CRU Ordering a replacement CRU requires the Compaq spare part number. This number is located in the upper-right corner of the prod...
Page 39 - ESD Protection; Basic Replacement Procedures; Table 6–1 Common Replacement Procedures
6–2 Enclosure 4200 Family LVD Disk Enclosures User Guide ESD Protection When you replace a CRU, you must take precautions to prevent the possibility of electrostatic discharge (ESD) damaging sensitive electronic items. 1. Always transport and store CRUs in a static-safe container. 2. Do not remove t...
Page 41 - Replacing a Drive with a Drive Blank; Table 6–2 Installing a Drive Blank
6–4 Enclosure 4200 Family LVD Disk Enclosures User Guide Replacing a Drive with a Drive Blank Should a disk drive fail you may wish to replace it with a drive blank using the procedure in Table 6–2. CAUTION: Removing more than one disk drive at a time can cause the enclosure to overheat. Never remov...
Page 42 - Table 6–2 Installing a Drive Blank (Continued)
Replacing CRUs 6–5 4. Insert the drive blank part-way into the enclosure. 5. Firmly press in on the drive bank to seat it in the connector. Table 6–2 Installing a Drive Blank (Continued) CXO6824A
Page 43 - Appendix; FCC Class B Certification
Appendix A Regulatory Notices FCC Class B Certification This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential inst...
Page 44 - Country-Specific Certifications
A–2 Enclosure 4200 Family LVD Disk Enclosures User Guide Country-Specific Certifications Compaq tests all the electronic products for compliance with country-specific regulatory requirements either as an individual item or as part of an assembly. The product label (see Figure A–1) specifies the regu...
Page 45 - Physical Specifications
Appendix B Specifications This appendix defines the physical, environmental, and power specifications and the environmental specifications of the disk enclosure and the elements. Physical Specifications CAUTION: The weight of the disk enclosure with the elements installed always requires at least tw...
Page 47 - Table B–1 14-Disk Enclosure Physical Specification
Specifications B–3 Table B–1 14-Disk Enclosure Physical Specification Horizontal Orientation (see Figure B–1) Vertical Orientation (see Figure B–2) Empty Installed Shipping Carton Shipping Carton and Pallet 1 5.16 in (13.1 cm) 5.16 in (13.1 cm) 25.25 in (64.1 cm) 30.25 in (76.8 cm) 2 17.625 in (44.8...
Page 48 - Environmental Specifications; Table B–2 Element Physical Specifications (Continued)
B–4 Enclosure 4200 Family LVD Disk Enclosures User Guide Environmental Specifications To ensure optimum product operation you must maintain the operational environmental specifications listed in Table B–3. Especially critical is the ambient temperature. When shipping this product, or placing it in s...
Page 49 - Power Specifications; Table B–5 AC and DC Power Specifications
Specifications B–5 Power Specifications Table B–5 defines the AC and DC power specifications for the disk enclosure power supplies. Table B–5 AC and DC Power Specifications AC Power Specifications Range Minimum Nominal Maximum Frequency (±5%) 47 Hz 50 to 60 Hz 63 Hz Voltage (±10%) 90 VAC 100 to 240 ...
Page 54 - Index
Index A airflow 1–2 , 4–5 , 6–4 B backplane 1–2 bays, See enclosure C CRUs ordering 6–1 replacement procedures 6–2 replacing 6–1 D data integrity 1–3 data transfers 1–3 disk drive blank 1–6 detecting installation 1–4 detecting removal 1–4 disk drives 1–2 , 1–6 , 4–1 DC power 5–2 drive blank 4–4 inst...
