Novell OPEN ENTERPRISE SERVER - CONVERSION GUIDE 12-2010, Implementation Manual

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Caveats for Implementing OES 2 Services 69
Although some administrators have successfully created NSS volumes on hard disks managed by
non-EVMS volume managers, there are serious management and configuration limitations
associated with this unsupported implementation. For more information, see “
Using NSS on
Devices Managed by Non-EVMS Volume Managers ” in the OES 2 SP3: NSS File System
Administration Guide for Linux .
NOTE: EVMS support is automatic and requires no manual configuration unless NSS is being
installed on the device that contains the boot (
/boot
) and root (
/
) partitions (the system device). In
that case only you must follow the instructions in “ Installing with EVMS as the Volume Manager of
the System Device ” in the OES 2 SP3: Installation Guide .
6.16 OpenLDAP on OES 2
You cannot run OpenLDAP on an OES 2 server with eDirectory installed. eDirectory LDAP is
required for OES 2 services and uses the same ports as OpenLDAP.
6.17 Samba
For Samba implementation caveats, see “ Samba Caveats ” in the OES2 SP3: Samba Administration
Guide .
6.18 Virtualization Issues
The following are caveats for setting up OES 2 server in Xen VMs:

Section 6.18.1, “Always Close Virtual Machine Manager When Not in Use,” on page 69

Section 6.18.2, “Always Use Timesync Rather Than NTP,” on page 69

Section 6.18.3, “Backing Up a Xen Virtual Machine,” on page 70

Section 6.18.4, “Time Synchronization and Virtualized OES 2,” on page 70

Section 6.18.5, “NSS Considerations,” on page 70
6.18.1 Always Close Virtual Machine Manager When Not in Use
You should always close Virtual Machine Manager (VMM) when you are not actively using it.
Virtual Machines are not affected.
Leaving VMM open can affect the system resources available to the VMs.
6.18.2 Always Use Timesync Rather Than NTP
Time synchronization problems have been observed when virtualized NetWare servers are running
the XNTPD NLM. Therefore, Novell strongly recommends using Timesync and also configuring
the service to communicate through NTP.