Forum Discussion
karthic_n_12765
Nimbostratus
Mar 12, 2004Do changes made thru iControl persist across power down&
Hello,
I observed a couple of times that changes made to BIG-IP configuration thru iControl vanished when I powered the BIG-IP off and back on. That is not expected, right? Or is there a "c...
Mar 16, 2004
Karthic, It turns out that saving state to disk is a costly event (in CPU and disk usage). When designing the usage of iControl we had two options to model from. 1) the CLI bigpipe command where all commands are not persited until a "bigpipe save" is performed. or 2) the GUI where each page submission causes a persistent save to occur.
In our initial usage analysis we found that the impact of causing a config save on each iControl method would cause the client applications that relied on immediate response to be delayed too long inbetween calls.
So we opted for the bigpipe model where a "save" command is needed to persist state. You can do this with the
void save_configuration(
in String filename,
in SaveMode save_flag
);
method. Give a filename specifying the .ucs file to be stored in the /usr/local/ucs directory.
-Joe
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