HP StorageWorks Booting Windows Server 2003 for Itanium-based Systems from a Storage Area Network Application Notes

NOTE:

Youmustrun theSmart Component fromacommandlineenvironment as showninthe following

example to ensure that you have the proper driver parameter settings:

C:\>cp00xxxx.exe /x

Considerations for multipath environments

Multipathing p rovides high-availability computing through a redundant data path to the RAID array.

Microsoft requires that the boot HBA be different from the shared-data HBA. When using the SCSIPO RT

miniport driver in a cluster conﬁg uration, each server must h ave four HBAs (with a minimum of two for

boot

and two for data, bringing the total to a minimum of eight HBAs for a two-node cluster). This

conﬁguration provides data-path redundancy for boot and data. When using the Storport miniport driver,

the

boot a nd data paths can reside on the same HBA. Multipath software loads after the operating

system has booted and should be treated the same as any other app lication installation.

For Multipath software version information, go to

ttp://h18006.www1.hp.com/products/sanworks/secure-path/spwin.html

ttp://h18006.www1.hp.com/products/sanworks/softwaredrivers/multipathoptions/windows.html

Special considerations for XP Disk Arrays

Consider the follow ing:

• The boot LUN m ust be LUN 0.

• If one server is booting from a SAN, one host g roup is required for the HBA on the ser ver.

• If more than one server is booting from a SAN and all are a ccessing the same physical port, a

unique host group is required for each HBA. Every host group must be assigned on a port with a

unique LUN 0. If LUN security is turned off for this port (for example, port CL1-A), all servers

deﬁned in the host groups are given access to all LUNs in the default host group.

For detailed information about XP Disk Array host groups, LUN security, and host modes, see the

HP StorageWorks Command View XP user guide at:

ttp://h20000.ww w2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=Sup

port Manual&locale=en_US&docIndexId=179911&taskId=101&prodTypeId=12169&prod

SeriesId=64820.

• To set up the remaining HBA ports, assign nonbooting HBAs to a different host group.

Creating a LUN

The following sections describe how to create LUNs on storage arrays.

Creating a LUN on Enterprise Modular Arrays

To cr eate a LUN on Enterprise Modular Arrays:

1. Using a terminal emulator or a terminal connected to the storage subsystem, enter the follow ing CLI

commands to conﬁgure a device with n o access allowed:

HSG> initialize disk10000

HSG> add unit d1 disk10000 disable_access_path=all

HSG> show dl

2. Note the controller to which the LUN is recognized as online.

Booting Windows Server 2003 for Itanium-based systems from a storage area network application notes