HP Serviceguard Version A.11.17 on HP-UX 11i v3 Release Notes, February 2007

Serviceguard Version A.11.17 on HP-UX 11i v3 Release Notes
Announcements
Chapter 18
• two heartbeat subnets; or
• one heartbeat subnet with a standby
To provide the required redundancy for both networking and mass
storage connectivity on servers with fewer than three I/O slots, you may
need to use multifunction I/O cards that contain both networking and
mass storage ports.
Veritas CVM and CFS Not Yet Supported
Serviceguard A.11.17 on HP-UX 11i v3 does not yet support Veritas
Cluster Volume Manager (CVM) and Cluster File System (CFS) from
Symantec.
If your Serviceguard cluster needs this functionality, do not upgrade to
HP-UX 11i v3; Serviceguard A.11.17 is also available on HP-UX 11i v2,
which supports the latest versions of CVM and CFS.
Support for Veritas Volume Manager (VxVM)
Veritas (VxVM) 4.1 from Symantec is supported on HP-UX 11i v3, but
VxVM 3.5 is not. If you are running VxVM 3.5 (as part of the Base
Product included with HP-UX), you can do a rolling upgrade to
Serviceguard 11.17 on HP-UX 11i v3 with VxVM 4.1. See “Upgrading
from an Earlier Serviceguard Release” on page 42 for more information.
NOTE HP-UX 11i v3 does not yet support Veritas 5.0 products. A file created
with VxFS 5.0 cannot be opened by the 4.1 version.
Native Multipathing, Veritas DMP, and Related
Features
The HP-UX 11i v3 I/O subsystem provides multipathing and load
balancing by default. This is often referred to as native multipathing.
Veritas Volume Manager (VxVM) version 4.1 and Dynamic Multipathing
(DMP) from Symantec are supported on HP-UX 11i v3, but do not
provide multipathing and load balancing; DMP acts as a pass-through
driver, allowing multipathing and load balancing to be controlled by the
HP-UX I/O subsystem instead.