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Network Appliance DiskShelf14 Hardware And Service Manual

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DiskShelf14, DiskShelf14mk2 FC, and
DiskShelf14mk4 FC
Hardware and Service Guide
Network Appliance, Inc.
495 East Java Drive
Sunnyvale, CA 94089 USA
Telephone: +1 (408) 822-6000
Fax: +1 (408) 822-4501
Support telephone: +1 (888) 4-NETAPP
Documentation comments: doccomments@netapp.com
Information Web: http://www.netapp.com
Part number 210-01431_B0
May 2007

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  • Page 1 DiskShelf14, DiskShelf14mk2 FC, and DiskShelf14mk4 FC Hardware and Service Guide Network Appliance, Inc. 495 East Java Drive Sunnyvale, CA 94089 USA Telephone: +1 (408) 822-6000 Fax: +1 (408) 822-4501 Support telephone: +1 (888) 4-NETAPP Documentation comments: doccomments@netapp.com Information Web: http://www.netapp.com...
  • Page 2 Network Appliance assumes no responsibility or liability arising from the use of products described herein, except as expressly agreed to in writing by Network Appliance. The use or purchase of this product does not convey a license under any patent rights, trademark rights, or any other intellectual property rights of Network Appliance.

  • Page 3: Table Of Contents

    Table of Contents Safety Information (Sicherheitshinweise) ....v Preface ........vii Chapter 1 Installation Roadmap for the diskshelf .
  • Page 4 Hot-adding a disk shelf to an existing loop ....70 Hot-adding a disk shelf to an existing adapter in your system ..74 Appendix B Recommended Power Line Sizes .

  • Page 5: Safety Information (Sicherheitshinweise)

    Safety Information (Sicherheitshinweise) Safety rules All products are Class 1 laser devices, except the NVRAM5 cluster media converter, which is Class 1M. You must follow these safety rules when working with this equipment: WARNING WARNING Failure to follow these directions could result in bodily harm or death. ◆...
  • Page 6 Sicherheitsvorgaben Alle Produkte sind Lasergeräte der Klasse 1, mit Ausnahme des NVRAM5 Cluster-Medienkonverters, der in Klasse 1M fällt. Beim Einsatz dieser Geräte sind die Sicherheitsvorschriften zu beachten: Vorsicht Nichtbeachtung dieser Vorschriften kann zu Verletzungen oder Tod führen. ◆ Bei der Verwendung eines NVRAM5 Cluster-Medienkonverters muss das Speichersystem an einem Standort mit beschränktem Zugriff installiert werden.

  • Page 7: Preface

    Preface About this guide This guide describes how to set up, install, connect, and manage the NetApp® Fibre Channel DiskShelf14 (DS14), DiskShelf14mk2 FC (DS14mk2 FC) and DiskShelf14mk4 FC (DS14mk4 FC). Audience This guide is for qualified system administrators and service personnel who are familiar with Network Appliance™...
  • Page 8 ◆ NetApp appliance refers to storage controllers and NetCache appliances that support the disk shelves. ◆ Multiloop appliance refers to a storage controller with more than one FC-AL adapter connected to disk shelves. Command You can enter filer commands on the system console or from any client that can conventions obtain access to the filer using a Telnet session.
  • Page 9 Keyboard This guide uses capitalization and some abbreviations to refer to the keys on the conventions keyboard. The keys on your keyboard might not be labeled exactly as they are in this guide. What is in this guide... What it means... hyphen (-) Used to separate individual keys.
  • Page 10 Preface...

  • Page 11: Chapter 1 Installation Roadmap For The Diskshelf

    Installation Roadmap for the diskshelf About this chapter This chapter provides a roadmap for installing the DS14, DS14mk2 FC, and DS14mk4 FC disk shelf. Topics in this This chapter discusses the following topics: chapter ◆ “Differences between the various disk shelf models”...

  • Page 12: Differences Between The Various Disk Shelf Models

    Differences between the various disk shelf models Differences The following table lists the differences between the various disk shelf models. between the disk Note shelves See the System Configuration Guide at http://now.netapp.com for information about the storage controller supporting the disk shelf configuration. Features DS14 DS14mk2 FC...
  • Page 13 Features DS14 DS14mk2 FC DS14mk4 FC ◆ For the 4-Gb loop speed setting to be used, all components on any part of the loop must be of 4-Gb capable. Examples of these components are this disk shelf model, SFPs, HBAs, or drives.

  • Page 14: Before You Begin Your Installation

    Before you begin your installation About disk shelf Before you install one or more disk shelves in a rack, you need to understand the installation following information: ◆ Disk shelf numbering ◆ Loop IDs ◆ Supported disk drives ◆ Drive bay requirements Disk shelf Each disk shelf in a loop must have a unique ID.
  • Page 15 Network Appliance sets the disk shelf IDs at the factory on configured systems, using an ID switch on the back panel. If you order additional disk shelves, you must set the disk shelf ID. Caution If you change a disk shelf ID, you must power-cycle the disk shelf for the new ID to take effect.
  • Page 16 Loop IDs In addition to identifying the disk shelf ID and the direction of the drive bays, the ID label on the right side of the disk shelf includes the loop ID. The loop ID identifies the disks in the disk shelf. The last sheets of the quick reference cards that come with your disk shelf shows the seven disk shelf IDs and their corresponding loop IDs.
  • Page 17 For DS14mk4 FC: Supported disk The DS14, DS14mk2 FC, and DS14mk4 FC support block checksum disk drives. drives See the System Configuration Guide at http://now.netapp.com for more information on supported drives and platforms. Drive bay For enclosure services monitoring to work, drive bays 0 and 1 must contain a requirements disk.
  • Page 18 Label POPULATE BAYS 0 & 1 ENCLOSURE SERVICES 3 2 1 0 The storage controller uses the enclosure services monitoring method to monitor environmental conditions of the disk shelf. Enclosure services conditions are communicated to the storage controller through the LRC/ESH module. The following table describes the three stages of enclosure services monitoring.

  • Page 19: The Installation Process

    The installation process The installation The following table provides a guide to the disk shelf installation process. process Stage Procedure Is the procedure required? For instructions, go to... Install the storage Only if the disk shelf installation Installation and Setup controller in a is part of a new system Instructions for your storage...
  • Page 20 Stage Procedure Is the procedure required? For instructions, go to... Ground the Fibre Channel Yes. Installation and Setup disk shelves and storage Instructions for your storage controller. controller, “Installing a disk shelf in a rack” on page 41, or Appendix A, “Hot-adding a DS14/DS14mk2 FC/DS14mk4...

  • Page 21: Chapter 2 Monitoring The Disk Shelf

    Monitoring the Disk Shelf About this chapter This chapter describes how to monitor the disk shelf from the error messages displayed on the console that is connected to the storage controller and identifies the location of the various LEDs on the disk shelf. Note The quick reference cards in the slide-out tray at the base of the disk shelf describe the functions of each LED on the disk shelf and the suggested course of...

  • Page 22: Monitoring The Front Operation Panel

    Monitoring the front operation panel About monitoring The front operation panel has five LEDs and a disk shelf ID display. The LEDs the front operation indicate whether your disk shelf is functioning normally or there are problems panel with the hardware. You can also identify any hardware failure associated with the front operation panel of the disk shelf from the error messages displayed on your storage controller console.
  • Page 23 LED status on the The following illustrations are of the first sheets of the quick reference cards that front operation come with your disk shelf. They shows the normal and fault conditions that the panel LEDs indicate and recommends a corrective action. For DS14 and DS14mk2 FC: Chapter 2: Monitoring the Disk Shelf...
  • Page 24 Element 1: failed failed. Contact Network Appliance customer service to replace the disk shelf. The alarm on the front operation panel failed. Contact Alarm Element 1: failed Network Appliance customer service to replace the disk shelf. Monitoring the front operation panel...
  • Page 25 Error message Action required The alarm on the front operation panel failed. Contact Display Element 1: failed Network Appliance customer service to replace the disk shelf. Chapter 2: Monitoring the Disk Shelf...

  • Page 26: Monitoring The Lrc, Esh, Esh2, Or Esh4 Modules

    Monitoring the LRC, ESH, ESH2, or ESH4 modules About monitoring All the modules have LEDs that indicate whether it is functioning normally or if the modules there are any problems with the hardware. The following table identifies the type of LED that is available for each type of module. Note The Fault LED is amber.
  • Page 27 The following illustration shows the location of the LEDs for an LRC with copper interfaces. Fault The following illustration shows the location of the LEDs for an LRC with an optical input interface and copper output interface. Fault The following illustration shows the location of the LEDs for an ESH. Fault The following illustration shows the location of the LEDs for an ESH2.
  • Page 28 The following illustration shows the location of the LEDs for an ESH4. The LED for ELP is for future functionality. LED status on the The following illustrations are of the second sheets of the quick reference cards modules that come with your disk shelf. The rest of the second sheet of the quick reference card identifies the LED status conditions for the power supply and the integrated fan module.
  • Page 29 Appliance customer service to replace the module. The temperature sensor on LRC module B on the Temperature sensor Element 3: failed bottom back of the disk shelf failed. Contact Network Appliance customer service to replace the module. Chapter 2: Monitoring the Disk Shelf...
  • Page 30 ESH/ESH2/ESH4 module A at one installed or failed point, but it is not possible now. Even if traffic is flowing through the Fibre Channel loop, contact Network Appliance customer service to replace the ESH/ESH2/ESH4. Monitoring the LRC, ESH, ESH2, or ESH4 modules...
  • Page 31 ESH/ESH2/ESH4 module B at one installed or failed point, but it is not possible now. Even if traffic is flowing through the Fibre Channel loop, contact Network Appliance customer service to replace the ESH/ESH2/ESH4. Communication was possible with SES electronics...
  • Page 32 Hub name: 9.shelf2 Channel: 9 Loop: B Shelf id: 2 Shelf UID: 50:05:0c:c0:02:00:24:02 Term switch: ON Shelf state: ONLINE ESH state: Disk Disk Port Loop Invalid Invalid Clock Insert Stall Util State Word Delta Count Count Count Count Count Count [IN] [OUT] TERM...
  • Page 33 Shelf state Description MISSING Shelf was removed from the system entirely (all paths). FAILED Failure occurred on the shelf. ESH/ESH2/ESH4 state: The following table lists and describes the ESH/ESH2/ESH4 status responses. Shelf state Description ESH/ESH2/ESH4 is fully operational. MISSING ESH/ESH2/ESH4 is missing from the specified slot. XPORT ERROR Communication with the ESH/ESH2/ESH4 is not possible.
  • Page 34 ESH/ESH2/ESH4 port state: The following table lists and describes the ESH/ESH2/ESH4 status responses. Shelf state Description Port is functioning normally. EMPTY No drive is present in bay. BYP/TBI Port failed loop test before insert and was not allowed into loop. BYP/XMIT Port bypassed due to transmitter default.
  • Page 35 Hub statistic: The following table lists and describes the hub statistic responses. Hub statistic Description Common values Failure? Loop up Count Number of times this port saw Depends on the number of the loop come up or transition insertions and removals of disks to up.
  • Page 36 Hub statistic Description Common values Failure? Stall Count Number of times this port Is zero under normal operation. Yes, if exceeded the open/close Removal and addition of disks, drive was (OPN/CLS) maximum and a reset of the adapter, might bypassed. threshold.

  • Page 37: Monitoring The Power Supply

    Monitoring the power supply LEDs on the power The power supply has four LEDs. The LEDs indicate whether the power supply supply or the integrated fan module is functioning normally or there are problems with the hardware. You can also identify any hardware failure associated with the power supplies from the error messages displayed on your storage controller console.
  • Page 38 The integrated fan module in the power supply unit Cooling element Element 1: failed on the left at the back of the disk shelf failed. Contact Network Appliance customer service to replace the power supply. The integrated fan module in the power supply unit Cooling element Element 2: failed on the right at the back of the disk shelf failed.

  • Page 39: Monitoring The Fibre Channel Disk

    Monitoring the Fibre Channel disk About monitoring The Fibre Channel disk has two LEDs. The LEDs indicate whether the disk is the Fibre Channel functioning normally or there are problems with the hardware. disk Location of LEDs The following illustration shows the Fibre Channel disk, which has two LED indicators on the front.
  • Page 40 LED status on the The following illustrations are of the third sheets of the quick reference cards that Fibre Channel disks come with your disk shelf. Note As of Data ONTAP 6.4.2 and later, drives that are idle perform a media scan in the background resulting in the LEDs pulsing every half second.
  • Page 41 For DS14mk4 FC: Chapter 2: Monitoring the Disk Shelf...
  • Page 42 Monitoring the Fibre Channel disk...

  • Page 43: Chapter 3 Replacing Disk Shelf Devices

    Replacing Disk Shelf Devices About this chapter This chapter describes how to replace disk shelves in a rack, disks in a disk shelf, and other devices. Topics in this This chapter discusses the following topics: chapter ◆ “Replacing a disk shelf”...

  • Page 44: Replacing A Disk Shelf

    Replacing a disk shelf About this section This section discusses how to disconnect a disk shelf from a storage controller, how to remove a disk shelf from a loop, and how to install a disk shelf. It does not discuss how to hot-add a disk shelf to a storage controller. For information about hot-adding a disk-shelf, see Appendix A, “Hot-adding a DS14/DS14mk2 FC/DS14mk4...
  • Page 45 Cable type and connector Where used Additional requirements SFP-to-SFP To connect disk shelves with None ESH2 and ESH4 modules SFP-to-... To connect disk shelves with None ESH2 and ESH4 modules..HSSDC2 ...to disk shelves with ESH modules HSSDC2-to-HSSDC2 To connect disk shelves with None ESH modules SC-to-...
  • Page 46 For detailed For detailed information about removing a disk shelf from a rack, see the information following topics: ◆ “Removing a disk shelf from a single disk shelf configuration” on page 37 ◆ “Removing a disk shelf from a loop” on page 39 ◆...

  • Page 47: Removing A Disk Shelf From A Single Disk Shelf Configuration

    Replacing a disk shelf in a rack Removing a disk shelf from a single disk shelf configuration Removing a disk To remove a disk shelf from a single disk shelf configuration, complete the shelf following steps. Step Action Ground yourself to the system chassis using the grounding leash. If the disk shelf connects to a...
  • Page 48 Step Action Disconnect the two disk shelf power cords from the disk shelf. Disconnect the Fibre Channel cable connecting the disk shelf and storage controller. Disconnect the grounding strap connecting the disk shelf and storage controller. Use a Phillips screwdriver to remove the screws securing the disk shelf to the telco tray, the mid-mount bracket, or the four-post rack.

  • Page 49: Removing A Disk Shelf From A Loop

    Replacing a disk shelf in a rack Removing a disk shelf from a loop Removing a daisy- To remove a disk shelf from a loop of disk shelves, complete the following steps. chained disk shelf Step Action Ground yourself to the system chassis using the grounding leash. If the disk shelf connects to a...
  • Page 50 Step Action Disconnect the two disk shelf power cords from the disk shelf that you are going to remove. Disconnect the Fibre Channel cables connecting the disk shelf to the other disk shelves or the storage controller. Disconnect the grounding strap connecting the disk shelf to the other disk shelves or the storage controller.

  • Page 51: Installing A Disk Shelf In A Rack

    Replacing a disk shelf in a rack Installing a disk shelf in a rack Installing a disk To install the disk shelf in a rack, complete the following steps. shelf WARNING WARNING You must install each disk shelf with either the two-post telco tray kit or the four-post rail kit that came in your shipment package.
  • Page 52 Step Action If the disk shelf... Then... Is a DS14 Then go to Step Is a DS14mk2 FC or a DS14mk4 Set the loop speed: ◆ The 1-Gb loop speed setting must be used if there is any component on any part of the loop that is only capable of 1-Gb operation.
  • Page 53 Step Action Connect the two disk shelf power cords to each disk shelf that you are adding. Turn on the power first to the disk shelves and then to the storage controller. Reboot the storage controller. Chapter 3: Replacing Disk Shelf Devices...

  • Page 54: Replacing A Disk In A Disk Shelf

    Replacing a disk in a disk shelf Reasons to replace You can replace a disk in a disk shelf for any reason. However, the most common a disk reason is disk failure. If a disk fails, the storage controller logs a warning message to the system console indicating which disk on which loop failed.
  • Page 55 Removing a disk To remove a disk, complete the following steps. Step Action If the disk shelf connects to a... Then... Filer/FAS appliance If you are removing disk that is a member of a volume, enter: disk fail disk_name If you are removing disk that is a spare disk, enter: disk remove disk_name Either command causes the amber...
  • Page 56 Step Action To remove the disk, press down on its release mechanism with one hand while grasping the top flange of the disk shelf with the other hand. Gently slide the disk until it disengages. Wait 30 seconds for the disk to stop spinning;...

  • Page 57: Replacing A Power Supply In A Disk Shelf

    Replacing a power supply in a disk shelf About this section Replacing a power supply in a disk shelf consists of the following procedures: ◆ “Removing a power supply” on page 47 ◆ “Installing a power supply” on page 49 Rules for replacing When replacing the power supply on your disk shelf, observe the following rules: power supplies...
  • Page 58 Step Action If the CAM mechanism on the power supply is... Then... In the middle of the rear of the Using the thumb and index finger of both hands, press the unit CAM mechanism levers in the middle of the power supply to release it.
  • Page 59 Step Action Use the handle to pull the power supply out of the disk shelf. WARNING WARNING When removing a power supply, always use two hands to support its weight. Installing a power To install a power supply in a disk shelf, complete the following steps. supply Caution Do not use excessive force when sliding the power supply into the disk shelf.
  • Page 60 Step Action The following figure shows how to raise the handle into place. If the disk shelf has... Then... An AC power supply 1. Plug the power cord into the power receptacle and fasten it with the clamp. 2. Plug the other end of the power cord into a grounded AC power source.

  • Page 61: Replacing An Lrc/Esh/Esh2/Esh4 Module

    Replacing an LRC/ESH/ESH2/ESH4 module About a module The LRC/ESH/ESH2/ESH4 module in a DS14, DS14mk2 FC, DS14mk4 FC includes a SCSI-3 Enclosure Services Processor. It maintains the integrity of the loop when disks are swapped and provides signal retiming for enhanced loop stability.

  • Page 62: Removing A Module

    Replacing an LRC/ESH/ESH2/ESH4 module Removing a module Assumption about This procedure is based on the assumption that the disk shelf is in a configuration this procedure which fulfils one or all of the following requirements: ◆ It has a single path connection ◆...
  • Page 63 Step Action Disconnect the module from the Fibre Channel cabling. Using the thumb and index finger of both hands, press the levers on the CAM mechanism on the module to release it. Pull the module out of the disk shelf. Go to “Installing a module”...

  • Page 64: Installing A Module

    Replacing an LRC/ESH/ESH2/ESH4 module Installing a module Installing an To install a module into the disk shelf, complete the following steps. module Caution Observe the “Disk shelf cabling requirements” on page 34 and do not mix LRC/ESH/ESH2/ESH4 modules within a shelf. Step Action Verify that your NetApp appliance meets the minimum software...

  • Page 65: Hot-Swapping A Module

    Replacing an LRC/ESH/ESH2/ESH4 module Hot-swapping a module Assumptions about The assumptions about this procedure are that you are replacing either one or this procedure both modules of a single disk shelf, that the modules on the disk shelf have multipath connections to the storage controller, and that you are hot-swapping one of the following: ◆...
  • Page 66 Hot-swapping a To hot-swap a module, complete the following steps. module Note To hot-swap a module on a disk shelf in a cluster, see the cluster guide for your filer or the Active/Active Configuration Guide. Step Action Verify that your NetApp appliance meets the minimum software requirements to support the disk shelf and module combination.
  • Page 67 Step Action 2. Place the terminate switch on the last disk shelf in the loop to the On position. For ESH A it is in the down position and for ESH B it is in the up position. Note ESH2 and ESH4 are self- terminating and do not have a terminate switch.
  • Page 68 Step Action Slide the module into the slot at the rear of the disk shelf and push the levers of the CAM into place. Caution Do not use excessive force when sliding the module into the disk shelf; you might damage the connector. Use the appropriate cable to reconnect both modules of the disk shelf to the other disk shelves or to your storage controller.

  • Page 69: Hot-Upgrading Or Hot-Downgrading A Disk Shelf

    Replacing an LRC/ESH/ESH2/ESH4 module Hot-upgrading or hot-downgrading a disk shelf When you can hot- You can hot-upgrade or hot-downgrade an applicable disk shelf, if your system upgrade or hot- incorporates redundancy through multipathing. downgrade Caution You must hot-upgrade or hot-downgrade all disk shelves in the loop. Requirements for To hot-upgrade or hot-downgrade a disk shelf, the following requirements must hot-upgrading or...
  • Page 70 Hot-upgrading or To hot-upgrade or hot-downgrade a disk shelf, complete the following steps. hot-downgrading a Note disk shelf To hot-upgrade or hot-downgrade a disk shelf in a cluster, see the cluster guide for your storage controller. Step Action Verify that your NetApp appliance meets the minimum software requirements to support the disk shelf and module combination.
  • Page 71 Step Action ◆ From an ESH2 to an 1. Place the terminate switch ESH/LRC on all but the last disk shelf in the loop to the Off position. For module A it is in the up position and for module B it is in the down position.
  • Page 72 Step Action From the storage controller console, enter the following command to verify that the modules in Loop A report good status: environ shelf As long as only the modules in loop A are upgraded, you also receive the following error message: Element 1: component is from a different product family.

  • Page 73: Appendix A Adding A Disk Shelf To An Existing System

    Adding a Disk Shelf to an Existing System About this appendix This appendix discusses how to install a DS14/DS14mk2 FC/DS14mk4 FC into an existing system. Topics in this This appendix discusses the following topics: appendix ◆ “Adding a disk shelf in an existing mixed-shelf loop”...

  • Page 74: Adding A Disk Shelf In An Existing Mixed-Shelf Loop

    Adding a disk shelf in an existing mixed-shelf loop Assumptions about This section is based on the assumption that the last disk shelf in the existing the existing mixed- mixed shelf loop connected to your storage controller is not a DS14 or DS14mk2 shelf loop FC disk shelf.
  • Page 75 Step Action If the disk shelf connects to a... Then... Filer/FAS appliance Shut down the filer/FAS appliance by entering the following command at the console: halt Caution Always use the halt command to perform a clean shutdown. NetCache appliance 1. From the Appliance Manager home page, select Maintenance tab >...
  • Page 76 Step Action Use the appropriate cable to connect both modules of the disk shelf to the other disk shelves or to your storage controller. See “Disk shelf cabling requirements” on page 34 for additional requirements. The following illustration shows a DS14 disk shelf installed above an FC9 disk shelf.
  • Page 77 Step Action Is the first of additional Verify that the terminate switch DS14/DS14mk2 FC disk shelves on all but the last disk shelf is in being added to the loop the Off position for LRC A (up) and LRC B (down). The terminate switch on the last disk shelf should be in the On position for LRC A (down) and LRC B...

  • Page 78: Hot-Adding A Ds14/Ds14Mk2 Fc/Ds14Mk4 Fc

    Hot-adding a DS14/DS14mk2 FC/DS14mk4 FC About this section This section provides information about how to hot-add a DS14/DS14mk2 FC/ DS14mk4 FC to an existing system. It also tabulates the error messages that appear on your storage controller console if the attempt at hot-adding was unsuccessful.
  • Page 79 Error message Explanation One of three reasons cause this error message to appear: Open loop panic ◆ The terminate switch on LRC/ESH A and LRC/ESH B on the new disk shelf are not in the On position. ◆ The shelf-to-shelf cable between the now second-to- last disk shelf and the newly added disk shelf is defective or is not securely fastened.

  • Page 80: Hot-Adding A Disk Shelf To An Existing Loop

    Hot-adding a DS14/DS14mk2 FC/DS14mk4 FC Hot-adding a disk shelf to an existing loop Requirements for You must follow this procedure exactly when hot-adding to a mixed shelf loop. this procedure Caution Failure to follow the procedure exactly causes the last FC9 in the loop to automatically terminate the loop.
  • Page 81 Step Action If the disk shelf... Then... Is a DS14 Then go to Step Is a DS14mk2 FC or a Set the loop speed: DS14mk4 FC ◆ The 1-Gb loop speed setting must be used if there is any component on any part of the loop that is only capable of 1-Gb operation.
  • Page 82 Step Action Change the disk shelf ID with the following procedure: 1. Verify that the disk shelf ID is not being used in the loop by entering the following command at the console: fcstat device_map adaptername Caution An invalid disk shelf ID causes the storage controller to panic. 2.
  • Page 83 Step Action Connect the other end of the cable to the module B Input on the new disk shelf. Verify that all the cables are securely fastened. Caution Poorly secured cables cause the storage controller to panic over an open loop. If the disk shelf you added has...

  • Page 84: Hot-Adding A Disk Shelf To An Existing Adapter In Your System

    Hot-adding a DS14/DS14mk2 FC/DS14mk4 FC Hot-adding a disk shelf to an existing adapter in your system Requirements for The following requirements must be met for this procedure: this procedure ◆ Your system must have Data ONTAP 7.2 or later. ◆ There must be an available but unused adapter on your storage controller to do this procedure.
  • Page 85 Step Action Connect the grounding strap connecting the disk shelf to the other disk shelves or your storage controller. If the disk shelf... Then... Is a DS14 Then go to Step Is a DS14mk2 FC or a Set the loop speed: DS14mk4 FC ◆...
  • Page 86 Step Action Connect the grounding strap connecting the disk shelf to the other disk shelves or your storage controller. If the disk shelf... Then... Is a DS14 Then go to Step Is a DS14mk2 FC or a Set the loop speed: DS14mk4 FC ◆...
  • Page 87 Step Action Change the disk shelf ID with the following procedure: 1. Verify that the disk shelf ID is not being used in the loop by entering the following command at the console: fcstat device_map adaptername Caution An invalid disk shelf ID causes the storage controller to panic. 2.
  • Page 88 Step Action Connect the other end of the cable to the module B Input on the new disk shelf. Verify that all the cables are securely fastened. Caution Poorly secured cables cause the storage controller to panic over an open loop. If the disk shelf you added has...

  • Page 89: Appendix B Recommended Power Line Sizes

    Recommended Power Line Sizes About this appendix This appendix describes how to determine the power line lengths running from the storage controller to the power source. Topics in this This appendix discusses the following information: appendix ◆ “Recommended AC power line sizes”...

  • Page 90: Recommended Ac Power Line Sizes

    Recommended AC power line sizes About AC power Longer AC power feeds need to be properly designed to preserve voltage levels feeds to the equipment. The wiring from the breaker panel to the power strip, which supplies power to the storage controller and disk shelves, can often exceed 50 feet.

  • Page 91: Calculating The Length Of Dc Wires

    Calculating the length of DC wires Use these variable To calculate the maximum combined length of the positive and negative wires definitions between the DC source and DC power supplies, use the following variable definitions: ◆ Voltage across the internal source SOURCE resistance ◆...
  • Page 92 Given = 2V Maximum voltage drop through input source and cable DROP = 40V Minimum input voltage = 8.6V Maximum input current at 40V = 48V Measured = 47.5V Measured LOAD = 10Ω (300W) TEST Calculating the length of DC wires...
  • Page 93 Solution DROP TOTAL 8.6 R TOTAL 2/8.6 TOTAL .233Ω TOTAL LOAD TEST LOAD TEST SOURCE + LOAD LOAD OC - LOAD LOAD LOAD TEST TEST LOAD LOAD 10Ω = 48V - 47.5V 47.5V 0.105Ω TOTAL CABLE SOURCE CABLE TOTAL SOURCE 0.233Ω...
  • Page 94 CABLE Total cable length DC resis. .128Ω Total cable length 75 ft .0017Ω/ft Total cable length(2) DC resistance(1) [Ω/ft.] [ft] Strand 25° C 75° C 25° C 75° C Solid .0017 .0020 7/20 .0015 .0018 19/25 .0017 .0020 65/30 .0018 .0022 165/34 .0016...
  • Page 95 Solution DROP TOTAL TOTAL DROP = 2/8.6 TOTAL = 0.233Ω TOTAL TOTAL SOURCE CABLE CABLE TOTAL SOURCE = 0.233 - 0 CABLE = 0.233 CABLE For example, if you have a solid strand 12 gauge wire at room temperature, use the following calculation.
  • Page 96 1. Data from Alpha Wire, wire manufacturer. 2. Combined positive and negative run About using other If you need a longer run for your combined positive and negative DC wires, wire sizes choose a wire with a lower resistance and calculate the total cable length. For example, a solid #10 AWG has a lower DC resistance than a solid #12 AWG.

  • Page 97: Appendix C Feature Update Record

    Feature Update Record Feature update The following table lists and describes the history of changes made to this history manual. When a change is implemented, it applies to the release in which it was implemented and all subsequent releases, unless otherwise specified. Feature updates Feature first implemented in Feature release date...
  • Page 98 Feature updates Feature first implemented in Feature release date ◆ Update to include DS14mk4 FC Data ONTAP 6.4.4 and later February 2007 for selected platforms. See the ◆ Update to include ESH4 System Configuration Guide http://now.netapp.com information. ◆ Update to specify loop speed usage Data ONTAP 6.4.4 and later May 2007 requirements...

  • Page 99: Appendix D Communications Regulations

    Communications Regulations About this appendix This appendix lists the regulatory notices you need to be aware of when installing and operating your Network Appliance equipment. Appendix D: Communications Regulations...

  • Page 100: Regulatory Notices

    Network Appliance devices are designed for a CFR 47 (Code Federal (U.S. only) Regulations) Part 15 Class A environment. The FCC and Network Appliance guarantee the user’s rights to operate this equipment only if the user complies with the following rules and regulations: ◆...
  • Page 101 Caution This is a Class A product. In a domestic environment this product may cause radio interference, in which case the user may be required to take adequate measures. Bureau of Standards, Metrology, and Inspections notice (BSMI, Taiwan only) Translation of the BSMI notice: Warning: This is a Class A product.

  • Page 102: Declaration Of Conformity

    Declaration of Conformity Declaration of Conformity Network Appliance, Inc. 495 East Java Drive Sunnyvale, CA 94089, U.S.A, declare under our sole responsibility that the products Type of equipment Description Model number Year of manufacture Disk drive storage shelf Fibre Channel disk shelf...

  • Page 103: Index

    Index ESH2 3 ESH4 3 AC power line sizes 80 LRC 3 audience vii power supplies 3 shelf chassis 2 disk drive compatibility 7 disk shelf ID 4 command disk shelves vii environ shelf 62 installing 41 fcstat device_map 72, 77 removing from a single configuration 37 halt 37, 39, 52, 65 replacing 34...
  • Page 104 monitoring the disk shelf ID 12 hot-upgrading or hot-downgrading 59 Temperature sensor element 1 14 installing 54 interpreting LEDs 18 removing 52 replacing 51 HA disk shelf, defined vii hot-adding error message Open loop panic 69 Soft address panic 68, 69 mixed-shelf loop hot-adding to an existing loop 68, 70, 74 assumptions about 64...
  • Page 105 location of LEDs 27 FAILED 23 power cord with 50 INIT REQD 22 power switch for 50 MISSING 23 removing from a disk shelf 47 OFFLINE 22 replacing 47 ONLINE 22 power supply error messages special messages ix cooling element, element 1 and 2 28 storage appliance, defined vii power supply element 1 and 2 28 storage show hub command output...
  • Page 106 Index...

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