Boot From A Ds300 With Qlogic Iscsi Expansion Card For Ibm Eserver Bladecenter; Planning And Considerations - IBM TotalStorage DS300 Best Practices Manual

7.1 Boot from a DS300 with QLogic iSCSI Expansion
Card for IBM eServer BladeCenter
This scenario will explain in detail the setup of an IBM ^ Blade HS20 with
QLogic iSCSI Expansion Card for IBM ^ BladeCenter. There are no hard
drives installed in the blade. One of the ports of the dual port iSCSI card will be
used to boot the blade. The second port will be configured after installation of the
operating system to get access to more logical drives of the TotalStorage DS300.
Used operating system will be Microsoft Windows Server 2003 Enterprise
Edition. Microsoft's iSCSI simple naming service will be used to discover iSCSI
targets in the SAN.
Planing and considerations
SAN Setup
DS300 Setup
host bus adapter setup
Microsoft Windows Server 2003 Enterprise Edition installation
Driver and service pack installation

7.1.1 Planning and considerations

A host bus adapter failover driver did not exist at the time this book was written.
The logical drives will be accessible only over one path. This means that logical
drives should be distributed across controllers and host bus adapters.
The failover policy of the TotalStorage DS300 will be "remote". This is the default
setting and allows a failover of arrays and iSCSI interface IP addresses to the
alternate controller. A controller failover will not result in a inaccessible boot
device. However, an iSCSI host bus adapter failure, at least the port used for
booting, will bring the system down.
The BIOS setup of the Qlogic iSCSI Expansion Card host bus adapter does not
allow for the configuration of additional logical drives. This needs to be done in
the running operating system with the SANsurfer utility.
For every slot in the blade center, 4 ports can be routed out of the BladeCenter.
Port one and two are used for the onboard dual port ethernet adapter. One port
is routed to the module bay 1 and the other port is routed to the module bay 2.
The add-in cards like the Qlogic iSCSI Expansion Card card are also dual port
adapters. One port of the add-in card is routed to the module bay 3 and the other
port of the add-in card is routed to module bay 4.
Chapter 7. TotalStorage DS300 installation
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