Overview: The Next Generation Mass Storage Stack (September 2009)

• When using the boot loader, you must use the 32-bit format. For example, to boot from a device with a
lunpath hardware path of 1/2/0.0x51ef000012003400.0x4000000000000000, enter the following:
ISL> hpux boot (1/2/0.0x51ef0000.0x12003400.0x40000000.0x0;0)/stand/vmunix
To display hardware paths in BCH format while the operating system is running, use the ioscan command with
the –e option. The BCH hardware paths are printed in both hexadecimal and decimal. For example:
# ioscan –N –k –e –H 0/4/1/1.0x50001fe15008a73c.0x4002000000000000
H/W Path Class Description
==================================================================
0/4/1/1.0x50001fe15008a73c.0x4002000000000000 lunpath LUN path for disk44
0/4/1/1.0x50001fe1.0x5008a73c.0x40020000,
0/4/1/1.1342185441.1342744380.1073872896
setboot(1M)
The setboot command displays and modifies boot variables in system stable storage (also known as nonvolatile
RAM or NVRAM). It displays information in the agile view only, as lunpath hardware paths and persistent DSFs:
# setboot
Primary bootpath : 0/1/1/0.0x0.0x0 (/dev/rdisk/disk47)
HA Alternate bootpath : 0/1/1/0.0x1.0x0 (/dev/rdisk/disk48)
Alternate bootpath : 0/1/1/0.0x1.0x0 (/dev/rdisk/disk48)
When setting boot paths, setboot accepts a legacy hardware path, a lunpath hardware path, or a persistent
DSF. If you specify a persistent DSF, setboot selects an available lunpath hardware path to write in system
stable storage. For example, the following three commands are equivalent:
# setboot -a /dev/rdisk/disk47
Alternate boot path set to 0/1/1/0.0x0.0x0 (/dev/rdisk/disk47)
# setboot -a 0/1/1/0.0x1.0x0
# setboot -a 0/1/1/0.1.0
The setboot command is aware of multi-pathed devices and supports automatic boot path failover. If the
hardware path written into stable storage goes offline, setboot retrieves an alternate available hardware path to
the LUN and writes it into system stable storage.
For additional information on the setboot command in HP-UX 11i v3, see the Setboot(1M) in HP-UX 11i v3
white paper in For more
information.
Support Tools Manager
Support Tools Manager (STM) includes a new menu that displays the agile view.
Third-Party Multi-Pathing Products
Native multi-pathing affects the following third-party multi-pathing products:
SecurePath SecurePath is not supported on HP-UX 11i v3. For information on migrating from
SecurePath to native multi-pathing, see the HP-UX 11i v2 to 11i v3 Mass Storage Stack
Update Guide in For More
Information.
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