|Component:||Microsoft Exchange Extensible Storage Engine|
|Message:||<process name> (<process id>) <storage group name>File system error <error code> during IO on logfile <file name>.|
This is an unexpected error that usually indicates that the database is in an inconsistent state and cannot start. This condition could also occur during runtime and may indicate that the log drive failed.
Review the disk and log file to which you are trying to write. Use the Error.exe utility to resolve system errors.
For more information about the error code reference specified in the message, go to www.reskit.com.