_ DEC-O-LOG for RZ55S _ DOL, RZ55-I001, RZ55-E Disk Drive AUG 90 RZ55-I001 AUG 1990 - PROBLEM: The RZ55 disk drive does not provide optimum performance on RISC Workstations running Ultrix based applications, and Firefox systems running VMS 5.2 and above. FIELD EFFECTIVITY: This FCO applies to RZ55-E SCSI Disk Drives that are configured on (DS3100, DS2100, VAXstation 3520, and 3540) using Ultrix and VMS 5.2 and above. QUICK CHECK: RZ55-E Rev. A01 does not have look-ahead caching microcode. RZ55-E Rev. B01 has the look-ahead caching enhancement. The DEC on-site labor charge will be the time required to install and test the FCO at the then current hourly rate. FCO KIT ORDERING: EQ-01581-02 FCO, Parts FA-04910-02 FCO Document (European Version Also Available)