Search Alert "First Search"
A double index condition was detected (e. g., the controller could not find the desired
sector number on the addressed track).
Cyclic Code Error "Not First Search"
The controller detected a cyclic code error on the count field read from the addressed
track on a search after the first search (e. g., some data has been transferred).
Search Alert "Not First Search"
The controller could not find the desired sector number after the first search, or no
count field was found after head switching (e. g., the controller found the first sector and
transferred data, but could not find the second or subsequent count field).
Sync Byte Error
The synchronization byte read from the addressed track was not as expected.
Alternate Track Error
An error occurred in going to, processing, or returning from an alternate track.
EDAC Correction - Last Sector
A data error that may be correctable occurred in the last sector required (i. e., I/O
was completed).
EDAC Correction - Not Last Sector
A data error that may be correctable has been detected and the I/O has not been
cOITlpleted (i. e., the IDCW tally has not run out).
EDAC Correction - Block Count Limit
A data error that may be correctable occurred in the last sector required (i. e., I/O
was cOITlpleted because one block count limit was exhausted) •.
EDAC Uncorrectable
A data error has been det.-::
~.:;ted
that is not correctable.
2-26
DB37