How to check for possible Oracle database 11g corruption?

Our Oracle 11g database unexpectly rebooted (the cause is still being investigated but was not related to the OS or Oracle).  I just want to make sure that there are no issues with the database itself.  Is there internal checking that Oracle 11g does by itself to make sure the database is okay?  Or is there a command that should be ran to verify this?
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slightwv (䄆 Netminder) Commented:
Oracle does this all by itself on startup for the most part.  The alert log will show the crash recovery.

There is a utility called dbv that will perform block checks.

You can also check this with RMAN:
You can use Oracle Health Checks with Health Monitor-  Using PL/SQL or ADR

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jeffrey_b_leeAuthor Commented:
It should be the database server rebooted unexpectedly.  Treat it as a loss of power.
slightwv (䄆 Netminder) Commented:
>>It should be the database server rebooted unexpectedly.  Treat it as a loss of power.

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