Front cover IBM XIV Storage System Host Attachment and Interoperability Integrate with DB2, VMware ESX, and Microsoft HyperV Get operating system specifics for host side tuning Use XIV with IBM i, N series, and ProtecTIER Bertrand Dufrasne Bruce Allworth Desire Brival Mark Kremkus Markus Oscheka Thomas Peralto ibm.com/redbooks International Technical Support Organization IBM XIV Storage System Host Attachment and Interoperability March 2013 SG24-7904-02 Note: Before using this information and the product it supports, read the information in “Notices” on page ix. Third Edition (March 2013) This edition applies to the IBM XIV Storage System (Machine types 2812-114 and 2810-114) with XIV system software Version 11.1.1. © Copyright International Business Machines Corporation 2012, 2013. All rights reserved. Note to U.S. Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents Notices . ix Trademarks . .x Preface . xi The team who wrote this book . xi Now you can become a published author, too! . xiii Comments welcome. xiii Stay connected to IBM Redbooks . xiv Summary of changes. .xv March 2013, Third Edition . .xv Chapter 1. Host connectivity . 1 1.1 Overview . 2 1.1.1 Module, patch panel, and host connectivity . 4 1.1.2 Host operating system support . 9 1.1.3 Downloading the entire XIV support matrix by using the SSIC. 9 1.1.4 Host Attachment Kits . 10 1.1.5 Fibre Channel versus iSCSI access . 12 1.2 Fibre Channel connectivity . 13 1.2.1 Preparation steps . 13 1.2.2 Fibre Channel configurations . 15 1.2.3 Zoning . 18 1.2.4 Identification of FC ports (initiator/target) . 20 1.2.5 Boot from SAN on x86/x64 based architecture. 22 1.3 iSCSI connectivity . 27 1.3.1 Preparation steps . 28 1.3.2 iSCSI configurations . 28 1.3.3 Network configuration . 30 1.3.4 IBM XIV Storage System iSCSI setup . 30 1.3.5 Identifying iSCSI ports . 33 1.3.6 iSCSI and CHAP authentication . 34 1.3.7 iSCSI boot from XIV LUN . 35 1.4 Logical configuration for host connectivity . 36 1.4.1 Host configuration preparation . 36 1.4.2 Assigning LUNs to a host by using the GUI . 38 1.4.3 Assigning LUNs to a host by using the XCLI . 42 1.5 Troubleshooting . 44 Chapter 2. XIV and Windows host connectivity . 45 2.1 Attaching a Microsoft Windows 2008 R2 host to XIV . 46 2.1.1 Prerequisites . 46 2.1.2 Windows host FC configuration . 47 2.1.3 Windows host iSCSI configuration . 52 2.1.4 Host Attachment Kit utilities . 65 2.2 Attaching a Microsoft Windows 2008 R2 cluster to XIV . 66 2.2.1 Prerequisites . 67 2.2.2 Installing Cluster Services. 68 2.2.3 Configuring the IBM Storage Enabler for Windows Failover Clustering . 73 © Copyright IBM Corp. 2012, 2013. All rights reserved. iii 2.3 Attaching a Microsoft Hyper-V Server 2008 R2 to XIV . 79 2.4 Microsoft System Center Virtual Machine Manager 2012 Storage Automation . 80 2.4.1 The XIV Open API overview . 80 2.4.2 System Center Virtual Machine Manager overview . 82 Chapter 3. XIV and Linux host connectivity . 85 3.1 IBM XIV Storage System and Linux support overview . 86 3.1.1 Issues that distinguish Linux from other operating systems . 86 3.1.2 Reference material . 86 3.1.3 Recent storage-related improvements to Linux . 89 3.2 Basic host attachment. 90 3.2.1 Platform-specific remarks . 90 3.2.2 Configuring for Fibre Channel attachment . 93 3.2.3 Determining the WWPN of the installed HBAs . 97 3.2.4 Attaching XIV volumes to an Intel x86 host using the Host Attachment Kit . 98 3.2.5 Checking attached volumes . 101 3.2.6 Setting up Device Mapper Multipathing . 106 3.2.7 Special considerations for XIV attachment . 114 3.3 Non-disruptive SCSI reconfiguration. 115 3.3.1 Adding and removing XIV volumes dynamically . 115 3.3.2 Adding and removing XIV volumes in Linux on System z. 117 3.3.3 Adding new XIV host ports to Linux on System z . 118 3.3.4 Resizing XIV volumes dynamically . 119 3.3.5 Using snapshots and remote replication targets. 120 3.4 Troubleshooting and monitoring . 123 3.4.1 Linux Host Attachment Kit utilities. 123 3.4.2 Multipath diagnosis . 124 3.4.3 Other ways to check SCSI devices. 127 3.4.4 Performance monitoring with iostat. 128 3.4.5 Generic SCSI tools . 128 3.5 Boot Linux from XIV volumes . 129 3.5.1 The Linux boot process. 129 3.5.2 Configuring the QLogic BIOS to boot from an XIV volume . 130 3.5.3 OS loader considerations for other platforms . 130 3.5.4 Installing SLES11 SP1 on an XIV volume . ..