IBM 000-8697 User Manual
Operating OnLine
3-23
Change Maximum Number of Logical Log Files
From the Command Line
1.
To change the value of
LTAPESIZE
, use an editor to edit the file
specified by $
INFORMIXDIR
/etc/$
TBCONFIG
.
2.
Change the value of
LTAPESIZE
to the new tape size, expressed in
kilobytes.
Change Maximum Number of Logical Log Files
The maximum number of logical log files is specified as
LOGSMAX
in the
configuration file.
Do not confuse the maximum number of logical log files with the actual
number of log files. You specify the actual number of log files during the
initial configuration as
number of log files. You specify the actual number of log files during the
initial configuration as
LOGFILES
. Thereafter, OnLine tracks the number and
adjusts the value of
LOGFILES
as you add or drop log files.
To obtain the current value of
LOGSMAX,
examine your copy of the config-
uration file or select the Parameter menu, Shared-Memory option and look at
the value in the field
the value in the field
:
Max # of Logical Logs.
To obtain the actual number of log files in your current configuration, either
execute tbstat -l or select the Status menu, Logs option.
execute tbstat -l or select the Status menu, Logs option.
You can change the maximum number of logical log files while OnLine is in
online mode, but it will not take effect until you reinitialize shared memory
(take OnLine offline and then bring it to quiescent mode).
online mode, but it will not take effect until you reinitialize shared memory
(take OnLine offline and then bring it to quiescent mode).
If you are logged in as user informix, you can change the value of
LOGSMAX
from within
DB-M
onitor or from the command line. If you are logged in as
root
, you must use the command-line option.