CA DMV seems to be prone to making bad implementation choices. Back
when I was working for Univac (35 years ago) on the former RCA
systems, I found that the CA DMV systems were on RCA equipment, with
the databases on the RCA RACE equipment (similar to the IBM data
cells, but not compatible).
The 3488 was quite different from the 2321. It had a separate
extraction mechanism for each magazine instead of stringing the
magazines around a rotating drum, and used a linear raceway for the
extracted cards. The performance and reliability issues of the two
devices[1] were quite different.
One of my jobs at Univac/RCA was maintaining the error recovery routines
for I/O devices, incluing the RACE. Luckily, the system was so flakey
that it was easy to generate errors to test with. Unluckily, there was
little you could do to recover from a card that got crunched going down
the raceway.
--
Bruce A. Black
Senior Software Developer for FDR
Innovation Data Processing 973-890-7300
personal: [EMAIL PROTECTED]
sales info: [EMAIL PROTECTED]
tech support: [EMAIL PROTECTED]
web: www.innovationdp.fdr.com
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html
