Overland Storage SnapServer Administrator's Manual page 114

SnapServer 7.0 Administrator's Guide
You can use either the SANSurfer Management application that came with the
QLA4010/4050/4052c or Microsoft's iSCSI initiator applet to set initiator parameters and
enter target information. Follow the instructions in the documentation to install and
configure the adapter.
iSCSI Configuration for Linux and Unix
Before implementing iSCSI on Linux or Unix systems, consider the following:
• The QLogic QLA4010/4050/4052c hardware initiator supports Red Hat Enterprise
Linux 3, QU5; Red Hat Enterprise Linux 4, QU1; and SuSE Linux Enterprise Server
9, SP3. This initiator provides CHAP authentication and can connect to multiple
targets simultaneously. The SANSurfer utility is included with the HBA to initiate,
monitor, and change iSCSI targets using its text-based user interface.
• The Cisco-based in-box iSCSI software initiators for Linux support Red Hat
Enterprise Linux 3, QU6, Red Hat Enterprise Linux 4, QU2, and SuSE Linux
Enterprise Server 9, SP3.
• The Open iSCSI-based in-box iSCSI software initiators for Linux support RedHat
Linux 5 QU1 and higher, SuSE Linux Enterprise Server 10, SP1 and higher and
CentOS 5.0 and higher.
• The Open iSCSI-based in-box iSCSI software initiator for Unix supports
Solaris 10 U4.
Installation and configuration information for the QLogic QLA4010/4050/4052c HBA is
included with the adapter and is also available for download from the QLogic website.
Information about the in-box iSCSI intitiators is available from the RedHat, Novell (SuSE
Linux), and Sun Microsystems websites.
To Use CHAP Authentication to Enable Multiple Linux Systems to Share iSCSI Disks
Securely on a SnapServer. You can use CHAP authentication to enable multiple Linux
systems with in-box initiators to share different iSCSI disks on a SnapServer or
SnapServers. To do this, you would set up different user names and passwords for a
Discovery Address.
For example, on a SnapServer (IP address:192.3.2.193), iSCSI disks can be configured for
System A and System B. With CHAP enabled, set the System A User name to a, and set the
Password to PasswordForA. Then, for system B, set the user name b, and set the password
to PasswordForB. The configuration will look like the following:
In System A's
DiscoveryAddress=192.3.2.193
Username=a
Password=PasswordForA
In System B's
DiscoveryAddress=192.3.2.193
Username=b
Password=PasswordForB
System A and B can connect to their own iSCSI disks on the same SnapServer (IP address
192.3.2.193) without the possibility of data corruption caused by sharing the same iSCSI
disk.
iSCSI Configuration for Novell NetWare
Consider the following information before implementing iSCSI on NetWare servers:
10400317-001 10/2011
, enter the following:
/etc/iscsi.conf
, enter the following:
/etc/iscsi.conf
©2010-11 Overland Storage, Inc.
6 – Other Storage Options
6-15