Multipath support for HP 9000 and HP Integrity servers

The SAN Volume Controller supports multipathing for HP 9000 and HP Integrity servers.

For releases of HP-UX prior to 11.31, multipathing support is available using either of the following software:

Mass storage stack and native multipathing
Mass storage stack manages I/O devices. In HP-UX 11i v3, the mass storage stack provides native multipathing and agile naming.
SDD dynamic pathing on HP 9000 and HP Integrity servers
HP 9000 and HP Integrity servers support IBM System Storage Multipath Subsystem Device Driver (SDD) dynamic pathing when you add more paths to a virtual disk (VDisk) or when you present a new VDisk to a host.
PVLinks dynamic pathing on HP 9000 and HP Integrity servers
HP 9000 and HP Integrity servers with HP-UX versions 11.0, 11iv1, and 11iv2 support HP PVLinks (physical volume links) dynamic pathing when you add more paths to a virtual disk (VDisk) or when you present a new VDisk to a host.
Multipathing configuration maximums for HP 9000 and HP Integrity servers
Ensure that you are aware of the configuration maximums for the IBM System Storage Multipath Subsystem Device Driver (SDD) on HP 9000 and HP Integrity servers.
Coexistence of IBM System Storage Multipath Subsystem Device Driver (SDD) and PVLinks on HP 9000 and HP Integrity servers
If you want to use PVLinks (physical volume links) for multipathing a VDisk while the IBM System Storage Multipath Subsystem Device Driver (SDD) is installed, you must ensure that SDD does not configure a vpath for that VDisk.

Parent topic: Configuring the HP 9000 and HP Integrity servers operating system