OpenAFS

AFS is a distributed filesystem product, pioneered at Carnegie Mellon University and supported and developed as a product by Transarc Corporation (now IBM Pittsburgh Labs).

It offers a client-server architecture for file sharing, providing location independence, scalability and transparent migration capabilities for data.

IBM branched the source of the AFS product, and made a copy of the source available for community development and maintenance. They called the release OpenAFS.

What is new in this release:

• Windows cache coherency issues fixed.
• Fix BSOD condition
• when multiple threads attempt to open the same file system object simultaneously resulting in memory corruption.
• the stack is exhausted as a side effect of an out of memory condition.
• Prevent a potential AFS FileLock leak during file cleanup.
• Improved handling of VNOVOL and VOFFLINE errors when produced by the file server during a volume backup, readonly release or salvage operation.
• Reduced CPU utilization.

What is new in version 1.6.1 Pre4:

• 1.6.1pre4 includes two fileserver fixes which will be required for 1.6.0 users to ensure replicated data consistency on the server. Sites not already running 1.6.0 should wait for 1.6.1 to upgrade fileservers. Additionally, updated support for Linux kernel versions as well as fixes to Rx idle connection and client NAT ping support are included.

What is new in version 1.7.8:

• Improved compatibility with anti-virus and other anti-malware products.
• Significant improvements in processor utilization and parallel processing.
• BSOD issues fixed.
• Avoid race during file control block deallocation.
• Disable bugcheck in release builds. Too many out of memory conditions were triggering BSODs.
• Deadlocks avoided
• VolumeCB->ObjectInfoTree.TreeLock
• ExtentsResource during CcPurge
• Directory and file data synchronization errors fixed.
• Permit rename of a file to itself without error.
• Permit Explorer Shell to set UNIX mode bits.
• Ignore AFS File Server file lock counts when deciding whether fail a lock request. File Servers prior to 1.6.1pre5 do not report accurate values.

What is new in version 1.5.77:

• For all systems, minor bugs were fixed, including Rx fixes and vos dryrun improvements.
• RXAFS_GetStatistics64 now returns statistics properly.
• For all Unix platforms, the cacheout program is now built, and a potential panic in bulkstatus is avoided. On FreeBSD, shutdown of the Rx kernel listener was fixed to avoid a potential dereference after it's gone.
• On Linux, the packaging was updated for the current configure options and built files.
• On MacOS, the DNS resolver is reinitialized on IP address change.
• On Windows, the software properly fails over to other replicas on bulkstat IO errors, and directory entry buffers are validated to avoid crashing the service.

What is new in version 1.4.12:

• With a number of fixes on top of OpenAFS 1.4.11, the fourth release candidate for OpenAFS 1.4.12 has been released.

What is new in version 1.5.72:

• OpenAFS 1.5.72 is the sixth release of OpenAFS for Windows 7 and Server 2008 R2 and provides the best user experience for users on all supported Microsoft Windows platforms. 1.4.11 is the recommended release for all other users. Due to data loss issues present in all versions of OpenAFS prior to 1.5.62 and believed to be in IBM AFS, all Windows users are urged to upgrade.
• 1.5.72 is also the most recent in the series of releases intended to provide new experimental features including the Demand Attach File Service and Disconnected AFS, on other platforms including MacOS X, Linux variants, and UNIX, and includes several bug fixes since 1.5.71. 1.5.72 is again suitable for Linux clients.

What is new in version 1.5.69:

• OpenAFS 1.5.69 is the third release of OpenAFS for Windows 7 and Server 2008 R2 and provides the best user experience for users on all supported Microsoft Windows platforms. 1.4.11 is the recommended release for all other users. Due to data loss issues present in all versions of OpenAFS prior to 1.5.62 and believed to be in IBM AFS, all Windows users are urged to upgrade.
• 1.5.69 is also the most recent in the series of releases intended to provide new experimental features including the Demand Attach File Service and Disconnected AFS, on other platforms including acOS X, Linux variants, and UNIX, and includes several bug fixes since 1.5.68.

What is new in version 1.5.66:

• This is the recommended production-ready release for Microsoft Windows users. Other platforms should use 1.4.11.
• This release has official support for Windows 7 and Server 2008 R2.
• It prevents a file server bug from causing an "unexpected network error" when writing to files.
• It promotes DNS SRV records as superior to DNS AFSDB records.
• It fixes the SMB redirector disconnecting sometimes.
• All UNIX clients support SRV records for discovering AFS servers.
• A race/crash in volserver has been fixed. Mac OS X has Preferences Pane improvements.
• Core file handling works correctly on HP-UX.

What is new in version 1.5.65:

• This is the recommended release for Windows users.
• All others should use 1.4.11.
• On Windows, a server bug where the returned length of a file was wrong is now avoided.
• Roaming profiles on some Windows XP systems have been fixed.
• On all Unix clients, erroneous server and client handling of lengths on data reads has been fixed.
• On all servers, a race condition has been fixed in DAFS.
• Potential "negative length" fetches are avoided.
• A leak in the file server has been fixed.
• Linux supports background page copies and readpage() for enhanced cache performance.
• Mac OS X has Preferences Pane cleanup.
• On Solaris, fs_pathconf has sensible defaults.