InnoDb Database Shutdown

[orkunerbil]

Hello, we have this error in error logs now a days in it keeps on halting mysql server.ibdata1 file is around 500 mb each time, and there is no disk quata.Any help will be apreciated.
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070122 20:42:17 InnoDB: Database was not shut down normally!
InnoDB: Starting crash recovery.
InnoDB: Reading tablespace information from the .ibd files...
InnoDB: Restoring possible half-written data pages from the doublewrite
InnoDB: buffer...
070122 20:42:18 InnoDB: Operating system error number 1453 in a file operation.
InnoDB: Some operating system error numbers are described at
InnoDB: [dev.mysql.com]
InnoDB: File name .\ibdata1
InnoDB: File operation call: 'aio read'.
InnoDB: Cannot continue operation.