This FLT solves limit of 502 GB for SCSI disks. New limit is 2 Terrabytes; Tested with external SCSI raid with ~570 GB capacity.

"Currently OS/2 DASD subsystem doesn't support disks with capacity more than 502 Gb. DaniS506.ADD, the great driver by Daniela Engert

([url]), may be used for huge IDE/ATA drives to avoid 502 Gb size limitation. But there is no solution for large SCSI RAID devices.

up2TB.flt driver allows to use in OS/2 hard disks of any types with capacity up to 2 Terabytes (actually up to 2032 Gb). This is not real disk controller driver, but so-called filter driver, that works with native

hardware .ADD driver. up2TB.flt simply alters CHS disk geometry information passed to system (actually to OS2DASD.DMD) so the whole disk capacity may be successfully used in OS/2.

Currently only non-removable HDDs are supported."