1. Manuals
  2. Brands
  3. Western Digital Manuals
  4. Enclosure
  5. Ultrastar Data102
  6. Installation manual

Western Digital Ultrastar Data102 Installation Manual

Hide thumbs Also See for Ultrastar Data102:
Table of Contents

Advertisement

Quick Links

Download this manual
Installation
Guide
Ultrastar Data102
Regulatory Model: H4102-J
April 2020
Rev. 1.12
1ET1098

Advertisement

Table of Contents
loading

Related Manuals for Western Digital Ultrastar Data102

Summary of Contents for Western Digital Ultrastar Data102

  • Page 1 Installation Guide Ultrastar Data102 Regulatory Model: H4102-J April 2020 Rev. 1.12 1ET1098...

  • Page 2: Table Of Contents

    Ultrastar Data102 Description......................2 Ultrastar Data102 Layout........................2 Environmental Specifications.......................4 Electrical Specifications........................4 Mechanical Specifications........................5 Performance Specifications......................... 5 Ultrastar Data102 Rack Requirements....................6 Compatible Rack Hardware Configuration................. 7 List of Compatible Drives........................9 Chapter 2. Disclaimers....................23 Restricted Access Location.......................24 Safety Compliance..........................24 Electromagnetic Compatibility (EMC) Class A Compliance............24 Country Certifications........................
  • Page 3 Installation Guide Table of Contents Safety and Service..........................29 Chapter 4. Packaging....................30 Ultrastar Data102 Packaging Overview..................... 31 Ultrastar Data102 Unpacking Procedure...................32 Chapter 5. Installation....................37 Ultrastar Data102 Installation Overview.................... 38 Ultrastar Data102 Installation Procedure...................39 Special Considerations for Cable Routing................65 Cabling for CMA Standard and CMA Lite..................67 Before You Begin........................

  • Page 4: Revision History

    Consumption (page December 2017 Revision 1.2 • Added active cable support • Added a note regarding single IOMs in SATA TLAs. See Ultrastar Data102 Description (page 2) • Updated the Non-Op altitude specification. See Non- Operational Altitude (page • Correct the packaging images to show the two CMA boxes that come in the accessory tray.
  • Page 5 Revision History Date Revision Comment March 2019 Revision 1.7 Updated the Ultrastar Data102 Installation Procedure (page 39) May 2019 Revision 1.8 Updated the Ultrastar Data102 Installation Procedure (page 39) July 2019 Revision 1.9 • Updated servicing image to correct length values and rail...

  • Page 6: Notices

    Per Western Digital Terms and Conditions of Sale, the user of Western Digital products in life support applications assumes all risk of such use and indemnifies Western Digital against all damages.

  • Page 7: Points Of Contact

    Points of Contact Points of Contact For further assistance with a Western Digital product, contact Western Digital Datacenter Platforms technical support. Please be prepared to provide the following information: part number (P/N), serial number (S/N), product name and/or model number, and a brief description of the issue.

  • Page 8: Chapter 1. Overview

    Overview This section provides a high level overview of the features of the Ultrastar Data102 . In This Chapter: - Ultrastar Data102 Description....... 2 - Ultrastar Data102 Layout....... 2 - Environmental Specifications......4 - Electrical Specifications........ 4 - Mechanical Specifications......5 - Performance Specifications......5...

  • Page 9: Ultrastar Data102 Description

    1.1   Ultrastar Data102 Description Figure 2: Ultrastar Data102 The Ultrastar Data102 is a 4U form factor, high availability, high density, rack-mounted storage enclosure that is capable of hosting up to 102 SAS or SATA drives. The maximum data storage capacity of the Ultrastar Data102 is 1.428 PB using 14TB HGST Ultrastar®...
  • Page 10 Table 1: Front and Rear Component Identification Number Component Enclosure Handles CMAs CMA Tray Rear Fans PSUs Chassis Cover Rear Cover Alignment Brackets Rails The following is an image of the layout of the major system components inside the Ultrastar Data102 .

  • Page 11: Environmental Specifications

    1. Overview Installation Guide 1.3 Environmental Specifications Figure 4: Component Layout 1.3   Environmental Specifications Table 2: Environmental Specification Specification Non-Operational Operational Temperature -40°C to 70°C 5°C to 35°C Temperature Gradient 30°C per hour max 20°C per hour max Temperature De-rating 1°C per 300m above 3000m 1°C per 300m above 900m Relative Humidity...

  • Page 12: Mechanical Specifications

    PSU Efficiency 80 PLUS Platinum Caution: The Ultrastar Data102 can only be plugged into highline. If the unit is plugged into lowline, the PSU will report a "Critical" state when status pages are queried using SES. In this case, the enclosure will power up, but the drives will not. The enclosure will remain in low- power mode.

  • Page 13: Ultrastar Data102 Rack Requirements

    1.7   Ultrastar Data102 Rack Requirements The Ultrastar Data102 is designed to be installed into a rack that meets the EIA-310 standard at a minimum 1181-1197 mm (46.5in. - 47.13in.) of usable rack space, frame to frame. The vertical rack rails must be set between 812.8mm - 914.4mm / 32 in.

  • Page 14: Compatible Rack Hardware Configuration

    Warning: The handles on the front of the chassis are not intended to be used to support the weight of the Ultrastar Data102 . Lifting the unit by the chassis handles or trying to support the unit on the handles can cause them to fail. This can cause serious damage to the unit or serious bodily harm to those handling the unit.
  • Page 15 1. Overview Installation Guide 1.7 Ultrastar Data102 Rack Requirements Table 8: Compatible Hardware Configuration 2 PDU Mounting Additional Mounting Parameter Rack PDU (Vertical) Bracket Bracket Hardware Vendor AFCO/Legrand Server Technology Server Technology Various Options: KIT-MB-40 None 412-0761-11_STV-4501 42RU – 412-0761-20_STV-4502...

  • Page 16: List Of Compatible Drives

    Encryption Volume Part Number Size Western Digital® No longer SAS 12Gb/s Ultrastar® DC HC310 available w/ 3.5 in. drive carrier Western Digital® No longer Ultrastar® DC HC310 SAS 12Gb/s available w/ 3.5 in. drive carrier Western Digital® No longer Ultrastar® DC HC310...
  • Page 17 1EX1222 w/ 3.5 in. drive carrier Western Digital® Ultrastar® DC HC320 SAS 12Gb/s 512e TCG-FIPS 1EX1343 w/ 3.5 in. drive carrier Western Digital® Ultrastar® DC HC320 SATA 6Gb/s 1EX1225 w/ 3.5 in. drive carrier Western Digital® HDD SATA 6Gb/s 1EX1224...
  • Page 18 1.8 List of Compatible Drives Sector Drive Type Interface Encryption Volume Part Number Size Ultrastar® DC HC320 w/ 3.5 in. drive carrier Western Digital® Ultrastar® DC HC320 SATA 6Gb/s 512e 1EX1227 w/ 3.5 in. drive carrier Western Digital® Ultrastar® DC HC320 SATA 6Gb/s...
  • Page 19 Installation Guide 1.8 List of Compatible Drives Sector Drive Type Interface Encryption Volume Part Number Size w/ 3.5 in. drive carrier Western Digital® Ultrastar® DC HC510 SAS 12Gb/s TCG-FIPS 10TB 1EX1340 w/ 3.5 in. drive carrier Western Digital® Ultrastar® DC HC510...
  • Page 20 1. Overview Installation Guide 1.8 List of Compatible Drives Sector Drive Type Interface Encryption Volume Part Number Size Western Digital® Ultrastar® DC HC520 SAS 12Gb/s TCG-FIPS 12TB 1EX1339 w/ 3.5 in. drive carrier Western Digital® Ultrastar® DC HC520 SAS 12Gb/s...
  • Page 21 1. Overview Installation Guide 1.8 List of Compatible Drives Sector Drive Type Interface Encryption Volume Part Number Size Western Digital® Ultrastar® DC HC530 SAS 12Gb/s 512e 14TB 1EX1791 w/ 3.5 in. drive carrier Western Digital® Ultrastar® DC HC530 SAS 12Gb/s...
  • Page 22 Installation Guide 1.8 List of Compatible Drives Sector Drive Type Interface Encryption Volume Part Number Size w/ 3.5 in. drive carrier Western Digital® Ultrastar® DC HC620 SAS 12Gb/s 512e SE SMR-HM 15TB 1EX2153 w/ 3.5 in. drive carrier Western Digital®...
  • Page 23 Ultrastar® SS530 SAS 12Gb/s RI-1DW/D 480GB 1EX2031 w/ 3.5 in to 2.5 in drive carrier Western Digital® Ultrastar® SS530 SAS 12Gb/s RI-1DW/D 480GB 1EX2092 w/ 3.5 in to 2.5 in drive carrier Western Digital® SSD SATA 6Gb/s RI-0.6DW/D 480GB 1EX1692...
  • Page 24 Part Drive Type Interface Drive Writes Encryption Volume Number Ultrastar® SA620 w/ 3.5 in to 2.5 in drive carrier Western Digital® Ultrastar® SA620 SATA 6Gb/s RI-0.6DW/D 480GB 1EX1699 w/ 3.5 in to 2.5 in drive carrier Western Digital® No longer Ultrastar®...
  • Page 25 1.8 List of Compatible Drives Part Drive Type Interface Drive Writes Encryption Volume Number w/ 3.5 in to 2.5 in drive carrier Western Digital® Ultrastar® SS530 SAS 12Gb/s RI-3DW/D 800GB 1EX2088 w/ 3.5 in to 2.5 in drive carrier Western Digital® Ultrastar® SS530...
  • Page 26 Ultrastar® SS530 SAS 12Gb/s ME-10DW/D 1.6TB 1EX2016 w/ 3.5 in to 2.5 in drive carrier Western Digital® Ultrastar® SS530 SAS 12Gb/s ME-10DW/D 1.6TB 1EX2017 w/ 3.5 in to 2.5 in drive carrier Western Digital® SSD SAS 12Gb/s ME-10DW/D 1.6TB 1EX2085...
  • Page 27 Part Drive Type Interface Drive Writes Encryption Volume Number Ultrastar® SS530 w/ 3.5 in to 2.5 in drive carrier Western Digital® Ultrastar® SA620 SATA 6Gb/s RI-1.8DW/D 1.6TB 1EX1698 w/ 3.5 in to 2.5 in drive carrier Western Digital® Ultrastar® SA620 SATA 6Gb/s RI-1.8DW/D...
  • Page 28 1.8 List of Compatible Drives Part Drive Type Interface Drive Writes Encryption Volume Number w/ 3.5 in to 2.5 in drive carrier Western Digital® Ultrastar® SS530 SAS 12Gb/s ME-10DW/D 3.2TB 1EX2018 w/ 3.5 in to 2.5 in drive carrier Western Digital® Ultrastar® SS530...
  • Page 29 1. Overview Installation Guide 1.8 List of Compatible Drives Part Drive Type Interface Drive Writes Encryption Volume Number Western Digital® Ultrastar® SS530 SAS 12Gb/s RI-1DW/D 7.68TB 1EX2096 w/ 3.5 in to 2.5 in drive carrier Western Digital® Ultrastar® SS530 SAS 12Gb/s RI-1DW/D 15.36TB...

  • Page 30: Chapter 2. Disclaimers

    Learn about the Regulatory, Safety, and Electromagnetic standards for which this product is compliant. The following chapter describes the Regulatory Statement of Compliance, Safety Compliance, and Electromagnetic Compatibility Agency Requirements for the Ultrastar Data102 . In This Chapter: - Restricted Access Location......24 - Safety Compliance........24 - Electromagnetic Compatibility (EMC) Class A Compliance..........24...

  • Page 31: Restricted Access Location

    2.1 Restricted Access Location 2.1   Restricted Access Location The Ultrastar Data102 is intended for installation in a server room or computer room where at least one of the following conditions apply: • access can only be gained by service persons or by users who have been instructed about the restrictions applied to the location and about any precautions that shall be taken and/or •...

  • Page 32: Country Certifications

    2. Disclaimers Installation Guide 2.4 Country Certifications • EN 61000-4-3 Radiated Immunity • EN 61000-4-4 EFT • EN 61000-4-5 Surge • EN 61000-4-6 RF Common Mode • EN 61000-4-8 Power Frequency Magnetic Field • EN 61000-4-11 Voltage Dips and Interruptions 2.4  ...

  • Page 33: Chapter 3. Safety

    Western Digital Safety The following chapter provides safety and regulatory information for the Ultrastar Data102 . In This Chapter: - Safety Warnings and Cautions....27 - Electrostatic Discharge........27 - Optimizing Location........27 - Power Connections........28 - Power Cords..........28 - Rackmountable Systems......28...

  • Page 34: Safety Warnings And Cautions

    3.2   Electrostatic Discharge CAUTION Electrostatic discharge can harm delicate components inside Western Digital products. Electrostatic discharge (ESD) is a discharge of stored static electricity that can damage equipment and impair electrical circuitry. It occurs when electronic components are improperly handled and can result in complete or intermittent failures.

  • Page 35: Power Connections

    3. Safety Installation Guide 3.4 Power Connections Position the unit so that there is adequate space around it for proper cooling and ventilation. Consult the product documentation for spacing information. Keep the unit away from direct strong magnetic fields, excessive dust, and electronic/electrical equipment that generate electrical noise.

  • Page 36: Safety And Service

    3. Safety Installation Guide 3.7 Safety and Service Always install rack rails and storage enclosure according to Ultrastar Data102 product documentation. Follow all cautions, warnings, labels, and instructions provided within the rackmount instructions. Reliable grounding of rack-mounted equipment should be maintained.

  • Page 37: Chapter 4. Packaging

    Western Digital Packaging The following chapter provides information about how the Ultrastar Data102 is packaged and instructions for unpacking it. In This Chapter: - Ultrastar Data102 Packaging Overview..31 - Ultrastar Data102 Unpacking Procedure............32...

  • Page 38: Ultrastar Data102 Packaging Overview

    4.1   Ultrastar Data102 Packaging Overview Figure 6: Packaging Layout The Ultrastar Data102 packaging consists of three layers of packaging: The accessory tray is on top, the enclosure chassis box is in the middle, and the drive assemblies are on the bottom. The accessory tray contains three cartons, two for the CMA assembly and one for the rails, as well as plastic bags that contain all necessary hardware listed below in the tables and the included cables.

  • Page 39: Ultrastar Data102 Unpacking Procedure

    7 with 14 drives per container, 1 with 4 drives. 102 Drive assemblies total 4.2   Ultrastar Data102 Unpacking Procedure Step 1 : Make sure that all of the necessary equipment is available, including any equipment necessary to support the enclosure during installation. To verify the list of necessary equipment, see:...
  • Page 40 4. Packaging Installation Guide 4.2 Ultrastar Data102 Unpacking Procedure Figure 7: Top Cap and Sleeve Removal Step 4 : Open the rail box and remove the two rail assemblies. Set them aside.
  • Page 41 4. Packaging Installation Guide 4.2 Ultrastar Data102 Unpacking Procedure Figure 8: Accessory Tray Step 5 : Open the CMA box and remove the CMA arm(s) and cross-bar. Set them aside. Step 6 : Open the chassis box and remove the top cushions, on the front and rear of the chassis.
  • Page 42 The chassis weight without drives is 32.34 kg / 71.3 lbs. Step 8 : Open the HDD boxes and verify their contents. Depending on the version of the Ultrastar Data102 being unpacked, they should contain 14 drives in the form of HDDs, SSDs, or blanks. One will only contain four drives.
  • Page 43 4. Packaging Installation Guide 4.2 Ultrastar Data102 Unpacking Procedure Figure 10: Inspect Drives and Drive Blanks...

  • Page 44: Chapter 5. Installation

    Western Digital Installation In This Chapter: - Ultrastar Data102 Installation Overview..38 - Ultrastar Data102 Installation Procedure............39 - Cabling for CMA Standard and CMA Lite..............67 - SAS Cabling..........70...

  • Page 45: Ultrastar Data102 Installation Overview

    5. Installation Installation Guide 5.1 Ultrastar Data102 Installation Overview 5.1   Ultrastar Data102 Installation Overview Procedure Info # of People Time Required Tools Required Parts Required Required 3 Total (2 for 45 min. • Long T15 Torx Screwdriver • M5 x 12mm T15 Flat Head Torx...

  • Page 46: Ultrastar Data102 Installation Procedure

    Lite. Each of these options has a different installation, configuration, and purpose. The standard CMA configuration manages and protects the full cable load during normal operation of the Ultrastar Data102 . If a fully-configured Ultrastar Data102 is not necessary, CMA Lite provides a better management and protection solution for a lighter cable load, with a more compact hardware footprint.
  • Page 47 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Note: For CMA Lite Installation only: Ensure that the chosen rack has about 2.5in. of extra space in front of the vertical rack rails. The intent of CMA Lite is to reposition the enclosure closer to the front of the rack to create a more centered enclosure.
  • Page 48 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Figure 12: Inner Rail Attachment c. Slide the inner rail toward the rear of the chassis to lock it in place. There will be an audible click and the mounting pegs will cover the front part of the keyhole.
  • Page 49 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Figure 14: Cable Tie Mount Location Step 4 : Secure the Cable Tray onto the enclosure using the included M3 x 8mm T10 Torx screws and the Long T10 Torx Screwdriver. These screws should be tightened to .33-.56 Nm / 3-5 in-lbf using a Long T10 Torx Screwdriver.
  • Page 50 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Step 6 : Install the outer rails into the rack. Pay special attention to which side is being installed. The embossed R is for the right side and L is for the left side. Right and Left refer to when you are facing the front of the rack.
  • Page 51 Install one cagenut at the uppermost mounting hole of the 4U space that the enclosure will occupy. b. If the Ultrastar Data102 will be installed in a rack for shipping purposes, install four more M5 cage nuts in the holes 3-6 of the 4U space. These will receive the M5 x 12mm T15 Flat Head...
  • Page 52 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Figure 18: Cage Nut Spacing CMA Lite: a. Line the spacer bracket up with the bottom of rack unit location of the installed outer rails. The bottom of the spacer bracket will rest on top of the bottom outer rail pin.
  • Page 53 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Figure 19: Spacer Bracket Orientation Figure 20: Spacer Bracket Placement b. Slide the nut plate down over the mounting pin on the back of the spacer bracket.
  • Page 54 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Figure 21: Rack Spacer Nut Plate Installation c. Using a T15 Torx screwdriver, tighten the top captive screw to secure the mounting plate in place. Tighten the remaining captive screws at the bottom of spacer bracket torque all four of the captive screws to 3.38-3.61 Nm / 30-32 in-lbf.
  • Page 55 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure a. From the rear of the rack, orient the alignment brackets so that the groove that will catch the cover is facing the inside of the rack. Figure 23: Alignment Bracket Groove (highlighted in red) b.
  • Page 56 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Figure 25: Screw Installation Location Step 9 : CMA Standard: Install the two rack latch brackets at the front of the rack. a. Orient the brackets so that the screw holes are between the two pins supporting the outer rails as shown in the following image.
  • Page 57 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Figure 26: Rack Latch Bracket Installed b. Use 6 of the included M5 x 12mm screws and the T15 Torx screwdriver to install each bracket, 3 screws per bracket. Caution: Always install the top cover onto the enclosure before installing the chassis into a rack.
  • Page 58 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Figure 27: Extend Mid-Rails Step 11 : Install the chassis into the rails. a. Extend the bearing plates on the inside of the mid-rails until they are fully forward (detent has engaged). This prevents potential damage due to improper mating of the rails.
  • Page 59 Warning: The handles on the front of the chassis are not intended to be used to support the weight of the Ultrastar Data102 . Lifting the unit by the chassis handles or trying to support the unit on the handles can cause them to fail. This can cause serious damage to the unit or serious bodily harm to those handling the unit.
  • Page 60 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Figure 29: Installing the Chassis d. Once the rails are mated properly, slide the enclosure into the rack until it is stopped by the safety catch on the rails. Push the release lever on the safety latch (located on the side of each of the rails), and push the enclosure the rest of the way into the rack.
  • Page 61 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Figure 31: Initial Alignment b. Insert the peg on the underside of the crossbar into the slot on the CMA mounting bracket. Figure 32: Crossbar Underside Peg c. Swing the crossbar so that the thumbscrew lines up with the mounting hole on the opposite...
  • Page 62 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Figure 33: Swinging Motion of Crossbar to Locking Position d. Press the crossbar against the CMA mounting bracket and secure the crossbar in place by pressing and turning the thumbscrew clockwise until snug.
  • Page 63 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Note: CMA Lite has one arm, to be installed at the lower position. This arm should have the elbow on the left side. a. Orient the CMA so that the elbow is on the left hand side.
  • Page 64 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Figure 36: CMA Cable Routing c. Open all of the baskets. Figure 37: Open Baskets...
  • Page 65 Close all of the baskets. i. If the Ultrastar Data102 is being installed in a rack and will subsequently be transported inside that rack, it is important to use the included cable tie to wrap the CMA bundle to ensure it does not get damaged during transport.
  • Page 66 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure CMA Lite: a. Press the blue latch button labeled "push" to unlatch the elbow side of the CMA arm, and then swing the arm open. b. Open all of the baskets.
  • Page 67 Close all of the baskets. h. If the Ultrastar Data102 is being installed in a rack and will subsequently be transported inside that rack, it is important to use the included cable tie to wrap the CMA bundle to ensure it does not get damaged during transport.
  • Page 68 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Step 16 : Test for binding in the extension of the arm by gently pulling the enclosure out of the rack, ensuring the cables extend properly and that the system doesn’t bind at all. If it does, examine...
  • Page 69 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Figure 42: Chassis Handle Operation Step 20 : Perform this same action two more times without the drives loaded to make sure the rail kits are installed properly. Step 21 : Install the 3.5in HDD Assembly.
  • Page 70 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Figure 44: Installing a 3.5in HDD Assembly d. Pinch the latch release and carefully press downward to seat the 3.5in HDD Assembly the rest of the way. Step 22 : Repeat the preceding steps to install each subsequent HDD using the same method as the first, populating the enclosure from left-to-right, rear-to-front.
  • Page 71 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Figure 45: Drive Layout Caution: To ensure proper airflow for enclosure cooling, all drive slots must be populated with either drives or drive blanks. Step 23 : Now that the drives are installed into the chassis, test the installation by sliding the enclosure in and out of the rack a minimum of three times.

  • Page 72: Special Considerations For Cable Routing

    5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Figure 46: Shipping Bracket Screw Locations (CMA Standard) Figure 47: Shipping Bracket Screw Locations (CMA Lite) Step 25 : Plug the enclosure power cords into a PDU to power the enclosure. Step 26 : Double check the power indicators and other LEDs to ensure that the system is booting.
  • Page 73 5. Installation Installation Guide 5.2 Ultrastar Data102 Installation Procedure Figure 48: Nominal Cable Length at Connectors The cables at the port side of the CMA should crisscross in front of the IOMs. To accomplish this, the cables connected to the ports for IOM B (right hand side when facing the rear) should be connected to the upper CMA, and the cables connected to the ports for IOM A (left hand side when facing the rear) should be connected to the lower CMA.

  • Page 74: Cabling For Cma Standard And Cma Lite

    5. Installation Installation Guide 5.3 Cabling for CMA Standard and CMA Lite When the cables are routed into the CMA, make sure there is some slack given to the elbow joint of the CMA. It is recommended not to wrap the cables tightly around this joint because this can cause binding and prevent smooth operation.

  • Page 75: Cabling Cma Standard

    5. Installation Installation Guide 5.3 Cabling for CMA Standard and CMA Lite 5.3.1   Before You Begin The cable configurations detailed in this section are intended to provide the optimal setup for your specific configuration. During the cabling of the CMA, the HD Mini-SAS and SFP+ cables should be installed into the CMA first, followed by Ethernet cables, and finally the power cables on top.

  • Page 76: Cable Configuration For Cma Lite

    5. Installation Installation Guide 5.3 Cabling for CMA Standard and CMA Lite 5.3.2.1   SFP+ and HD Mini-SAS Cable Configuration This configuration includes the use of up to four SFP+ and two HD Mini-SAS cables installed into a CMA arm. Figure 53: Service Loop Dimension Figure Table 16: Service Loop Dimension Table 6in.

  • Page 77: Sas Cabling

    5.4   SAS Cabling The Ultrastar Data102 can use passive cables that are limited to 3m or less, or active cables of any length for SAS connections to the host. Active cables must be used for Ultrastar Data102 to Ultrastar Data102 daisy chaining connections.
  • Page 78 If you are connecting more than one host port per I/O, you must connect cables to every other port per IOM and do not need all six ports, Western Digital recommends connecting the cables to every other port as a best practice. The recommended connection order on IOM A ports A6, A4, and A2 for subsystems with three or fewer connected hosts.
  • Page 79 5. Installation Installation Guide 5.4 SAS Cabling Figure 55: Passive Cable Rear I/O Connection Edge Buffering Edge buffering is an enclosure feature that increases the overall enclosure performance when a 6 Gbps target is connected. With edge buffering disabled, primitives that can be deleted from the initiator are added to slow the effective logical rate to the slowest target device connected between the initiator and the target device.

Table of Contents