Hitachi AMS 2100 Hardware Manual page 34

Feature
CHAP
Authentication
iSNS client
Function
Ping
MTU Parameter
1–14
Table 1-4: iSCSI Features (Continued)
Mode
iSCSI User authentication is performed for each target.
iSCSI The iSNS client function enabled to use iSCSI device
discovery, state change notification on the network easily
iSCSI You can ping the network to verify whether the device at
a specified address and the AMS 2100/2300 can
communicate with IP network. This function specifies the
address that Navigator 2 sends the ping from the iSCSI
interface, and then displays a response. However, pinging
an unreachable address might cause a delay and time-
out of the host I/O processing on the controller. A warning
message will be displayed before starting a Ping test.
Hitachi Data Systems strongly recommended that you
ping the network only when no host I/O exists on the
controller.
iSCSI
The AMS2100/AMS2300 with an optional 10 Gbps iSCSI
interface board can select the MTU (Maximum Transfer
Unit) parameter from 1500, 4500, or 9000 bytes.
Selecting a large size for the MTU parameter can improve
the transfer efficiency. To select a large size, set the MTU
parameter for the Ethernet port on the host side or for the
Ethernet Switch that exists in the network at the value
equal to or higher than the value set in the AMS2100/
AMS2300
Introduction
Hitachi AMS 2100/2300 Storage System Hardware Guide
Description
.