Enterprise Volume Manager (Multi-OS) Version 2.0D Network Administration Guide
8–10 Enterprise Volume Manager (Multi-OS) Network Administration Guide
EVM Support for Volume Groups and HP Tru64 UNIX AdvFS Domains
• All physical volumes must be located on HSG or HSV storage.
For EVM to replicate a volume group, all physical volumes that comprise the
volume group must be located on HSG or HSV storage. This HSG or HSV storage
must be visible to EVM through the Management Appliance.
• Replicated volume groups cannot be mounted on the same host as the source.
Copying an entire volume group results in a new group that has the same volume
group name as the source. No two volume groups can have the same name on the
same host.
• Volume group names must be unique across all EVM host agents.
A common EVM configuration involves the allocation of a single EVM host agent
computer as a backup server, which is used to mount and backup the replicated
volume groups from multiple source hosts. Such configurations are supported, but
if more than one replicated volume group is to be presented to the backup server at
the same time, the source volume groups that the copies are created from must
have unique names.
NOTE: This is not the case for HP Tru64 UNIX, where duplicates are renamed as needed.
• Any volume group Journaled File System (JFS) log file name must be unique
across all EVM host agents.