buffer cache size

Operating Systems Linux Red Hat buffer cache size

09-07-2006

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buffer cache size

hi everyone,
can any one help change the buffer cache size in redhat and suse?? this error i got when i installed oracle 10g and it went well and when i try to mount the database using startup cmd it says too many buffer cache parameters (error code : ora-1034)

thnq in advance

gsr_kashyap

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LEARN ABOUT HPUX

nbuf

dbc_max_pct(5)							     OBSOLETED							    dbc_max_pct(5)

NAME

       dbc_max_pct, dbc_min_pct, bufcache_max_pct, bufpages, nbuf - OBSOLETED kernel tunable parameter

DESCRIPTION

       These tunables have been obsoleted and removed.	Do not make any changes to these tunables, as they have no effect on the kernel.

       Use the file cache tunables and (see filecache_max(5)).

       In  previous  releases, the tunables and were used to set limits to the dynamic buffer cache, and the tunables and were used for tuning the
       buffer cache when a static cache was desired.

       This release of HP-UX offers improved file caching technology and improved physical memory control associated to  caching  file	I/O  data.
       The  number  of tunable parameters used to control file caching memory usage is reduced from five to two, and previous usability issues are
       addressed.

   Restrictions on Changing
       These tunables should not be modified.  Attempting to tune any of the obsolete buffer cache tunables, or results in an error.

       Use the tunables and to set limits on the file cache.  Note that, on a any given system, the optimum values of these two new  tunables  are
       not necessarily equivalent to the optimum values of the obsolete buffer cache tunable values in the older systems.  You should first deter-
       mine if the new default values yield acceptable performance on your system, before attempting to change the values of the  new  file  cache
       tunables.

AUTHOR

       and were developed by HP.

SEE ALSO

       filecache_max(5).

							     Kernel Tunable Parameter						    dbc_max_pct(5)

Red Hat