HP StorageWorks Data Replication Manager HSG80 ACS Version 8.7P Configuration Guide (AA-RPHZF-TE, March 2004)

Configuring a Standard Data Replication Manager Solution

69Data Replication Manager HSG80 ACS Version 8.7P Configuration Guide

Configure Storage at the Target Site

Before you can configure the storage for DRM, you must add disks, create the storagesets, and

create units.

Devices and Storagesets

Before you can configure the storage for remote replication, you must add disks, create

storagesets, and create units. Follow the instructions in the HP StorageWorks HSG80 ACS

Solution Software Version 8.7 Installation and Configuration Guide for your operating system,

but note the restrictions listed in Table 6 of this document.

Note: D0 (D-zero) can no longer be used as a device LUN in SCSI-3 mode.

The target site must have exactly the same storageset configuration, unit configuration, and physical

layout for remote copy sets as the initiator site. Non-RCS LUNs may be different at the two sites.

Create Storage Units

1. Before issuing the following ADD UNIT command, you must already have created the

required storagesets.

Issue the following command to create storage units and to disable all access as the units

are created.

ADD UNIT UnitName StorageSetName DISABLE_ACCESS_PATH=ALL

Note: If you want to use units that were created with a different ADD command, disable all host

access to those units by issuing the following command:

SET UnitName DISABLE_ACCESS_PATH=ALL

For OpenVMS, set device ID on all units with the following command:

SET UNIT IDENTIFIER = value

Example: set d1 id = 1

This becomes the VMS device ID for DGA1.

Issue this command for each unit. After all units have been created, execute the following

procedure.

T 2. Set the maximum cached transfer size to 128:

SET UnitName MAXIMUM_CACHED_TRANSFER_SIZE = 128

Repeat this step for each unit.

Note: We set the maximum cached transfer size to 128 to maximize throughput of

initiator-to-target normalization. If a typical application write I/O is larger than 64 kilobytes,

then increase MAXIMUM_CACHED_TRANSFER appropriately. See the

HP StorageWorks

HSG80 Array Controller Version 8.7 CLI Reference Guide