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- DOCUMENT:Q108304 15-DEC-1993 [W_NTAS]
- TITLE :Recovering from Loss of FT Disk Configuration Information
- PRODUCT :Microsoft Windows NT Advanced Server
- PROD/VER:3.10
- OPER/SYS:WINDOWS
- KEYWORDS:
-
- --------------------------------------------------------------------------
- The information in this article applies to:
-
- - Microsoft Windows NT Advanced Server version 3.1
- --------------------------------------------------------------------------
-
- SYMPTOMS
- ========
-
- You have fault tolerant partitions (such as Stripes with Parity and
- Mirrors), but cannot access them and they appear in Disk Administrator as
- type Unknown.
-
- This problem may occur after you have replaced your boot drive and
- installed Windows NT Advanced Server on it.
-
- RESOLUTION
- ==========
-
- To avoid experiencing this problem, save the disk configuration whenever
- there is a change, such as adding fault tolerance. You can do this in Disk
- Administrator from the Partition menu by choosing Configuration, and then
- choosing Save. This information can be used to restore the configuration if
- it is lost by choosing Configuration from the Partition menu, and then
- choosing Restore.
-
- If the disk configuration was not saved or the information is not
- available, do the following:
-
- 1. Obtain a copy of EDITREG.EXE, and run it on the server (type EDITREG).
-
- NOTE: EDITREG.EXE can be obtained from Microsoft Product Support.
-
- WARNING! EDITREG.EXE directly modifies data in the configuration
- Registry. It is considered unsupported, and should be used only as a
- last resort. Microsoft cannot guarantee the results of using this tool,
- and Microsoft cannot guarantee that any problems resulting from the use
- of EDITREG can be solved. Use this tool at your own risk.
-
- The following are definitions of EDITREG.EXE commands:
-
- DISKS: reads the information stored in the Registry key
- HKEY_LOCAL_MACHINE->System->DISK.
-
- MAKEFT: writes into the information stored in the Registry key
- HKEY_LOCAL_MACHINE->System->DISK.
-
- 2. At the prompt, type the following and press ENTER:
-
- MAKEFT
-
- 3. Follow the prompts, taking care to conform to the following guidelines:
-
- a. FT Group Numbers start at 0, so if you have a mirror and a stripe
- set, they will be FT Group 0 and 1
-
- b. Disks are numbered starting at disk 0, exactly as they appear in Disk
- Administrator
-
- c. Partitions are numbered starting at 1
-
- d. When all components of that set are entered, hit return on the next
- prompt
-
- e. Verify the information by typing DISKS
-
- f. Quit EDITREG.EXE
-
- 4. Shut down and reboot the computer.
-
- 5. Open Disk Administrator. Make sure the FT set is type Unknown, but will
- be color-coded as the correct FT type
-
- 6. Assign a drive letter
-
- 7. Shutdown and reboot
-
- 8. At this point the drive should be usable again
-
- Additional reference words: 3.10
- KBCategory:
- KBSubCategory: winnt
-
-
- =============================================================================
-
- 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
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- OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
- SO THE FOREGOING LIMITATION MAY NOT APPLY.
-
- Copyright Microsoft Corporation 1993.