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

B Booting from th e array

In order to use a native Fibre Channel-connected disk array as MPE/iX Ldev 1 (the boot

disk) to load, boot, and run the OS software, you must know the primary I/O boot pa th

leading to the desired LUN in the XP disk array. The primary boot path must be set

intoPDCmemorysothattheprocessorwillbeabletoperformI/Otothediskdevice

during system boot operations.

Yo u can use one of three methods to determine the primary bo ot path for your disk array

LUN, depending on the particular situation. These methods are summarized at the start

of this appendix and are explained in detail on the page referred to in the summary.

1. Existing MPE/iX 7.5 boot disk is available :

If the system already has an MPE/iX Release 7.5 OS installed on an existing disk

device (internal or external SCSI disk) , use the following procedure.

a. Boot and run the OS from the existing Ld ev 1 boot disk.

b. Use the fcscan –h utility program for native Fibre Channel I/O pa th mapping.

This will give you the BOOT MENU PATH for all of the native Fibre Channel

attached disk array devices.

c. Select the desired disk array LUN to be your new Ldev 1.

d. Use the BOOT MENU PATH from fc scan as the primary boot path.

2. No existing M PEiX boot d isk available array direct FC connected:

IfthesystemdoesnotalreadyhaveanMPE/iXRelease7.5OSinstalled,and

the disk array you want to use for MPE/iX Ldev 1 is native Fibre Channel and

directly cabled to the host H P e3000 system (no Fibre Channel switch), then use

the following procedure.

a. Use the MAPPER2 I/O mapping utility of the ODE (O f ﬂine Diagnostic

Environment) to display the boot menu I/O paths for all of the LUNs of

that disk array. MAPPER2 will correctly detect and report the paths for a

direct-Fibre-Channel-connected d isk array.

b. Boot the system from the SLT (System Load Tape) on the alternate boot path.

c. Run ODE>MAPPER2.

d. Select the desired disk array LUN to be your new Ldev 1, and use the I/O path

reported by MAPPER2 to be the primary boot path.

e. Install the OS onto the new Ldev 1.

3. No existing MPEiX boot disk available and array is FC switch connected:

Disk Array XP operating system conﬁguration guide: MPE/iX