ORA Database Error Messages ORA-17507: I/O request size string is not a multiple of logical block size December 23, 2015 mpbod ORA-17507: I/O request size string is not a multiple of logical block size Cause: i/o's are done in multiple of logical block size Action: Check additional error messages Back to previous menu https://support.oracle.com/ http://www.oracle.com/ Share this:Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)