5.9 Using Novell Distributed File Services with DST Shadow Volumes

Novell Distributed File Services (DFS) is installed automatically as part of the NSS file system. Dynamic Storage Technology supports using DFS junctions on the primary NSS volume in a shadow volume pair. The primary volume can also be the target of a junction. Primary NSS volumes that contain DFS junctions or are junction targets can reside in an Novell Cluster Services cluster.

DST does not support using DFS junctions on the secondary volume. The secondary volume cannot be the target of a junction.

Junctions that are created on a primary NSS volume behave normally as they would for a single NSS volume. The policy enforcer is designed to prevent junctions from being moved between the primary and secondary volumes when policies are run.

Table 5-4 summarizes the supported DST configurations for use with DFS:

Table 5-4 DST Support for Novell DFS Features

Novell DFS Features

Primary NSS Volume

Secondary NSS Volume

Cluster

File Access Protocol

Junctions

Yes

No

Yes

NCP

Novell CIFS. DFS support must be enabled in CIFS. See DFS Junction Support in CIFS Linux in the OES 2 SP3: Novell CIFS for Linux Administration Guide.

Linux Samba does not support DFS junctions for NSS volumes.

Junction targets

Yes

No

Yes

Not applicable

Move/split volumes

No

No

No

Not applicable

When you use DST shadow volumes in combination with Novell DFS junctions, consider the following caveats: