The following sections summarize the coexistence and migration issues related to storage services.
OES 2 includes the open source MySQL database server on both the NetWare and Linux platforms. When combined with a Web application and a Web server, MySQL is a very reliable and scalable database for use in hosting e-commerce and business-to-business Web applications.
NOTE:The more powerful PostgreSQL* database server comes with SUSE Linux Enterprise Server 10. It has also been ported to the NetWare platform and is available separately as open source software.
OES 2 Linux provides support for Novell Storage Services (NSS) as well as Linux POSIX file systems.
NSS volumes are cross-compatible between NetWare and Linux.
To use NSS on OES 2 Linux, you must have a disk available to be managed by Enterprise Volume Management System (EVMS). The boot partition (such as /boot for Grub) and system partition (such as for the swap and system volumes) are managed by Logical Volume Manager 2 (LVM2). Any disk managed by LVM2 cannot be managed by EVMS, which makes the disks where the boot partition and system partition reside unavailable to NSS.
If you have a single-disk server that you want to install OES 2 for Linux on and create an NSS volume, see Installing with EVMS as the Volume Manager of the System Device
in the OES 2 SP2: Installation Guide.
On OES 2 Linux, you can use NSS volumes only as data volumes. Configure NSS pools and volumes in iManager or NSSMU after the server installation completes successfully.
Starting with OES 1 SP1 NetWare and OES 2 Linux, a new metadata structure provides enhanced support for hard links. After you install or upgrade your operating system, you must upgrade the media format in order to use the new metadata structure; some restrictions apply. For more information, see Upgrading the NSS Media Format
in the NW 6.5 SP8: NSS File System Administration Guide.
For additional information about coexistence and migration of NSS volumes, as well as access control issues for NSS on Linux, see Cross-Platform Issues for NSS
in the NW 6.5 SP8: NSS File System Administration Guide.
You can install NCP Server for Linux to provide NetWare Core Protocol access to Linux POSIX file systems. This allows users running the Novell Client software to map drives to the Linux file system data, with access controls being enforced by NCP.
For more information on using NCP Server for Linux in OES, see the OES 2 SP2: NCP Server for Linux Administration Guide.
Users can access data storage on OES 2 NetWare and OES 2 Linux servers through a number of methods. For more information, see Overview of File Services.
OES 2 NetWare supports both the NetWare Traditional file system and Novell Storage Services (NSS).
After upgrading an older NetWare server to OES 2 NetWare, it is possible for a NetWare Traditional file system volume to still reside on that server. You can continue to use Traditional volumes with OES 2 NetWare, or you can upgrade them to NSS.
For information on converting Traditional volumes to NSS, see Upgrading NetWare 5.1 NSS Volumes and NetWare Traditional Volumes to NSS Volumes
in the NW 6.5 SP8: NSS File System Administration Guide.
If you want to migrate data from a Traditional volume to an NSS volume on OES 2 Linux, use the Novell Server Consolidation Utility 4.0 or later. You must first install NFS name space support on the Traditional volume.
For more information on migrating data from NetWare to Linux, see Understand NetWare-to-Linux Data Migration Issues
in the Novell Server Consolidation and Migration Toolkit Administration Guide.
You can upgrade both NetWare Traditional volumes and Legacy NSS volumes to OES 2.
For more information, see Upgrading Legacy NSS and NetWare Traditional Volumes
in the NW 6.5 SP8: NSS File System Administration Guide.
NSS volumes are cross-compatible between NetWare and Linux servers. You can mount an NSS data volume on either kernel—Linux or NetWare—and move it between them as long as they both support the same media format. In a clustered SAN, volumes that were originally created on a NetWare server can fail over between kernels, allowing for full data and file system feature preservation when migrating data to Linux.
Supporting NSS volumes in a mixed environment and migrating data between OES platforms presents a number of possibilities for your storage solutions. However, to ensure success you must fully understand the proper methods and limitations involved.
For additional information about coexistence and migration of NSS volumes, as well as access control issues for NSS on Linux, see Migrating NSS Devices from NetWare to OES 2 Linux
in the NW 6.5 SP8: NSS File System Administration Guide.