Adaptec 5325302057 User Guide - Page 179

iSCSI Configuration for VMware Using CHAP Authentication to Enable Multiple Linux Systems to Share Logical Devices on a Snap Server Note The instructions in this section are for users using ISNS. You can use CHAP authentication to enable multiple Linux systems with in-box initiators to share different logical devices on the iSCSI Storage Appliance. To do this, you would set up different Usernames and Passwords for a DiscoveryAddress, as described in Step 6 of "Setting up an In-box iSCSI Initiator" on page 169. For example, on an iSCSI Storage Appliance (IP address:192.3.2.193), logical devices can be configured for System A and System B. With CHAP enabled, set the System A Username to a, and set the Password to PasswordForA. Then, for system B, set the Username b, and set the Password to PasswordForB. The configuration will look like the following: In System A's /etc/iscsi.conf, enter: DiscoveryAddress=192.3.2.193 Username=a Password=PasswordForA In System B's /etc/iscsi.conf, enter: DiscoveryAddress=192.3.2.193 Username=b Password=PasswordForB System A and B can connect to their own logical devices on the same iSCSI Storage Appliance (IP address 192.3.2.193) without the possibility of data corruption caused by sharing the same logical device. iSCSI Configuration for VMware This section provides information on the setup and configuration of the VMware ESX Server v3.0 and above iSCSI initiator. For more information regarding installation and configuration of required VMware components, refer to the documentation included with the VMware ESX Server installation. Configuration Notes • When you install VMware ESX Server, the iSCSI Initiator is automatically installed. • On connecting to the logical devices on the iSCSI Storage Appliance, the VMware initiator will find all logical devices and automatically log into them. If logical devices are shared across multiple systems, you can use CHAP authentication to Appendix A Configuring iSCSI Initiators 173