Owner's Manual

iSCSI Cluster Setup for EqualLogic Storage Systems 47
Create volumes in the Dell EqualLogic array and create access list to allow all
host iSCSI network interfaces to access the volumes. For example, the
following volumes are created:
• mdi-ocr-css-spfile
• mdi-data1
• mdi-data2
• mdi-fra1
Configuring the iSCSI Networks
It is recommended that you configure the host network interfaces for iSCSI
traffic to use Flow Control and Jumbo Frame for optimal performance.
Use the ethtool utility to configure Flow Control.
Use the following command to check for Flow Control (RX/TX Pause) on
the interfaces: # ethtool -a <interface>
For example:
# ethtool -a eth2
Pause parameters for eth2:
Autonegotiate: on
RX: on
TX: on
This example shows that Flow Control is already turned on. If it is not turned
on, use the following command to turn on Flow Control:
# ethtool -A <interface> rx on tx on
Jumbo Frame is configured in the /etc/sysconfig/network-scripts/ifcfg-
<interface> scripts, by adding the MTU="<mtu-value>" parameter.
Third Area
Volume(s)
Minimum
twice the
size of your
second area
volume(s)
5 One Flash Recovery
Area
ASM disk group
FLASHBACKDG
Table 6-1. Volumes for Oracle RAC Configuration (continued)
Volume Minimum
Size
RAID Number of
Partitions
Used For Operating System
Mapping