IBM N Series Implementation Manual
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IBM N Series Implementation Manual

IBM N Series Implementation Manual

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IBM System Storage N series
Gateway Implementation Guide for EMC
CLARiiON Storage
GC27-2191-03
NA 210-04523_A0

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  • Page 1 IBM System Storage N series Gateway Implementation Guide for EMC CLARiiON Storage GC27-2191-03 NA 210-04523_A0...
  • Page 2 References in this documentation to IBM products, programs, or services do not imply that IBM intends to make these available in all countries in which IBM operates. Any reference to an IBM product, program, or service is not intended to state or imply that only IBM’s product, program, or service may be used.
  • Page 3 Trademark IBM, the IBM logo, and ibm.com are trademarks or registered trademarks of International Business Machines Corporation in the United States, other countries, or both. A complete and current list of information other IBM trademarks is available on the Web at http://www.ibm.com/legal/copytrade.shtml Linux is a registered trademark of Linus Torvalds in the United States, other countries, or both.
  • Page 4 Consult your local IBM representative for information on the products and services currently available in your area. Any reference to an IBM product, program, or service is not intended to state or imply that only that IBM product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe on any IBM intellectual property right may be used instead.
  • Page 5 IBM may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you. Any performance data contained herein was determined in a controlled environment. Therefore, the results obtained in other operating environments may vary significantly.
  • Page 6 Notices...

  • Page 7: Table Of Contents

    Table of Contents Preface ........ix Chapter 1 Implementation Overview .
  • Page 8 viii Table of Contents...

  • Page 9: Preface

    Attention In this document, the term gateway describes IBM N series storage systems that have been ordered with gateway functionality. Gateways support various types of storage, and they are used with third-party disk storage systems—for example, disk storage systems from IBM, HP®, Hitachi Data Systems®, and EMC®.
  • Page 10 Relationship of this This guide is intended to be used in conjunction with other information in the guide to other gateway and Data ONTAP libraries. The following table describes the guides relationships between this guide and other documentation. Guide name Information includes...

  • Page 11: Supported Features

    This section contains information about where to go for additional information about IBM and IBM products, what to do if you experience a problem with your IBM N series product, and whom to call for service, if it is necessary.
  • Page 12 ◆ For the latest version of publications, go to the following Web site: www.ibm.com/storage/support/nas/ Accessing online For online Technical Support for your IBM N series product, visit the following technical support Web site: www.ibm.com/storage/support/nas/ Hardware service You can receive hardware service through IBM Integrated Technology Services.

  • Page 13: How To Send Your Comments

    Dept. GZW 9000 South Rita Road Tucson, AZ 85744–0001 U.S.A. When you send information to IBM, you grant IBM a nonexclusive right to use or distribute the information in any way it believes appropriate without incurring any obligation to you.
  • Page 14 Preface...

  • Page 15: Chapter 1 Implementation Overview

    Implementation Overview About this chapter This chapter provides an overview of how to integrate IBM® N series gateways with EMC® CX series storage arrays. Note IBM gateway models and filers with gateway functionality are both referred to as gateways. Topics in this...
  • Page 16 For information about... See... How to configure the gateway Gateway Installation Requirements and Reference Guide (quickstart procedure) Gateway Setup, Installation, and Management Guide or Data Ontap software setup guides (detailed procedures) How the gateway operates and what Gateway Installation Requirements you need to plan for a successful and Reference Guide deployment with the gateway...

  • Page 17: Cx Series Terminology

    CX series terminology metaLUN A LUN that was expanded from its original size by adding another LUN or an entire physical disk. If you need a LUN that exceeds the maximum number of disks for a RAID type or if you need to expand the user capacity of an existing LUN, you can use the metaLUN feature.

  • Page 18: Supported Clariion Storage Arrays And Firmware

    Supported CLARiiON storage arrays and firmware Finding out which This guide provides information about the storage arrays that the gateway Data ONTAP release supports at the time of publication. Not all models described in this guide are supports which supported in all Data ONTAP releases. To determine which storage array models storage arrays are supported in a particular Data ONTAP release, see the gateway Interoperability Matrix.
  • Page 19 Where to find For information about the supported CX series firmware, see the gateway information about Interoperability Matrix. supported CX Note series firmware The gateway Interoperability Matrix is the final authority about which Data ONTAP releases, storage arrays, firmware, switches, features, and so on that gateways support.

  • Page 20: Planning For Using Cx Series Storage Groups

    Planning for using CX series Storage Groups Storage Groups CX series shared storage arrays use Storage Groups to control access to data. A defined Storage Group is one or more LUNs within the storage array that can be accessed only by the host or hosts that you associate with the array LUNs. Each host can see only the array LUNs in the Storage Group with which it is associated.
  • Page 21 ◆ All the gateways in the same neighborhood must be in the same Storage Group (because all the gateways in the neighborhood must be able to see the same array LUNs). ◆ The maximum number of LUNs per Storage Group is 256. Chapter 1: Implementation Overview...

  • Page 22: Cx Series Configuration Requirements

    CX series configuration requirements CX series When you manually register the gateway FC initiator port names as hosts, you set configuration the parameters as shown in the following table. requirements to work with a gateway Setting Required value Initiator Type CLARiiON Open Array Com Path Enabled...

  • Page 23: Raid Type Restrictions

    RAID type restrictions RAID types that the See the gateway Interoperability Matrix for information about RAID type gateway supports restrictions for gateway storage on CX series storage arrays. with CX series If array LUNs of a If the gateway does not support the RAID type of an array LUN presented to it, nonsupported RAID one of the following occurs: type are presented...

  • Page 24: Guidelines For Array Lun Sizing

    Guidelines for array LUN sizing Relationship of The size of the array LUNs that you can create on the storage array is limited by Data ONTAP and the minimum and maximum array LUN sizes that Data ONTAP supports. The storage array units Data ONTAP definition of a gigabyte (GB) might not match the definition of a of measure GB for your storage array.
  • Page 25 If you plan to use a large-sized LUN that is close to the maximum capacity that Data ONTAP supports, ensure that the size you specify does not exceed the size shown in the “Maximum usable value” column in the following tables. Note Storage arrays vary as to how you can specify LUN size (that is, in GB, MB, or 512-byte blocks).
  • Page 26 Guidelines for array LUN sizing...

  • Page 27: Chapter 2 Configurations Supported With Cx Series Arrays

    Configurations Supported with CX Series Arrays About this chapter This chapter discusses the configurations supported with EMC CX series storage arrays that the gateway supports. Use the configurations in this chapter as guidelines when you connect your gateway to your storage array. Note The gateway Interoperability Matrix is the final authority about which configurations that gateways support.

  • Page 28: Your Guide To Interpreting The Illustrations

    Your guide to interpreting the illustrations Number of ports The minimum number of ports that you can use per configuration is shown in the shown illustrations. You might choose to use more ports than are shown. How redundant As you look through the illustrations, notice that on the gateway, connections paths and port pairs from the gateway FC initiator ports are set up for redundancy.
  • Page 29 The illustrations in the following table show an N7000 series model, which has both onboard FC initiator ports and cards. These examples show the use of two different redundant port pairs. Redundancy is achieved on the gateway because each port in a pair is on a different bus. “Fabric-attached configuration that optimizes performance”...
  • Page 30 Release Supported configurations Prior to To use multiple V-Series port pairs with a CX storage array, each port in a V-Series port pair must access a different fabric, and each V-Series port pair on the same V-Series system must access LUNs on different storage array than any other port pair on that V-Series system.
  • Page 31 The following illustration shows a redundant port pair on a gateway that uses cards. Gateway system port port One port on each of two different cards is configured to ensure redundancy to the port pair on the storage array. Then, if one card fails, the port on the other card is used.

  • Page 32: Direct-Attached Configurations

    Direct-attached configurations Direct-attached The following illustration shows a direct-attached stand-alone configuration stand-alone between a N7000 series gateway and an EMC CX series storage array with 10 configuration array LUNs in the gateway Storage Group. Gateway system 1 LUNs 1-10 Storage array SP A SP B...
  • Page 33 Cluster interconnect cables Gateway system 1 Gateway system 2 0 a 0 b 0a 0b 0 c 0 d 0 c 0 d LUNs 1-256 Storage array SP A SP B In a direct-attached gateway HA pair, one port pair per node is required. You can avoid a single point of failure by creating a redundant port pair.

  • Page 34: Fabric-Attached Configurations

    Fabric-attached configurations Zoning It is recommended that you use single-initiator zoning, which limits each zone to recommendation a single gateway FC initiator port and one SP. Single-initiator zoning improves discovery and boot time because the gateway FC initiators do not attempt to discover each other.
  • Page 35 Zoning: The following table shows single-initiator zoning for this example with a N7000 series gateway. Single-initiator zoning is the recommended zoning strategy. Zone Switch Gateway port Storage array port Fabric-attached HA The following illustration shows a deployment with an N5000 series gateway pair configuration switched HA pair.
  • Page 36 Zoning: The following table shows single-initiator zoning for this example with an N5000 series gateway. Single-initiator zoning is the recommended zoning strategy. Zone Gateway port Storage array port Switch 1 Gateway 1, port 0a Gateway 2, port 0a Switch 2 Gateway 1, port 0c Gateway 2, port 0c Four ports...
  • Page 37 Cluster interconnect cables Gateway system 1 Gateway system 2 0 a 0b 0a 0 b 0 c 0d 0 c 0 d Fabric 1 Fabric 2 Switch 1 Switch 2 LUNs 1-256 Storage subsystem SP A SP B Chapter 2: Configurations Supported with CX Series Arrays...
  • Page 38 Zoning: The following table shows single-initiator zoning for the previous illustration with an N5000 series gateway HA pair. Single-initiator zoning is the recommended zoning strategy. Zone Gateway Storage array Switch 1 Gateway 1 Port 0a SP A Port A1 Gateway 2 Port 0a SP A Port A2...

  • Page 39: Fabric-Attached Configuration That Optimizes Performance

    Fabric-attached configuration that optimizes performance How performance is The illustration in this section shows a configuration that enables you to optimize optimized performance by spreading I/O across the RAID groups on the storage array. You set up your configuration so that different port pairs on a gateway access different groups of array LUNs on the storage array.
  • Page 40 Example with a The following illustration shows a configuration with a stand-alone N7600 or stand-alone N7800 gateway. One gateway port pair accesses array LUNs in one LUN group gateway on the storage array and a different gateway port pair accesses array LUNs in a different array LUN group on the storage array.

  • Page 41: Chapter 3 Cx Series Configuration Overview

    CX Series Configuration Overview About this chapter This chapter provides an overview of configuring storage on a CX series storage array for gateways and setting up the gateways, switches (if applicable), and storage array to work together. It also includes a configuration overview for multiple array LUN groups.

  • Page 42: Prerequisites And Configuration Overview

    Prerequisites and configuration overview Prerequisites if you The Access Logix feature enables you to control access to array LUNs on the CX need to control series array by enabling the data access feature and creating Storage Groups. This access to array configuration overview assumes that if you want to create Storage Groups you LUNs have already done the following on the a CX series storage array:...
  • Page 43 Step Action In the Navisphere management software on the CX series storage array, create RAID groups if you have not already done so. You do not define the RAID type of the RAID group when you create it. The RAID group supports the RAID type of the first array LUN you bind on it.
  • Page 44 Step Action Install each gateway Rack mount the gateway. b. Make sure the power is connected to the gateway and that the console is set up. See the gateway Installation Requirements and Reference Guide for detailed instructions. Power on the gateway. d.
  • Page 45 Step Action If you are NOT using Storage Groups Manually register the gateway FC initiator ports, as follows: Access the “Connectivity Status” right-click menu in the Navisphere management GUI. b. Select one gateway WWPN, apply the required parameters, create a new host name for the gateway, and then select OK. “CX series configuration requirements”...
  • Page 46 Step Action If your CX series storage array is shared by gateways and non gateways, create Storage Groups to control access to the array LUNs, including a Storage Group for the gateway. You can create only one Storage Group on the array for the gateways in the neighborhood.
  • Page 47 Step Action Add the array LUNs allocated for gateways to the gateway Storage Group. Attention If the storage array configuration automatically assigns array LUN 0 as a Host ID, you must change array LUN 0 to another array LUN number. You can only map storage array LUNs to the gateway. See the gateway Installation Requirements and Reference Guide for constraints for mapping array LUN 0 to the gateway.

  • Page 48: Configuration Overview For Multiple Array Lun Groups On Cx Series Storage Arrays

    Configuration overview for multiple array LUN groups on CX series storage arrays Multiple array LUN The following are requirements to configure multiple array LUN groups: group requirements ◆ Switch zoning must define which target ports the gateway initiator ports use to access each array LUN group.

  • Page 49: Multiple Array Lun Group Configuration Example

    Multiple array LUN group configuration example The following example shows a gateway HA pair with two 4-port array LUN groups on a CX series storage array. Note Using multiple gateway port pairs to access different array LUN groups on the same storage array is supported only in Data ONTAP 7.3 and later.
  • Page 50 The following table summarizes the zoning for this configuration. Gateway and Storage Array LUN Zone port Storage array port group Switch 1 vs1-0a SP A LUNs 1 - 10 vs2-0a SP A LUNs 1 - 10 vs1-0b SP A LUNs 11 - 25 vs2-0b SP A LUNs 11 - 25...

  • Page 51: Tasks To Create Multiple Array Lun Groups

    Tasks to create multiple array LUN groups The following table summarizes the steps to create multiple array LUN groups on CX series storage arrays. If the array is not already set up and configured, see “Configuration overview” on page 28. The array LUN groups (two 4-port array LUN groups in an HA pair) and port names used in these tasks correspond to the “Multiple array LUN group...
  • Page 52 Tasks to create multiple array LUN groups...

  • Page 53: Index

    Index configuration overview 27 multiple LUN groups configuration parameters required 8 configuration example 35 configurations supported requirements 25, 34 direct-attached HA pair example 18 tasks to create 37 fabric-attached HA pair example 21 HA pair stand-alone example 20 CX storage arrays optimizing performance configuration overview 27 configuration example 25...
  • Page 54 Index...

  • Page 55: Readers' Comments - We'd Like To Hear From You

    IBM business partner, or your authorized remarketer. When you send comments to IBM, you grant IBM a nonexclusive right to use or distribute your comments in any way it believes appropriate without incurring any obligation to you. IBM or any other organizations will only use the personal information that you supply to contact you about the issues that you state on this form.
  • Page 56 Readers’ Comments — We’d Like to Hear from You Cut or Fold Along Line GC27-2191-03 Fold and Tape Please do not staple Fold and Tape _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ NO POSTAGE NECESSARY IF MAILED IN THE...
  • Page 58 NA 210-04523_A0, Printed in USA GC27-2191-03...

This manual is also suitable for:

N7000 seriesN5000 series

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