Dell Shared PowerEdge RAID Controller (PERC) 8 For Dell PowerEdge VRTX Systems User’s Guide

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Multipath setup in Windows

Multipath (MPIO) Settings—Dell recommends the following registry settings when configuring MPIO:

MPIO Timer	Value
HKLM\System\CurrentControlSet\Services\DISK\TimeOutValue	30
HKLM\system\CurrentControlSet\Services\MPIO\Parameters\PathVerifyEnabled	0
HKLM\system\CurrentControlSet\Services\MPIO\Parameters\PDORemovePeriod	60
HKLM\system\CurrentControlSet\Services\MPIO\Parameters\UseCustomPathRecoveryInterval	1
HKLM\system\CurrentControlSet\Services\MPIO\Parameters\PathRecoveryInterval	25

CAUTION: Always back up your registry files (system.dat and user.dat) before editing the registry.

CAUTION: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall Windows. Dell cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information on how to edit the registry, see the Changing Keys And Values online help topic in Registry Editor (regedit.exe).