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support.dell.com Setting Up Host Servers 4-3
13. To add a shortcut to your desktop, click Yes.
14. You are prompted to reboot the system. While it is possible to reboot at this time,
you can also wait to reboot until you have finished installing QLDirect (see
“Installing QLDirect” in the next section).
NOTE: If you are uninstalling the QLogic Fibre Channel Configuration Utility, or you
replace or uninstall a QLogic HBA, you must delete the appropriate server's registry
settings. To delete these settings, from the QLogic Fibre Channel Configuration Util-
ity, right-click on the server's icon, and then select Delete Machine Configuration
Registry and click Delete All Adapters Registry Data.
Installing QLDirect
QLDirect is a filter driver that enables host failover. This driver must be installed on
every host server that will be connected to the PowerVault 530F. Specific primary and
failover paths are configured using the QLogic Fibre Channel Configuration Utility.
Installing QLDirect on a Host Server
To install QLDirect on a host server, perform the following steps:
1. Insert the Dell PowerVault Fibre Channel Utilities CD or the Dell PowerVault Fibre
Channel Update CD into the CD-ROM drive.
NOTE: Run the installation program once for each host server connected to the
PowerVault 530F.
2. Start the QLDirect installation.
3. Read the component information, and click Next.
4. Select SERVICE_BOOT_START before disk class driver, and click Next.
5. Select 1024 commands, and click Next.
6. Select Yes, I want to restart my computer now, and click Finish.
Setting the Execution Throttle Value
The execution throttle value field instructs the firmware on how many input/output
(I/Os) per port can be active at any point in time.
If five or more servers are attached to the PowerVault 530F, it is necessary to calcu-
late and set execution throttle values for each server.
In a SAN configuration with five or more servers, you must change the default execu-
tion throttle value in the non-volatile random-access memory (NVRAM) for each HBA.