OMA 12c - Auto tuning doubts

Hi all.
This morning we've received an alert from OEM 12c saying that one of the agents has gone down. Analyzing the logs we could see that the agent was shutdown automatically and put up few minutes later. In the logs description was detected that an auto tuning had started and when it was finished the agent started again. Does anyone know if this is a normal procedure for the agent auto tuning task? Is there a way to change the time this jobs starts?
2013-07-10 09:33:27,030 [main] INFO - EmdCtl Timezone = America/New_York
2013-07-10 09:33:28,894 [main] INFO - Command: run_autotune agent
2013-07-10 09:33:28,933 [main] INFO - Performing AutoTuning
2013-07-10 09:33:30,888 [main] INFO - Library [/oravl01/oracle/app/oracle/agentHome/core/12.1.0.2.0/jlib/agentLib.jar] is loaded
2013-07-10 09:33:30,889 [main] INFO - Library [/oravl01/oracle/app/oracle/agentHome/core/12.1.0.2.0/jlib/ws_fetchlets.jar] is loaded
2013-07-10 09:33:30,890 [main] INFO - Library [/oravl01/oracle/app/oracle/agentHome/core/12.1.0.2.0/jlib/ws_fetchlets.jar] is loaded
2013-07-10 09:33:30,890 [main] INFO - Library [/oravl01/oracle/app/oracle/agentHome/core/12.1.0.2.0/jlib/gccomplianceLib.jar] is loaded
2013-07-10 09:33:34,655 [main] WARN - adding in static cost for collection
2013-07-10 09:33:35,152 [main] INFO - AutoTuning done
Thanks

Bruno,
It would be good to get the screenshots of the following:
1. The incident/event from Incident Manager that indicates the DB is down. Specifically - please capture snapshots of the "Updates" tab within the details.
2. The ruleset definition - since you say you got at least one email - I'll assume the target list on the ruleset is ok - so please provide screenshots of the specific rule including the selection criteria and the actions.
thanks

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there are notes i write but struggle hitting
the automatic tuning has never ( along with other things ) been explained as to how to do it
do you first record the raw take
then double click on it
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Attachments:
test.JPG ‏140 KB

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Saikat Banerjee wrote:
I came to know from an expert that "*If the remote destination is slow and archiver is taking longer to archive to that destination, then the user needs to allocate more redo log groups so that there is a logfile available for a logswitch to switch into, and not wait for the archiver to finish archiving to the destination.*"
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OMA 12c - Auto tuning doubts

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