Enterprise Volume Manager (Multi-OS) Host Agent Version 2.0D for HP-UX Release Notes

Hardware and Software Compatibility
5Release Notes – Enterprise Volume Manager (Multi-OS) Host Agent Version 2.0D
for HP-UX
FCA/HBA Compatibility
This EVM host agent supports the HP A5158A and A6795A Fibre Channel host bus
adapters (FCA/HBA).
Platform Specific Considerations
The following issues are specific to the HP-UX platform and should be taken into
account when planning EVM job operations:
• Initial LUN Requirement for HSG80 Controllers
• Default Configuration Supports 10 Volume Groups
Initial LUN Requirement for HSG80 Controllers
The HSG80 array controller does not maintain active or “online” connections to an
HP-UX host unless a LUN is presented to that host at all times. The lack of online
connections to a host can result in EVM job failures with an error message of “No
usable mount connections found.” To prevent this problem, make sure that at least one
LUN is presented to all HP-UX hosts to act as a mount-on host for EVM jobs.
Default Configuration Supports 10 Volume Groups
With the default configuration, HP-UX supports a maximum of 10 volume groups.
Because each EVM replication job creates a new volume group on the mount-on host,
systems at or near the maximum number might experience job failures. To prevent this
problem, use the “kmtune” utility to increase the number of supported volume groups
to an appropriate level.