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ncdnode(5)							    ncdnode(5)

NAME
       ncdnode - maximum number of open CDFS files (system-wide)

VALUES
   Failsafe
   Default
   Allowed values
       The  minimum  value allowed is The maximum value allowed is memory lim‐
       ited.

       Specify a positive integer value.

DESCRIPTION
       defines the number of slots in the inode table for in the  CD-ROM  file
       systems	(CDFS).	  This number limits the number of open nodes that can
       be in memory for CDFS file systems at any given time.  It is  function‐
       ally similar to but applies only to CD-ROM file systems.

   Who Is Expected to Change This Tunable?
       This  tunable  may need to be modified on systems that run applications
       requiring access to CD-ROM file systems.

   Restrictions on Changing
       The kernel module, which provides the file system type specific support
       for  CD-ROM  file  systems, is now a dynamically loadable kernel module
       (DLKM).	Any changes to the value of the tunable will take effect after
       the  kernel  module  is	unloaded  and re-loaded (see kcmodule(1M)), or
       after system reboot.

   When Should the Value of This Tunable Be Raised?
       The value may need to be raised when running applications which require
       large numbers of simultaneously open CDFS files.

   What are the Side Effects of Raising the Value?
       More  system  memory  will  be  consumed	 for the CDFS nodes.  A larger
       static inode table for CDFS will be created based on the value of  upon
       kernel module load or system reboot

   When Should the Value of This Tunable Be Lowered?
       The  value can be lowered to limit the number of CDFS open files on the
       system and reduce memory consumption.

   What are the Side Effects of Lowering the Value?
       Less system memory will be consumed for the  CDFS  inodes  upon	kernel
       module load or system reboot.

   What Other Tunable Values Should Be Changed at the Same Time?
       None.

WARNINGS
       All HP-UX kernel tunable parameters are release specific.  This parame‐
       ter may be removed or have its meaning changed in  future  releases  of
       HP-UX.

       Installation of optional kernel software, from HP or other vendors, may
       cause changes to tunable parameter values.   After  installation,  some
       tunable	parameters may no longer be at the default or recommended val‐
       ues.  For information about the effects of installation on tunable val‐
       ues, consult the documentation for the kernel software being installed.
       For  information	 about	optional  kernel  software  that  was  factory
       installed on your system, see at

AUTHOR
       was developed by HP.

SEE ALSO
       kctune(1M), kcmodule(1M), sam(1M), gettune(2), settune(2), ninode(5).

			   Tunable Kernel Parameters		    ncdnode(5)

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