HP SureStore E SAN Manager LUN Management Administrator's Guide

178 SCSI Filter Drivers

SCSI Filter Drivers

SAN Manager LM is not compatible with a class of drivers called SCSI filters unless SCSI

filter compatibility mode is enabled.

• Windows NT hosts operating in SCSI filter compatibility mode are subject to the

following target and LUN limitations of the system SCSIPORT driver: 32 targets (0-31)

per bus, 8 LUNs (0-7) per target.

Note This limitation varies depending on the installed Service Pack version and the

registry setting for LargeLuns (page 181).

• This mode may cause more scanning of storage (SCSIPORT scans as well as SAN

Manager LM).

Set the SCSIFilterCompatibility registry value to enable SCSI filter compatibility mode. For

more information about SCSIFilterCompatibility, see Table 6.

Caution Editing the registry incorrectly may cause serious problems that will require

you to reinstall Windows NT. For more information about editing the registry,

see your Microsoft documentation.

Table 3 SCSI Filter Compatibility Registry Setting

Path:

Value Name:

Value Type:

Value:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\trlls

ScsiFilterCompatibility

REG_DWORD