Chapter 17. Host Utilities Kits 209HUKs are available that support the following programs: AIX with Fibre Channel Protocol (FCP) and iSCSI Linux with FCP/iSCSI HP-UX with FCP/iSCSI Solaris Platform Edition (SPARC and x86) with FCP/iSCSI VMWare ESX with FCP/iSCSI Windows with FCP/iSCSI17.3 Functions provided by Host UtilitiesThis section addresses the main functions of the Host Utilities.17.3.1 Host configurationOn some operating systems such as Microsoft Windows and VMware ESX, the Host Utilitiesalter the SCSI and path timeout values and HBA parameters. These timeouts are modified tomake sure of the best performance and to handle storage system events. Host Utilities makesure that hosts correctly handle the behavior of the IBM N series storage system. On otheroperating systems such as those based on Linux and UNIX, timeout parameters need to bemodified manually. For more information, see the Host Utilities Setup Guide.17.3.2 IBM N series controller and LUN configurationHost Utilities also include a tool called sanlun, which is a host-based utility that helps youconfigure IBM N series controllers and LUNs. The sanlun tool bridges the namespacebetween host and storage controller, collecting and reporting storage controller LUNinformation. It then correlates this information with the host device filename or equivalententity. This process assists with debugging SAN configuration issues. The sanlun utility isavailable in all operating systems except Windows.17.4 Windows installation exampleThe following section provides an example of what is involved in installing the HUK ontoWindows and configuring your system to work with that software.17.4.1 Installing and configuring Host UtilitiesYou must perform the following high-level steps to install and configure your HUK:1. Verify your host and storage system configuration.2. Confirm that your storage system is set up.3. Configure the Fibre Channel HBAs and switches.4. Check the media type setting of the Fibre Channel target ports.5. Install an iSCSI software initiator or HBA.6. Configure iSCSI options and security.
