Vmstat fault section all values are 0


 
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Operating Systems AIX Vmstat fault section all values are 0
# 8  
Old 02-20-2013
Here is an example of vmstat focusing on paging - and showing file activity.
Code:
root@x106:[/]vmstat -I -w -P ALL 5

System configuration: mem=1024MB

pgsz            memory                           page                 
----- -------------------------- ------------------------------------ 
           siz      avm      fre    fi    fo    pi    po    fr     sr 
   4K   175856    89003     1018  4820  4806     0     0  9604  18549 
  64K     5393     5240      153     0     0     0     0     0      0 

   4K   175856    89003     1088  4789  4813     0     0  9627  18281 
  64K     5393     5240      153     0     0     0     0     0      0 

   4K   175856    89003     1088  4752  4701     0     0  9504   9515 
  64K     5393     5240      153     0     0     0     0     0      0 

   4K   175856    89003     1088  4738  4749     0     0  9474  14739 
  64K     5393     5240      153     0     0     0     0     0      0

Another program to investigate is filemon to get a deeper analysis/insights into what the i/o system is doing.
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Session::Store::Oracle(3)				User Contributed Perl Documentation				 Session::Store::Oracle(3)

NAME
Apache::Session::Store::Oracle - Store persistent data in a Oracle database SYNOPSIS
use Apache::Session::Store::Oracle; my $store = new Apache::Session::Store::Oracle; $store->insert($ref); $store->update($ref); $store->materialize($ref); $store->remove($ref); DESCRIPTION
Apache::Session::Store::Oracle fulfills the storage interface of Apache::Session. Session data is stored in a Oracle database. SCHEMA
To use this module, you will need at least these columns in a table called 'sessions': id varchar2(32) # or however long your session IDs are. a_session long To create this schema, you can execute this command using the sqlplus program: CREATE TABLE sessions ( id varchar2(32) not null primary key, a_session long ); If you use some other command, ensure that there is a unique index on the table's id column. CONFIGURATION
The module must know what datasource, username, and password to use when connecting to the database. These values can be set using the options hash (see Apache::Session documentation). The options are DataSource, UserName, and Password. Example: tie %hash, 'Apache::Session::Oracle', $id, { DataSource => 'dbi:Oracle:database', UserName => 'database_user', Password => 'K00l' }; Instead, you may pass in an already-opened DBI handle to your database. tie %hash, 'Apache::Session::Oracle', $id, { Handle => $dbh }; The last option is LongReadLen, which specifies the maximum size of the session object. If not supplied, the default maximum size is 8 KB. AUTHOR
This modules was written by Jeffrey William Baker <jwbaker@acm.org> A fix for the commit policy was contributed by Michael Schout <mschout@gkg.net> SEE ALSO
Apache::Session, Apache::Session::Store::DBI perl v5.12.1 2007-09-28 Session::Store::Oracle(3)