SCO OpenServer Handbook
Chapter 18, Adding hard disks
Supported hard disk configurations

Supported hard disk configurations

Many hard disks can be used with SCO OpenServer systems. Most IDE, EIDE, ESDI, Compaq IDA, and SCSI disk controllers are supported.

NOTE: The SCO OpenServer system supports large (more than 528MB) EIDE disks that use logical block addressing (LBA) but it does not support the full EIDE command set.

On ISA, EISA, MCA, and PCI bus machines, the wd device driver is used with disks which present a WD1010 or ST506 interface. This includes IDE and EIDE drives. The Sdsk device driver is used with all SCSI disks.

On MCA bus machines, the esdi device driver is used with ESDI disks. The st506 device driver is used with ESDI disks which are configured to present an ST506 interface.

Refer to the SCO Hardware Compatibility Handbook for a list of supported disk drives.

NOTE: The MAX_DISK dynamic kernel parameter limits the number of disks that are supported by the kernel. You may need to use the Hardware/Kernel Manager or the configure(ADM) command to change its value if you previously set MAX_DISK to limit the maximum number of disks. A value of 0 allows the kernel to support more disks dynamically.