ServiceGuard Manager Version A.02.00 Release Notes, June 2002

14 Chapter1

ServiceGuard Manager Version A.02.00 Release Notes

Compatibility Information and Installation Requirements

the user’s commands to the discovered cluster objects, and then pass

progress reports back to the management station.

• Security Considerations

If you are an experienced ServiceGuard user, you may notice that the

way a ServiceGuard Manager user gets information about remote

clusters is similar to the way a ServiceGuard command-line user can

issue the cmviewcl command to get information about a remote

cluster. Please notice, however, that the permissions and access

mechanisms are not the same for the two methods.

In order to view clusters, a ServiceGuard Manager user needs any

valid logon to a server. The user does not have to be root to view. The

server, however, can only gather information if it has access

permissions to the cluster nodes, as root. To get access, each cluster

node’s cmclnodelist (or .rhosts) ﬁle must include the entry for the

server:

<servername> root

Because the server needs root access to the cluster nodes, all root

users on that server can also open ServiceGuard Manager and issue

the administrative commands from the menus to any of the

discovered cluster objects on the map.

You can have ServiceGuard clusters on Linux or HP-UX. You can also

install ServiceGuard Manager on Linux or HP-UX nodes (or on

Windows).

Both HP-UX and Linux ServiceGuard nodes can be servers, and can

create (view-only) maps of both Linux and HP-UX ServiceGuard

cluster objects.

Both HP-UX and Linux clusters can receive administrative

commands from servers.

However, only HP-UX servers can send administrative commands.

Only an HP-UX server can activate the administrative commands on

the ServiceGuard Manager menus. You can send administrative

commands to a Linux or HP-UX cluster, but only if you log on to an

eligible HP-UX server as root.

If you are updating from an earlier version, consider the HP-UX

nodes with ServiceGuard Version A.11.13 (patched) that have Cluster

Object Manager patched to show version A.01.03.01. If a person can