HP SureStore E SAN Manager LUN Management Administrator's Guide

186 Registry Values for Customizing SAN Manager LM
Path:
Value Name:
Value Type:
Implicit Default:
Purpose:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\trsanman
DeviceDiscoveryBehavior
REG_DWORD
0
Determines which optimizations, if any, SAN Manager LM components use to discover
device logical units. Depending on third-party software installed, and the configuration
of the system SCSI port driver, some optimizations may prevent SAN Manager LM
from discovering some units. In that case, to successfully discover devices, the
optimizations must be disabled.
Values:
– 0: Normal device scan (quickest; most likely to miss logical units)
– 1: Forces a complete device scan (slow; least likely to miss logical units)
– 2: Disables maximum LUN optimization (some optimization: unlikely to miss logical
units, and not as slow as 1)
Note If other registry settings that are recommended in this manual are made,
the normal (default) mode does not miss devices in most operating
environments. HP does not recommend using behavior 1 or 2 unless you
experience difficulty seeing devices from a host, or are directed to do so
by Technical Support.
Path:
Value Name:
Value Type:
Implicit Default:
Purpose:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\trdisk
SymArrayCompatibility
REG_DWORD
0
To modify the behavior of SAN Manager LM’s TRDISK driver so it gives up control of
FC60 LUNs to the RDAC driver, whereas normally, TRDISK would control all Fibre
Channel disk LUNs. Set this value to 1 to enable SymArray compatibility mode.
Table 6 Registry Values for Customizing SAN Manager LM (cont’d)