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support.dell.com Setting Up Host Servers 4-11
• During a new installation or a reinstallation of the host operating system, LUNs
must be mapped only on the primary PowerVault 530F node. Before beginning to
install a host operating system, make sure that all boot and data LUNs have been
unmapped at the redundant-failover node. This restriction prevents LUNs from
being available on two different data paths.
• If you attempt to boot the host system with LUNs mapped from both the primary
and failover nodes without QL-Config and QL-Direct properly configured to man-
age a data path to the LUNs, a Windows NT Blue Screen Stop 0x0000007
(inaccessible boot device) error occurs. If this error occurs, unmap all LUNs for
this host from the redundant-failover node, and reboot the server. (Although the
Microsoft Blue Screen that can occur because of these path errors displays an
identical bugcheck code, when it occurs in this scenario, data corruption does not
occur. This condition is completely recoverable.)
• Following the installation of the host operating system, apply any service pack
and applicable SCSIPORT Hot-Fix before installing the Q-Logic, QL-Config, and
QL-Direct applications.
• Use the following order when you install the QL-Config and QL-Direct
applications:
— Install the operating system
— Install any service pack
— Install any applicable SCSIPORT Hot-Fix
— Install QL-Config
— Before installing QL-Direct, shut down and restart the system
— Install QL-Direct
— Before allowing the system to shut down and restart following the installa-
tion of QL-Direct, set Failover paths using the QL-Config application, then
shut down and restart the server
— After the server is rebooted, map the LUNs for this server on the failover
node
— After the operating system is installed, run the DELLSANREG.EXE utility
to register the WWN/Host Computer Name association with the
PowerVault 530F.