Dell PS-M4110, Руководство владельца оборудования

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Network Recommendations
Provide Redundant Network Paths Between Hosts and Arrays
Use a multipathing solution to make sure that no single point of failure exists between hosts and arrays.
Dell recommends using the Dell EqualLogic Host Integration Tools (HIT) solution, available for Microsoft,
VMware and Linux platforms.
Provide Adequately-Sized Reliable Network Link (for replication)
When replicating with groups outside of the M1000e chassis, for effective and predictable replication, make
sure that the network link between the primary and secondary groups is reliable and provides sufficient band-
width for copying the required amount of data within the required time.
Disable STP Functionality on Switch Ports that Connect End Nodes
If possible, do not use Spanning-Tree Protocol (STP) on switch ports that connect directly to iSCSI end
nodes (iSCSI initiators or array network interfaces).
However, if you must use STP or RSTP (preferable to STP), you should enable the port settings (available
on some switches) that let the port transition faster into STP forwarding state upon link-up (i.e. portfast).
This functionality can reduce network interruptions that occur when devices restart, and it should only be ena-
bled on switch ports that connect end nodes.
Some iSCSI BOOT Initiators may not startup reliably when STP is enabled, due to the convergence time.
For further information, refer to the associated specifications for your NIC and Switch.
You can use Spanning-Tree for a single-cable connection between switches, and you can use Link Aggre-
gation Groups (LAG) (or port-channels) for multi-cable connections between switches.
Enable Flow Control on Switches and NICs
Enable Flow Control on each switch port and NIC that handles iSCSI traffic. PS Series arrays will respond
correctly to Flow Control.
Disable Unicast Storm Control on Switches
Disable unicast storm control on each switch that handles iSCSI traffic if the switch provides this feature.
However, the use of broadcast and multicast storm control is encouraged on switches.
Enable Jumbo Frames
Enable Jumbo Frames on each switch and each NIC that handles iSCSI traffic.
PS series arrays support Jumbo Frames, which is enabled by default (MTU 9000). Enable Jumbo Frames on
each switch and iSCSI initiator (NIC) to take advantage of this feature. For further information, refer to the
associated documentation for your switch and NIC.
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Dell EqualLogic PS-M4110 Hardware Owner's Manual Network Recommendations