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Disk Partitioning Utilities - General Informa |
The information in this document applies to:
WordPerfect® 6.0 for DOS
Problem
Symptoms: A customer just installed WP 6.0 for DOS on his computer and the partition table on his extra hard drive was ruined. Solutions: The customer is using a program called Disk Manager from OnTrack to control the extra partitions on his hard drive. He was able to install WP 6.0 to the primary drive that is not controlled by Disk Manager without problems. Please write an STR for customers experiencing problems using WP 6.0 and third-party disk partitioning software. STRs should include the following information: 1. Complete customer information. 2. Hardware information, including the BIOS type, BIOS date, and DOS version used. 3. Name and version of third-party partitioning software, where applicable. 4. The memo ID of this Folio memo. Due to the possible loss of data and/or hard drive functionality, for information regarding upgrading or removing the partitioning drivers, have customers contact their respective third-party vendors. How/Why: Some hard drives are not fully supported by the system BIOS. This most commonly occurs when the disk uses more than 1024 cylinders, which is not supported by the standard IBM ROM BIOS protocol. This situation also occurs when the system BIOS doesn't support a user-defined type, or when the exact combination of heads, cylinders, and sectors per track that the disk uses isn't available. As a result, special disk partitioning utilities have been created that will fully use the hard disk on these systems. Examples of these utilities include, but are not limited to, the following: - Disk Manager by OnTrack Software (DMDRVR.BIN, XBIOS.OVL) - SpeedStor by Storage Dimensions (SSTOR.SYS, HARDRIVE.SYS) - VFeature Deluxe by Golden Bow Systems (FIXT_DRV.SYS) - InnerSpace by Priam Systems (EDVR.SYS) - Everex by Everex Systems (EVDISK.SYS) The loss of the partition can occur when a program tries to write directly to the 1024th cylinder. At this point, wrapping can occur which can overwrite the partition table. Another possibility at this point is the loss of the boot information, resulting in the inability to boot from the hard drive. Customers using Disk Manager who experience any of these kinds of problems when installing WP 6.0 should contact OnTrack technical support to help them restore the partition. The following information is specific to MS-DOS 5.0: The MS-DOS 5.0 ability to access hard drives is based on the standard AT ROM BIOS interface maximum of 1024 cylinders. DMDRVR.BIN and SSTOR.SYS have the ability to work around the 1024 cylinder limit. The drivers are provided with the MS-DOS 5 Upgrade as a convenience, and are designed to replace existing drivers. If you use Ontrack Disk Manager, instructions on how to update the driver can be found in section 2.4 of the MS-DOS 5.0 README.TXT file. MS-DOS 5.0 is compatible with DMDRVR.BIN versions 4.x. According to Ontrack Computer Systems, the version 5.0 driver provided with MS-DOS 5.0 is derived from the original DMDRVR.BIN version 4.2. DMDRVR.BIN and SSTOR.SYS are provided only with the MS-DOS 5 Upgrade, not with the MS-DOS 5.0 OEM (original equipment manufacturer) version. DMDRVR.BIN/Disk Manager is a product of Ontrack Computer Systems. SSTOR.SYS is a product of Storage Dimensions, Inc. More information regarding Disk Manager, OnTrack, and DMDRVR.BIN can be found in the MSBase infobase. |
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