HP StorageWorks HSG80 ACS Solution Software V8.8 for Novell NetWare Installation and Configuration Guide (AA-RV1MA-TE, March 2005)

Planning a Subsystem

55HSG80 ACS Solution Software V8.8 for Novell NetWare Installation and Configuration Guide

multiple-bus failover to work. For most operating systems, it is desirable to have

all connections to the host enabled. To enable all connections for host BLUE,

enter the following commands:

SET D101 DISABLE_ACCESS_PATH=ALL

SET D101 ENABLE_ACCESS_PATH=BLUE1A1,BLUE1B1,BLUE2A2,BLUE2B2

To enable only two connections for host BLUE (if it is a restriction of the

operating system), select two connections that use different adapters, different

switches or hubs, and different controllers:

SET D101 DISABLE_ACCESS_PATH=ALL

SET D101 ENABLE_ACCESS_PATH=(BLUE1A1, BLUE2B2)

SET D101 DISABLE_ACCESS_PATH=ALL

SET D101 ENABLE_ACCESS_PATH=(BLUE1B1, BLUE2A2)

If the storage subsystem has more than one host connection, the access path must

be specified carefully to avoid giving undesirable host connections access to the

unit. The default condition for a unit is that access paths to all host connections are

enabled. To restrict host access to a set of host connections, specify

DISABLE_ACCESS_PATH=ALL when the unit is added, then use the

SET unit

command to specify the set of host connections that are to have access to the unit.

Enabling the access path to a particular host connection does not override

previously enabled access paths. All access paths previously enabled are still

valid; the new host connection is simply added to the list of connections that can

access the unit.

Note: The procedure of restricting access by enabling all access paths then disabling

selected paths is not recommended because of the potential data/security breach that

occurs when a new host connection is added.

Restricting Host Access by Offsets

Offsets establish the start of the range of units that a host connection can access.

However, depending on the operating system, hosts that have lower offsets may

be able to access the units in the specified range.

Note: All host connections to the same host computer must be set to the same offset.