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6Jun/114

Dell PowerConnect 5400 Switch config for EqualLogic iSCSI Network

At this current moment we use 2 PowerConnect 5424 switches for our iSCSI backend network.  The PowerConnect 5424 has 24 10/100/1000 BASE-T auto-sensing gigabit Ethernet switching ports and 4 SFP combo ports for fibre connectivity.

The PowerConnect series of switches have many good features some which are irrelevant to what I am talking about so I will leave this out and comment on the features which are important in relation to iSCSI backend networks. Notice I say backend, if this were not a backend network I may be interested in some of the other features such as multiple VLAN capability and iSCSI optimization and QOS. But as this is a backend network I will not require the use of multiple VLANS or iSCSI optimization as I don't see the need to optimise iSCSI on purely iSCSI network.

21Apr/1113

Dell EqualLogic PS Series iSCSI SAN in a Hyper-V Environment

Following on from my Hyper-V Post I thought I would carry on the theme of High Availability and clustered services.  Dell's EqualLogic PS Series iSCSI SAN  optimise's resources by automating volume and network load balancing.  A PS Series Group consists of one or more PS Series Array.  Group Members are connected to an IP network and managed as a single system.

iSCSI Protocol.

iSCSI or internet small computer systems interface to give it its full title, is a block level storage protocol that can be used to create a storage network over Ethernet.  iSCSI uses ethernet as a transport medium for data from servers to storage devices or SAN'S (Storage Area Networks) such as EqualLogic.  iSCSI encapsulates SCSI commands into TCP/IP and sends these commands over standard Ethernet, because of this iSCSI can be sent over LAN's and WAN's and these Arrays do not have to be located in the same room or even the same Galaxy as your servers.

   
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