A.1 Using EVMS to Manage the System Device

The Novell Storage Services file system requires that the Enterprise Volume Management System (EVMS) be used as the volume manager of devices that contain (or will contain) NSS pools and volumes. NSS management tools cannot see devices managed by non-EVMS volume managers, so those devices and the space on them are unavailable for creating NSS pools and volumes. EVMS also makes it possible to use the full range of services that NSS offers. NSS is not supported or tested for non-EVMS volume managers.

IMPORTANT:NSS management tools require that the devices you use for NSS pools and volumes be managed by EVMS.

For a list of the NSS capabilities that are not available when using a non-EVMS volume manager, see NSS Limitations for Non-EVMS Volume Managers in the OES 2 SP3: NSS File System Administration Guide for Linux.

SUSE Linux Enterprise Server 10 supports LVM2 and EVMS as volume managers; however, a given device can be managed by only one volume manager at a time. LVM2 is the default volume manager for SUSE Linux. During the install, the YaST Installation Settings page automatically recommends a partitioning scheme that uses LVM2 as the volume manager of the primary device and that allocates the entire disk for the Linux system partitions and POSIX file systems.

This default partitioning scheme creates two problems for administrators who want to use NSS pools and volumes on the same device as the system partitions:

Possible workarounds for these problems are: