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Draft Document for Review February 27, 2013 3:34 pm 8107 04 Host config NANCY IMRAN.fm 4 Chapter 4. Host configuration This chapter describes how to use the IBM Storwize V3700 GUI to create hosts, and how to prepare a host to access the volumes that are created. (Volume creation is described in Chapter 5, “Basic volume configuration” on page 163.) © Copyright IBM Corp. 2012. All rights reserved. 135 8107 04 Host config NANCY IMRAN.fm Draft Document for Review February 27, 2013 3:34 pm
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   © Copyright IBM Corp. 2012. All rights reserved. 135 Draft Document for Review February 27, 2013 3:34 pm 8107 04 Host config NANCY IMRAN.fm Chapter 4. Host configuration This chapter describes how to use the IBM Storwize V3700 GUI to create hosts, and how to prepare a host to access the volumes that are created. (Volume creation is described in Chapter5, “Basic volume configuration” on page163.)   4  8107 04 Host config NANCY IMRAN.fm Draft Document for Review February 27, 2013 3:34 pm 136   Storwize V3700 Implementation 4.1 Host attachment overview A host system is an open-systems computer that is connected to the switch through a Fibre Channel or an iSCSI interface.This chapter describes the following topics:  Preparing the host operating system–WindowsãFibre Channel (FC)ãiSCSI–VMwareãFibre ChannelãiSCSI  Creating hosts using the Storwize V3700 GUI–Creating FC hosts–Creating iSCSI hostsIn this chapter, we assume that your hosts are connected to your FC or IP network and you have completed the steps described in 2.9, “Initial configuration” on page42. Follow basic zoning recommendations to ensure that each host has at least two network adapters, that each adapter is on a separate network (or at minimum in a separate zone), and is connected to both canisters. This setup assures four paths for failover and failback purposes.Before mapping the newly created volumes on the host of your choice, a little preparation goes a long way towards ease of use and reliability. There are several steps required on a host in preparation for mapping new IBM Storwize V3700 volumes to the host. Use the System Storage Interoperation Center (SSIC) to check which code levels are supported to attach your host to your storage. SSIC is a web tool that checks the interoperation of host, storage, switches, and multipathing drivers. It can be found at the following address: http://ibm.com/systems/support/storage/ssic/interoperability.wss The complete support matrix is listed in the IBM Storwize V3700 Supported Hardware List, Device Driver, Firmware, and Recommended Software Levels V6.4 document, which is available at the following address: http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004111 This chapter focuses on Windows and VMWare. If you must attach any other hosts, for example, IBM AIX®, Linux, or even an Apple system, then you can find the required information in the IBM Storwize V3700 Information Center at the following address: http://pic.dhe.ibm.com/infocenter/storwize/v3700_ic/index.jsp  Chapter 4. Host configuration 137 Draft Document for Review February 27, 2013 3:34 pm 8107 04 Host config NANCY IMRAN.fm 4.2 Preparing the host operating system In this section, we describe how to prepare Windows and VMware hosts for attachment to an IBM Storwize V3700, using either Fibre Channel or iSCSI to connect. 4.2.1 Windows 2008 (R2): Preparing for Fibre Channel attachment Complete the following steps to prepare a Windows 2008 (R2) host to connect to an IBM Storwize V3700 using Fibre Channel:1.Make sure that the latest OS service pack and test fixes are applied to your Microsoft server.2.Use the latest firmware and driver levels on your host system.3.Install HBA or HBAs on the Windows server using the latest BIOS and drivers.4.Connect the FC Host Adapter ports to the switches.5.Configure the switches (zoning).6.Configure the HBA for hosts running Windows.7.Set the Windows timeout value.8.Install the multipath module. Downloading and installing the supported drivers and firmware Install a supported HBA driver for your configuration. Use the Windows Device Manager or vendor tools such as Sansurfer (QLogic), HBAnyware (Emulex), or HBA Software Installer (Brocade) to install the driver. Also check and update the BIOS (firmware) level of the HBA using the manufacturer’s provided tools. Check the readme  file to see if there are Windows registry parameters that should be set for the HBA driver. The latest supported levels are available at the following address: http://ibm.com/support/docview.wss?uid=ssg1S1003703#_Win2008 Configuring Brocade HBAs for Windows This section applies to Windows hosts that have Brocade HBAs installed. After installing the device driver and firmware, you must configure the HBAs. To perform this task, either use the Brocade HCM software or reboot into the HBA BIOS, load the adapter defaults, and set the following values:  Host Adapter BIOS: Disabled (unless the host is configured for SAN Boot)  Queue depth: 4 Configuring QLogic HBAs for Windows This section applies to Windows hosts that have QLogic HBAs installed.After installing the device driver and firmware, you must configure the HBAs. To perform this task, either use the QLogic Sansurfer software or reboot into the HBA BIOS, load the adapter defaults, and set the following values:  Host Adapter BIOS: Disabled (unless the host is configured for SAN Boot)  Adapter Hard Loop ID: Disabled  Connection Options: 1 - point to point only  LUNs Per Target: 0  Port Down Retry Count: 15  8107 04 Host config NANCY IMRAN.fm Draft Document for Review February 27, 2013 3:34 pm 138   Storwize V3700 Implementation Configuring Emulex HBAs for Windows This section applies to Windows hosts that have Emulex HBAs installed.After installing the device driver and firmware, you must configure the HBAs. To perform this task, either use the Emulex HBAnyware software or reboot into the HBA BIOS, load the defaults, and set topology to 1 (10F_Port Fabric). Setting the Windows timeout value For Windows hosts, the disk I/O timeout value should be set to 60 seconds. To verify this setting, complete the following steps:1.Click Start   Run .2.In the dialog box, type regedit and press Enter.3.In the registry editor, locate the HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Disk\TimeOutValue  key.4.Confirm that the value for the key is 60 (decimal value), and, if necessary, change the value to 60 (Figure4-1). Figure 4-1 Windows timeout value  Installing the multipathing software Microsoft Multipath Input/Output (MPIO) solutions are designed to work with device-specific modules (DSMs) written by vendors, but the MPIO driver package does not, by itself, form a complete solution. This joint solution allows the storage vendors to design device-specific solutions that are tightly integrated with the Windows operating system. MPIO is not shipped with the Windows operating system; storage vendors must pack the MPIO drivers with their own DSM. IBM Subsystem Device Driver DSM (SDDDSM) is the IBM multipath I/O solution that is based on Microsoft MPIO technology. It is a device-specific module designed to support IBM storage devices on Windows hosts. The intent of MPIO is to provide better integration of a multipath storage solution with the operating system, and it allows the use of multipath in the SAN infrastructure during the boot process for SAN Boot hosts.To ensure correct multipathing with IBM Storwize V3700, SDDDSM must be installed on Windows hosts. To install SDDDSM, complete the following steps:1.Check the SDDDSM download matrix to determine the correct level of SDDDSM to install for Windows 2008 (R2) and download the package from the following address: http://ibm.com/support/docview.wss?uid=ssg1S7001350#WindowsSDDDSM 2.Extract the package to your hard disk drive and run setup.exe  to install SDDDSM. A command prompt window opens (Figure4-2). Confirm the installation by entering Y .
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