CROSS_PROTOCOL_LOCKS
on this OES server has not been set to 1
Fact: Just completed a GroupWise 7 to GroupWise 8.03 Upgrade
Fact: Server running SLES10
Symptom: ConsoleOne gets an error when Administer tries to manage GroupWise. "CROSS_PROTOCOL_LOCKS on this OES server has not been set to 1"
Cause: Running
GroupWise on Linux does not use NCP.
GroupWise is not using NCP as a protocol any longer. The problem is that GroupWise grew up on
Netware, and NCP has some reliability and features built in that neither SMB
nor NFS has. Don't forget that this is a
database. For example, NCP has the concept of a record lock; SMB
(and, IIRC NFS) have no record lock mechanism.
File share modes have been added
to cross protocol locking.
Information: From the NCP Server for Linux Installation and Setup Guide – Pg 19:
3.3.10 Enabling and Disabling Cross Protocol Locks
Cross-protocol locks are disabled by default. Enabling cross-protocol locks
turns on the cross-protocol checking for physical record locks This lets you
run applications from Samba and NCP clients concurrently; and each will
recognize when the other has the file in use. Enabling cross-protocol locks
also enables file share modes. File share modes allow an application to
specify whether or not it allows other clients to read and/or write the file
while it is using it. Commonly, this is used to allow other clients to read the
same file but not write to it while the primary client is using it. Without
share modes, applications incorrectly assume that they have exclusive access to
a file.
Solution:
First: Try rebooting the server that is hosting the
GroupWise MTA.
Second:
You can
enable cross-protocol locks by adding the following line to the /etc/opt/novell/ncpserv.conf configuration file:
CROSS_PROTOCOL_LOCKS 1
You can also
replace the 1 with a 0 to disable cross-protocol locks.
This lock can be enabled through ncpcon. In ncpcon, type "set CROSS_PROTOCOL_LOCKS=1" or add this
line "CROSS_PROTOCOL_LOCKS 1" to the /etc/opt/novell/ncpserv.conf
file. There is a limitation to this too. It only applies to Windows
workstations. The Novell Client for Windows allows the ncp protocol to correctly
enforce this. The Novell Client for Linux does not have this functionality yet.
Note: Do not run Linux version of
ConsoleOne on remote Linux workstation using NFS connection to the Linux
server.
Novell’s intention is for the next generation of GroupWise administration to
use its own client/server technology to eliminate the problems above.
This has been submitted as a DEFECT. (213854
) and (539870)
Written in Novell TID format by Bucky. http://www.nnerds.com
