Tom Lane wrote:
M Rather <mrather@definedlogic.com> writes:
  
one of our clients is using pgsql 8.1, and recently the site crashed due 
to lack of hard disk space. Upon inspection a file was found :
    

  
pgsql.broken.csc  (size: > 51 GB)
    

  
I cannot find any reference to this file on pgsql site or on google.
    

  
What is this file? Is it related to PGSQL? What caused it to grow to 
this size?
    

PG would never make a file named that.

Did you try looking into the file to see what it contains?

			regards, tom lane

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TIP 5: don't forget to increase your free space map settings

  
I should have mentioned this in my original email.
Unfortunately the file was deleted by the hosting service (our client had OK'd it) to bring the site backup immediately.

I may have to see if some other process (valid or malicious) may have created the file.

Thanks and Regards
-MRather