_ DEC-O-LOG for CIBCA

_ DOL, CIBCA-I001, CI - BI JUL 88

PROBLEM: CIBCA.BIN V4.3: HSCX0/CIBCA virtual-circuits may
close on disk/tape BACKUPS or on high disk I/O rates, due
to CIBCA microcode inefficiency with processing RETDAT
(Return-Data) function.  Also adds enhancements for future
products.
   CIBCA.BIN V4.3 (DIAG-REL-30) was also the first official
distribution of V3_EEPROM "Self-Test" microcode.  EEPROM
update requires use of EVGDA "EEPROM Program Utility".
   Due to a CIBCA microcode bug, CIBCA buffer-transfers to
VMS memory of less than 16-bytes at exact octaword boundaries
will "write" the entire 16-byte buffer, corrupting the end of
this buffer.  Such transfers may result from unusually short
VMS RMS record "GET/READ" operations during an application
file-access.  The CI transaction involves the CI's RETDAT
or SNTDAT packets, used during HSC/CI or CI/CI (MSCP-served-disk)
buffer-transfers. It also adds CIBCA functionality and
EEPROM ucode and adds code to Data Mover Service Routine.
    NOTE: This problem predominately impacts 3rd-party non-Dec
applications:  One example is PATRAN from PDA.     

FIELD EFFECTIVITY: This FCO will upgrade the CIBCA option to
Rev. "D1".  It upgrades the CIBCA microcode CIBCA.BIN on all
VAX 82X0/83X0/85X0/8700/8800 and 897X Console Media to Version
V5.3 on all CIBCAs.  This FCO includes ECO BL-FJ11CME-MK001
(V4.3 CIBCA.BIN) and BL-FJ11DME-MK001 (V5.3 CIBCA.BIN).     

QUICK CHECK: Loaded CIBCA Ucode can be examined at BB+108C
(functional) and BB+1090 (EEPROM), after CIBCA passes self-test,
and is loaded with CIBCA.BIN by VMB.EXE.  CIBCA.BIN file
version can be checked with DCL "DUMP/BLOCK=(S:1,C:" - Refer
to CIBCA User's Guide, Page 4-1.     

        
FCO KIT ORDERING:
FA-04803-01  FCO Document only