Dell S4048T, Configuration Manual

Page: 547 / 1277

Configuring Detection and Ports for Dell
Compellent Arrays
To configure a port connected to a Dell Compellent storage array, use the following command.
• Configure a port connected to a Dell Compellent storage array.
INTERFACE Configuration mode
iscsi profile-compellent
The command configures a port for the best iSCSI traffic conditions.
The following message displays the first time you use the
iscsi profile-compellent
command to
configure a port connected to a Dell Compellent storage array and describes the configuration changes that
are automatically performed:
%STKUNIT0-M:CP %IFMGR-5-IFM_ISCSI_AUTO_CONFIG: This switch is being configured for
optimal
conditions to support iSCSI traffic which will cause some automatic configuration
to occur
including jumbo frames and flow-control on all ports; no storm control and
spanning-tree port
fast to be enabled on the port of detection.
After you execute the
iscsi profile-compellent
command, the following actions occur:
• Jumbo frame size is set to the maximum for all interfaces on all ports and port-channels, if it is not
already enabled.
• Spanning-tree portfast is enabled on the interface.
• Unicast storm control is disabled on the interface.
Enter the
iscsi profile-compellent
command in INTERFACE Configuration mode; for example:
Dell(conf-if-te-o/50# iscsi profile-compellent
Synchronizing iSCSI Sessions Learned on VLT-
Lags with VLT-Peer
The following behavior occurs during synchronization of iSCSI sessions.
• If the iSCSI login request packet is received on a port belonging to a VLT lag, the information is synced
to the VLT peer and the connection is associated with this interface.
• Additional updates to connections (including aging updates) that are learnt on VLT lag members are
synced to the peer.
• When receiving an iSCSI login request on a non-VLT interface followed by a response from a VLT
interface, the session is not synced since it is initially learnt on a non-VLT interface through the request
packet.
• The peer generates a new connection log that sees the login response packet. If the login response
packet uses the ICL path, it is seen by both the peers, which in turn generate logs for this connection.
iSCSI Optimization 547