Starting the iscsi initiator – HP 3000 Enterprise Virtual Array User Manual

Page 95

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1.

To configure the OpenVMS initiators for iSNS, copy the file

SYS$COMMON: [SYSMGR] ISCSI$ISNS_SERVICES.TEMPLATE

to

SYS$COMMON: [SYSMGR] ISCSI$ISNS_SERVICES.DAT

The directory SYS$SPECIFIC:[SYSMGR] can be used if the file is to be node-specific rather
than cluster-wide.

2.

Edit the new file and add a list of the IP names or addresses of the iSNS servers that should
be probed for available targets.

The header in this file defines the proper format for these addresses. The iSNS server list is
automatically loaded when the iSCSI Initiator is started. By default, changes to this file do not
take effect until the system is rebooted or until the initiator is stopped and restarted.

3.

To manually force the initiator to recognize additions to the iSNS server list while the initiator
is running, issue the following command:

$ mcr iscsi$control_program isns

iSNS servers that have been added to this file since the initiator was started will be added to the
list of servers that are periodically queried by the initiator. Not that servers that have been removed
from this file will not be removed from the initiator's scan list until the system is rebooted or the
initiator is stopped and restarted.

NOTE:

Regardless whether IP addresses or IP names are used in the iSNS server data file, every iSNS
server listed must be known to TCP/IP. Use the command TCPIP SHOW HOST to determine if
the server is known to TCP/IP. Use the command TCPIP SET HOST to add the server to the
local TCP/IP host database. A server not known to TCP/IP will not be queried by the iSCSI Initiator.

NOTE:

The default TCP/IP port used for iSNS traffic is 3205. This port number cannot be configured.

NOTE:

The OpenVMS Software-Based iSCSI Initiator does not currently support IPv6. All IP addresses
must be IPv4.

Starting the iSCSI Initiator

Starting the iSCSI Initiator

After configuring the hosts and targets, the OpenVMS Software-Based iSCSI Initiator can be started
by executing the DCL command procedure SYS$STARTUP:ISCSI$INITIATOR_STARTUP.COM.
To start the iSCSI Initiator each time the host is booted, add the following line to
SYS$MANAGER:SYSTARTUP_VMS.COM:

$ @SYS$STARTUP:ISCSI$INITIATOR_STARTUP.COM

EVA iSCSI Connectivity User Guide

95

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