Messaging Server ZFS Support

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Does Messaging Server support the use of the ZFS filesystem?

Messaging Server supports the use of the ZFS Filesystem under the following conditions:

  • ZFS support does not apply to Linux platforms.
  • You must be running a minimum of Solaris OS 10 U3 for Messaging Server 6.3 to support ZFS.
  • You must be running at least the following patch level.
Platform 32 bit 64 bit
Solaris SPARC 120228-23 126479-04
Solaris x86 120229-23 126480-04 
These patches have a fix for bug #6580055 - reconstruct cannot detect partially delivered messages

The use of ZFS compression is not recommended at this stage due to bug #6460622 - which results in compression operations being single-threaded and therefore potentially a serious bottleneck. This bug is scheduled to be addressed in Solaris 10u4. Further discussion on ZFS best practice is available here:

http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide

More info on use of ZFS snapshot with the message store here:

http://blogs.sun.com/factotum/entry/breaking_messaging_server_6_3

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