Automatic retry is also utilized with magnetic tape. Imperfections on the surface of the magnetic tape that interfere with reading or writing can be dislodged by back-spacing the tape and trying again.
Whereas, disc drives utilize automatic retry to facilitate successful read/write operations. Depending on the deployed hardware, the original error-free read/write may fail because the data is slightly misaligned with the designated recording track. To remediate the condition, the read/write operation will be repeated several times at different offset locations until the required action is performed or until it is clear that some other problem is at fault.
Post Note: “IT Equipment Functionality and Integrity Checks – Part IV” was originally published through Suite101.com under the title “IT Equipment Functionality and Integrity Checks”