User Guide

Ampex 1308911-02 5-33
libdd2 API Functions dst_getlog
wrerrc Write Errors Corrected - The number of successful applications of the
write retry algorithm that occurred within the allowed number of retries.
wrretry Write Retries - The total number of times the drive attempted a write
retry, regardless of whether the write attempt succeeded.
wrerru Write Errors Uncorrected - The number of unsuccessful applications of
the write retry algorithm that occurred within the allowed number of
retries.
rderr Read Errors - The total number of read errors encountered, including
those detected during retries.
rderrc Read Errors Corrected - The number of successful applications of the
read retry algorithm that occurred within the allowed number of retries.
rdretry Read Retries - The total number of times the drive attempted a read
retry, regardless of whether the read attempt succeeded.
rderru Read Errors Uncorrected - The number of unsuccessful applications of
the read retry algorithm that occurred within the allowed number of
retries.
nmerr Non-Medium Errors - The number or recoverable error events other
than write, read, or verify failures.
servstats Service Statistics - Structure for storing the 31 service statistics
parameters (see the
dst_log_serv_st structure in the dstio.h
file and Table E-1.). This information is intended to aid service
personnel in diagnosing and correcting problems.
optmstats Transport Module Operational Statistics - Structure for storing the 24
transport statistics parameters (see the
dst_log_optm_st structure
in the
dstio.h file and Table E-2.).
opemstats Electronics Module Operational Statistics - Structure for storing the 99
electronics statistics parameters (see the
dst_log_opem_st structure
in the
dstio.h file and Table E-3.).
msrstats MSR Diagnostic Statistics - Character array for storing up to 620 bytes
of diagnostic statistics (see the
dst_log_opem_st structure in the
dstio.h file and Appendix D). This information is intended to aid
service personnel in diagnosing and correcting problems.
RETURN VALUES
The return value is DST_SUCCESS (0) or DST_FAILURE (-1). See “DST API Overview” on
page 5-1 for information on
errno failure messages and associated DST result codes.