=
AST RESEARCH, INC. TECHNICAL BULLETIN # 1405 1-24-96
=
Manhattan P Partition with OS/2 2.1 on RAID Systems
PROBLEM
OS/2 version 2.1x FDISK will only allow partitions smaller than 8GB to be
created on Manhattan P servers with DPT RAID controllers.
CAUSE
The HBA I/O address is at its default AUTO setting. This setting only works
with PCI aware drivers and operating systems. OS/2 2.1x is not PCI aware,
although the DPT SCSI driver is.
SOLUTION
Configure the SCSI controller for any of the available fixed I/O addresses
(170, 230, 330, 1C88 - FC88H). This may be done by pressing
while the system displays the message " for DPT Configuration
Utility", and then selecting the appropriate I/O address in the menu
displayed.
SYSTEMS AFFECTED
AST PART NUMBER AND DESCRIPTION
501502-XXX Manhattan P5090AE
501503-XXX Manhattan P5100AE
501830-XXX Manhattan P5133
Systems upgraded with dual channel PCI SCSI HBA (501626-001).