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Cisco MDS 9000 Family Configuration Guide
OL-6973-03, Cisco MDS SAN-OS Release 2.x
Chapter 35 Configuring iSCSI
Configuring iSCSI
Initiator Presentation Modes
•
to Fibre Channel, each host can have different zoning or LUN access control on the Fibre Channel
storage device.
• In proxy-initiator mode, there is only one virtual Fibre Channel host per one IPS port and all iSCSI
hosts use that to access Fibre Channel targets. In a scenario where the Fibre Channel storage device
requires explicit LUN access control for every host, the static configuration for each iSCSI initiator
can be overwhelming. In such case, using the proxy-initiator mode simplifies the configuration.
The Cisco MDS switches support the following iSCSI session limits:
• The maximum number of iSCSI sessions on a switch is 5000.
• The maximum number of iSCSI sessions per IPS port in transparent initiator mode is 500.
• The maximum number of iSCSI sessions per IPS port in proxy initiator mode is 250.
• The maximum number of concurrent iSCSI sessions allowed per port is 10.
Note If more than 10 iSCSI sessions try to come up simultaneously on a port, the initiator receives
a temporary error and later retries to create a session.
Transparent Initiator Mode