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17Nov/110

Dell EqualLogic Replication between PS Series Groups – Introduction

Now that our new PS6000 is initialized and ready to go, we started to look at replication and what we wanted to achieve in terms of backup/recovery and failover/failback. The idea was to replicate our Hyper-V virtual Machines to this second PS Series group and also all our users data.  The Second PS Series group will be onsite but at the furthest most point away from our primary PS Series group in a seperate building.  We also needed to look at our SAN Network topology and how we needed to extend this to give us the High Availability and bandwidth we required.

EqualLogic comes with SAN based replication built into the inclusive licensing model and with tools such as SANHQ and Dell's Manual Transfer Utility or MTU for short configuring replication is once again a nice and easy process.

Firsty lets take a quick look at what EqualLogic replication is and what it involves.

21Jul/110

Dell EqualLogic PS Series Array Firmware Update Using Group Manager GUI

Now that our new Dell EqualLogic PS6000 is racked, networked, initialized and configured it’s time to bring the firmware version up-to-date. Currently the newest firmware version is V5.0.7 and can be downloaded from EqualLogic Support.
Updating the firmware is a fairly simple task, a PS Series Array has dual controllers each with a micro SD card inserted on the underside of the controller (the opposite side to the fan) this is where the firmware runs from.

Most of the time you can update directly to the latest firmware version, it maybe that you need to update to an interim version before updating to the latest version, it really depends on how far behind you are. Always read the firmware release notes.

20Jul/112

Initializing a Dell EqualLogic PS6000 Series Array

This morning we have just taken delivery of our third EqualLogic PS Series array. A PS6000 with 32TB of storage, this new addition to our SAN infrastructure is going to be a replication partner to our existing EqualLogic group. I am going to be blogging about this replication project as I get going with it but firstly thought I would take the opportunity go through deploying a PS Array step by step straight out of the box and creating a new group.

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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