Hardware manual

Group Administration Common group tasks

2–2

Configuring CHAP for initiator authentication

You can use Challenge Handshake Authentication Protocol (CHAP) for iSCSI authentication to manage access

controls more efficiently. Using a challenge-response mechanism, CHAP restricts target access through user names

and passwords instead of unique IP addresses or iSCSI initiator names. You can use CHAP to authenticate iSCSI

initiators by specifying a CHAP user name in an access control record. To meet this condition, a computer must

supply the user name and its password (or “secret”) in the initiator configuration interface when logging in to the

target.

See Chapter 8, iSCSI tar

et security.

Configuring SNMP access to the group

You can use Simple Network Management Protocol (SNMP) for read-only group access. In addition, some

monitoring tools (such as SAN HeadQuarters) and the Manual Transfer Utility require SNMP access to the group.

See Displaying and configuring SNMP access to a Group on

page 4-11.

Setting group-wide volume defaults

When you create a volume (or enable thin-provisioning for a volume), the group applies default values to volume

settings that control snapshot space, snapshot behavior, thin provisioning space, and iSCSI alias naming.

You can change the default values to meet the needs of your environment.

See Displaying group-wide default volume settings on

page 9

-5.

Setting the RAID policy for a member

To use the storage in a group member, you must set the member RAID policy.

See Setting the RAID policy and pool for a new member on pa

ge 6-6.

Configuring member network interfaces

After you add a member to a group, the member has one configured network interface, typically Ethernet 0. For

best performance and availability, Dell recommends that you configure all the network interfaces that are eligible

for iSCSI traffic.

For network configuration requirements and recommendations, see the Hard

ware Maintenance manual for your

array model.

To configure member network interfaces, see Configuring network interfaces on page 6

-9.