HP StorageWorks Disk Array XP operating system configuration guide: MPE/iX (A5951-96145, November, 2005)

For a pre-existing system to which new XP disk array devices are being added, you will

already have an operable system on an existing Ldev 1 boot disk that you ca n start up.

For a newly installed system, boot the system from the primary boot path just used to

install the system, and start the OS using the appropriate factory conﬁguration group, as

described in the System Software Maintenance Manual.

Regardless of which conﬁguration utility you choose, you must determine the system I/O

paths of the XP disk array devices’ internal LUNs in order to add those d evices to the

system I/O conﬁguration.

The procedure to determine the I/O paths depends on the I/O interface attachment

method for your system:

• Native Fibre Channel (A-Class and N-Class systems running M PE/iX 7.5)

• SCSI-FC Fabric Router (available for all systems) .

Follow the procedure below that applies to your system:

•Conﬁguring with native Fibre Channel disk array at tachment

•Conﬁguring with SCSI-FC fabri c router disk array attachment

Conﬁguring with native Fibre Channel disk array attachment

For native Fibre Channel attachment of disk arrays, MPE/iX Release 7.5 provides the

new fcscan utility which is capable of determining the I/O paths (both in SYSGEN and

in PDC formats) for the disk arrays. Before fcscan can do this, you must ﬁrst conﬁgure the

I/O paths of the Fibre Channel HBAs in MPE/iX, using either SYSGEN or IOCONFIG.

This is the general procedure for conﬁguring disk arrays with Fibre Channel attachment:

• Boot and s

tart the system.

• Use SYSGEN or IOCONFIG to conﬁgure the I/O paths of the Fibre Channel

HBAs. (You recorded these I/O paths when you installed the HBAs into the

system.)

• Use fcs

can -h to determine the I/O paths for the disk arrays’ N-ports and LUNs.

Using fcscan also veriﬁes disk array device recognition.

• Use SYSGEN or IOCONFIG to I/O conﬁgure the disk arrays’ N-ports and LUNs.

After completing the I/O con ﬁg uration procedure, create MPE/iX volume sets and disk

volumes on the conﬁgured XP disk array devices.

The following sample I/O conﬁguration procedure uses IOCONFIG to perform

immediate I/O conﬁguration and fcscan –h to determine device paths for na tive Fibre

Channel attachment of XP disk arrays. In this example there are two XP disk arrays,

eac

hroutedthroughaSANFCswitch,andtheneachattachedtoanA6795AFibre

Cha

nnel HBA on the server host. The procedure begins a fter the system has been

booted an d started. For brevity only two LUNs within each XP disk array are shown

being conﬁgured by IOCONFIG.

Disk Array XP operating system conﬁguration guide: MPE/iX