HP CIFS Server 3.0k Administrator's Guide version A.02.04

• share modes: This boolean parameter controls whether to enable or disable the honoring
of the share modes during a file open. These modes are used by clients to gain exclusive
read or write access to a file. You must set this option to yes (the default setting).
• kernel oplocks: It is a boolean variable. If set it to yes, HP-UX processes and NFS clients
can concurrently access files with CIFS clients with no risk of file corruption when
opportunistic locking is turned on. You must set it to yes if oplocks is turned on. Both
kernel oplocks and oplocks are turned on by default.
If the above parameters are not configured properly with CFSM, the concurrent file accesses
from NFS or other local programs may cause file corruption.
You should configure CFSM for file systems where files may be concurrently accessed by CIFS
clients and NFS clients or local processes.
CFSM may be configured for all file systems with files shared through CIFS Server. Since the
performance impact of CFSM is minimal, this is the simplest way to eliminate the risk of file
corruption due to NFS or local user accesses.
Stacking CFSM 161