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How to manually remove VERITAS Dynamic Multipathing DMP ASL (tm) from VERITAS Storage Foundation (tm) for WindowsSolution
In the event that an installation or an uninstallation of
Dynamic Multipathing (DMP) fails to complete, it may be necessary to manually
remove the DMP ASL components.
To manually remove VxDMP ASL,
perform the following steps:
Warning:
Incorrect use of the Windows registry editor may prevent the operating system
from functioning properly. Great care should be taken when making changes to a
Windows registry. Registry modifications should only be carried-out by persons
experienced in the use of the registry editor application. It is recommended
that a complete backup of the registry and workstation be made prior to making
any registry changes.
1. From the Windows Registry,
disable vxdmp.sys by setting the start value under
HKLM\System\CurrentControlSet\Services\vxdmp to "4"
2. Search for "vxdmp" under
HKLM\System\CurrentControlSet\Control\Class. There should be two
occurrences, both as "UpperFilters" for DiskDrive class and SCSIAdapter class.
Carefully remove the line containing vxdmp in the value part of UpperFilters
entry. The other entries if any should be left. If no entries are left, delete
the UpperFilter value entry itself. The exact locations in the registry
are:
HKLM\SYSTEM\CurrentControlSet\Control\Class\{4D36E967-E325-11CE-BFC1-08002BE10318}
and
HKLM\SYSTEM\CurrentControlSet\Control\Class\{4D36E97B-E325-11CE-BFC1-08002BE10318}
3. Delete only DMP ASL related
registry entries from the following registry locations:
HKLM\System\CurrentControlSet\ENUM\ROOT\LEGACY_VXDMPXX
(where XX is the name of vendor)
HKLM\System\CurrentControlSet\Services\relative
to DMP ASLs (If they exist.)
Note: You may have to set the
permissions on these keys to full control. Use regedit for Windows 2003 and
regedt32 for Windows 2000.
4. Reboot
NOTE: For Storage Foundation
4.3, or later, skip to Step 6.
5. To properly remove
vxdmp.sys (core DMP driver) instance from the system, run
instpnp u root\vxdmp after the system
has rebooted
6. Examine Enum\root and
services branch to make sure the removal was successful
DMP is now removed from the system.
Terms of use for this information are found in Legal Notices.
