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- DOCUMENT:Q103935 02-NOV-1993 [W_NT]
- TITLE :QIC 40/80 Tape Backups Use a QIC-117 Driver in Windows NT
- PRODUCT :Windows NT
- PROD/VER:3.10
- OPER/SYS:WINDOWS
- KEYWORDS:
-
- ----------------------------------------------------------------------
- The information in this article applies to:
-
- - Microsoft Windows NT operating system version 3.1
- - Microsoft Windows NT Advanced Server version 3.1
- ----------------------------------------------------------------------
-
- Windows NT supports the use of the QIC-40/QIC-80 tape backup drives.
- However, the driver they use is named QIC-117.SYS; there are no files
- named QIC-40.SYS or QIC-80.SYS.
-
- According to the QIC documentation, QIC-40 and QIC-80 are two types of
- "Flexible-Disk-Controller-Compatible Recording Format for Information
- Interchange." The specifications are as follows:
-
- 20 tracks, 10,000 bpi, MFM Encoded (QIC-40)
- 28 tracks, 14,700 bpi, MFM Encoded (QIC-80)
-
- QIC-117 is described as a "Common Command Set Interface Specification
- for Flexible Disk Controller Based Minicartridge Tape Drives."
-
- Therefore, QIC-40/80 is the name of a physical format standard and
- QIC-117 is the name of the command set used on QIC-40/80 drives, which
- is why the driver is named QIC-117.SYS in Windows NT. In other words,
- QIC-117 is the interface used to communicate with the drive while
- QIC-40/80 is the physical format used on the tape. Windows NT Backup
- uses Microsoft Tape Format (MTF) as its native format. MTF is not read
- or write compatible with QIC-40/80. Thus you cannot exchange tapes
- between Windows NT Backup, which uses MTF, and Colorado Memory
- Systems' Backup software, which uses QIC-40/80.
-
- The QIC products included here are manufactured by a vendor
- independent of Microsoft; we make no warranty, implied or otherwise,
- regarding these products' performance or reliability.
-
- Additional reference words: 3.10 third-party third party isv
- 3rdparty
- KBCategory:
- KBSubcategory: hrdwr
-
- =============================================================================
-
- THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
- PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS
- ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO
- EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
- ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
- CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
- MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
- POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION
- OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
- SO THE FOREGOING LIMITATION MAY NOT APPLY.
-
- Copyright Microsoft Corporation 1993.