FTDISK warning messages in Exchange 2003 server

2 Node Exchange 2003 Cluster with SAN

The following warnings are displayed in Event Viewer:

Event ID 57: The system failed to flush data to the transaction log.
Corruption may occur.

&

Event ID: 26 Application popup: Windows - Delayed Write Failed : Windows was
unable to save all the data for the file Z:\$Mft. The data has been lost.
This error may be caused by a failure of your computer hardware or network
connection. Please try to save this file elsewhere.

&

Event ID: 50 {Delayed Write Failed} Windows was unable to save all the data
for the file . The data has been lost. This error may be caused by a failure
of your computer hardware or network connection. Please try to save this file
elsewhere.

I am not currently having any issues with Exchange. I am trying to
determine if these warning messages are something to be concerned about.

I also noticed that the majority of the errors occur when the backups are run.
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Thanks
Steve
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