09-07-2001
Optimus,
Your method is mostly correct, but I am not sure about your math!
acutal_size = free * 4096 = bytes
/ 1024 = Kbytes
/ 1024 = Mbytes
/ 1024 = GBytes.
Thats makes the total size of a chunk at 0.9gb
Free:
692mb
944mb
621mb
194mb
Do these numbers seem familiar? Plug them into a spread sheet for more accurate results.
Plus, be very careful when changing the disk allocations of logical volumes underneath Informix' nose. If you screw up, Informix won't like it and a level 0 archive/restore might not cut it either. Do a dbexport to disk or tape. It may take a while, and the restoration, with dbimport, may be a bit trickier with large tables. The benefit would be that the format (dbschema + unload files) is simple and does not rely on the underlying instance configuration on being exactly the same.
MBB.
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LEARN ABOUT SUSE
apache::session::informix
Session::Informix(3) User Contributed Perl Documentation Session::Informix(3)
NAME
Apache::Session::Informix - An implementation of Apache::Session
SYNOPSIS
use Apache::Session::Informix;
#if you want Apache::Session to open new DB handles:
tie %hash, 'Apache::Session::Informix', $id, {
DataSource => 'dbi:Informix:sessions',
UserName => $db_user,
Password => $db_pass,
Commit => 1
};
#or, if your handles are already opened:
tie %hash, 'Apache::Session::Informix', $id, {
Handle => $dbh,
Commit => 1
};
DESCRIPTION
This module is an implementation of Apache::Session. It uses the Informix backing store and no locking. See the example, and the
documentation for Apache::Session::Store::Informix for more details.
USAGE
The special Apache::Session argument for this module is Commit. You MUST provide the Commit argument, which instructs this module to
either commit the transaction when it is finished, or to simply do nothing. This feature is provided so that this module will not have
adverse interactions with your local transaction policy, nor your local database handle caching policy. The argument is mandatory in order
to make you think about this problem.
This module also respects the LongReadLen argument, which specifies the maximum size of the session object. If not specified, the default
maximum is 8 KB.
AUTHOR
This module was written by Jeffrey William Baker <jwbaker@acm.org>.
SEE ALSO
Apache::Session::File, Apache::Session::Flex, Apache::Session::DB_File, Apache::Session::Postgres, Apache::Session
perl v5.12.1 2007-09-28 Session::Informix(3)