EMC Retrospect 7.5 for Windows

EMC Retrospect 7.5 for Windows is EMC's Disk to Disk to Tape (D2D2T) solution for the small and mid market. The advent of cheap storage and the need for backup has meant a huge explosion in the D2D2T market.

The problem is that most solutions are based around storage appliances. Companies don't want to be buying more appliances when they often have storage that they can reuse. Retrospect is a software solution that allows you to use your existing storage more efficiently.

Retrospect 7.5 comes in four different versions. These determine what comes as standard and what is an optional add-on. The main package we will look at is the Windows Business Edition. There is also Retrospect for Windows Professional, Retrospect Express and Retrospect for Macintosh versions.

What's in the box

Like most software solutions the box consists of media with the application and manuals. What it doesn't come with are the various add-ons for the product. Before you even begin to unpack the box, you need to go to the product page on the EMC website or ask your local dealer for the product grid and pricing.

Installation and setup

The hardware requirements are quite low but if you want to be able to manage multiple backups at the same time you will need to allow sufficient memory. For every two backup streams you will need 512MB of RAM.

Installation itself is a simple, wizard-based process. What was annoying was the need to restart the server at the end of the process. One of the key things that Microsoft has been urging software vendors to do is reduce the number of restarts and as the application doesn't need to be bound to the kernel, there seemed to be no reason to require a restart.

Configuration is simple enough. As long as you can see the device and copy files to it, you can use it. This makes life very simple. You can plug in a USB drive, point to a CD/DVD recorder or attach to a network share. It really is that simple.

You can also configure Retrospect to allow users to restore their own files. This means installing IIS on a server but then makes the backup catalogs searchable by the users to locate the files they need. However, it only works where the backup is stored on a disk rather than on a tape.

From box to starting the first backup took a little under 10 minutes and that including waiting for the server to reboot.

Legacy support

One of the refreshing things about Retrospect is that EMC still recognises that there are people out there with older versions of operating systems. Retrospect supports any Microsoft server from Windows NT 4.0 onwards and clients from Windows 98. While Microsoft may have chosen to stop supporting some of these operating systems, smaller organisations are still heavily dependent upon them. This gives them a solid backup operation as they look to manage those older computers.

Retrospect is clever in the way it does its backups. Once you have created your first backup it won't backup the same file to the backup set if it hasn't changed. This reduces the backup window massively after the first pass. Until you get used to how simple and fast this is you may find yourself unsure if it has worked.

This solves two huge backup problems for modern organisations. Incremental backups are the most common way of backing up data. A full backup is followed by a series of backups containing just the changes. The problem comes if you need to do a complete restore. A restore requires you to first put back the complete backup and then each incremental backup in the order they were created. With Retrospect, you just restore the backup as it has all the changes integrated into it.

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