HP UX Common Internet File System (CIFS) Client/Server Software manual

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NetApps SecureShare provides Mandatory Share Mode (open mode) locking for concurrent access with PC-NFS and UNIX/NFS. CIFS/9000 provides this locking feature at the HP-UX September 2001 Application Release.

NetApps SecureShare provides byte range locking interoperability even for UNIX/NFS processes that do not participate in the advisory locking protocol. CIFS/9000 has a planned enhancement scheduled to provide the same locking feature. Please read Chapter 3 and Appendix B to understand the actual significance of this capability.

NetApps SecureShare provides Oplock support for Windows clients with concurrent access from PC-NFS and UNIX/NFS. SecureShare will send an Oplock break to a Windows client when a PC-NFS client performs an open on the file, and when a UNIX/NFS client reads or writes to a file. CIFS/9000 has a planned enhancement scheduled to provide the same locking feature.

Empirical data will be added when test equipment becomes available.

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Contents Version 1.03 September Eric Roseme Snsl Advanced Technology CenterE0300 Copyright Notices Legal NoticesContents Introduction CIFS/9000 Product Overview ACL File Locking OverviewPage Windows Cifs File Locking ImplementationsPage NFS UnixPC NFS CIFS/9000 File Locking Implementation Mandatory Share Mode Locking Open ModePage Page Page CIFS/9000 File Locking Interoperability Examples Windows only Client Access Local File SystemPage Windows only Client Access NFS Mounted File System Page Windows and Unix Client Access Local File System Page Windows and Unix Client Access NFS Mounted File System Page UNIX/NFS PC-NFS Page Unix PC-NFS Page Clients Page CIFS/9000 Locking Summary Mandatory Share Mode Open Mode CIFS/9000Byte Range Locking OplocksCIFS/9000 Competition Locking Summary Network Appliance Mandatory Share Mode Open ModePage EMC Celerra Mandatory Share Mode Open Mode EMC CelerraPage Mandatory Share Mode Open Mode Auspex NeTservices Auspex NeTservicesPage Veritas File Server Edition Mandatory Share Mode Open Mode Veritas FSEEMC Locking Summary TableCIFS/9000 File Locking Interoperability Summary Page Appendix a smb.conf Examples Smb.conf for Windows-Only AccessSmb.conf for Mixed-Mode Access Determine Locking Requirement Appendix B Sales Tool Locking Technology ExamplesByte Range Locking CIFS/NFS Open Mode Locking CIFS/NFS Open Mode Locking Competitor’s Claims for NFS Non-Locking Protection

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