[BlueOnyx:08352] Major Database problem

[Donald Jacques]

The following messages have been appearing in my admin mailbox since 
about 8/27, every 15 minutes.
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Active Monitor has detected recent changes in the state of your server 
appliance.
For more details, please see the Active Monitor section of the Server 
Desktop.

Summary of changes:

*
  -
  -
  -
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I logged in as admin, and found that the server's active monitor 
registers a problem with disk usage.
Attempting to find a way to generate a report of where or what is 
happening with the disk has proven fruitless.
I also attempted to list the Processes (under Server 
Management/Security/Processes) but there is no response from the server 
- it just times out.

In checking the websites I found that ALL my Concrete5 CMS websites are 
down with a database error:
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A database error occurred while processing this request.
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Another site generated the following error:
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mysql error: [1030: Got error 28 from storage engine] in EXECUTE("SHOW 
COLUMNS FROM `btNavigation`")
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In phpMyAdmin, I attempted to view the Structure tab of one of the 
databases, and got the following error:
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Error
Sql query:
Show Full Fields From 'members'
MySql said:
#1030 - Got error 28 from storage engine
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This error occurs across ALL my databases.
All imports fail with file size error.

Though, I can still do several other functions such as browse and 
execute SQL queries.

My last Yum Update occurred 8/25/2011.
Last Server Boot on Aug 28, 2011 at 01:07 AM.
phpMyAdmin - 2.11.9.4
Server version 5.0.77
MySql client version 5.0.77