VERIFY is used to ensure that data written to disk is readable.
To turn VERIFY on or off:
VERIFY [ON | OFF]
To display the current VERIFY status:
- VERIFY is used to ensure that data written to disk by a Dos operation is in a valid form and readable - it does NOT compare the data written to disk with the original (for which you would use the FC command). The most obvious situations when VERIFY would be of use are:
- if a disk drive is proving unreliable;
- bad sectors are creeping onto a hard disk;
- when using nonstandard formatting of floppies.
- When VERIFY is on, all disk writing operations are significantly slowed down as data is written and then read-back.
- All Dos commands involving disk writing operations (such as COPY, XCOPY) etc. have /V switches that effectively turn VERIFY on while that particular command is running.