Dell EqualLogic PS4000 Hardware Maintenance

Also see for EqualLogic PS4000: Configuration guide Hardware Quick reference guide Instructions Installation and setup manual

Contents

Dell EqualLogic PS4000 Hardware Maintenance Manual pdf 30 page image

PS4000 Hardware Maintenance Maintaining Control Modules3–6Connecting Network CablesA PS4000 array must have at least one active network connection. Multiplenetwork connections are recommended for performance and availability.No STP functionalityon switch ports thatconnect end nodesIf possible, do not use Spanning-Tree (STP) on switch ports thatconnect end nodes (iSCSI initiators or storage array networkinterfaces).However, if you must use STP or RSTP (preferable to STP),you should enable the port settings (available on someswitches) that let the port immediately transition into STPforwarding state upon link up. This functionality can reducenetwork interruptions that occur when devices restart, andshould only be enabled on switch ports that connect end nodes.You can use Spanning-Tree for a single-cable connectionbetween switches, or trunking for multi-cable connectionsbetween switches.Flow Control enabledon switches and NICsEnable Flow Control on each switch port and NIC that handlesiSCSI traffic. PS Series arrays will correctly respond to FlowControl.Unicast storm controldisabled on switchesDisable unicast storm control on each switch that handles iSCSItraffic, if the switch provides this feature. However, the use ofbroadcast and multicast storm control is encouraged onswitches.Jumbo Frames enabled Enable Jumbo Frames on each switch and NIC that handlesiSCSI traffic.VLANs Configure switches to use VLANs to separate iSCSI SANtraffic from other network traffic.Table 3-3: Network Recommendations (Continued)Recommendation Description