IT Pro is supported by its audience. When you purchase through links on our site, we may earn an affiliate commission. Learn more

Fujitsu Eternus CS800 S3 Entry review

An affordable data deduplication unit for SMBs. Our testing showed the Eternus CS800 S3 can help make businesses make big storage savings.

Deduplication test results

Fujitsu doesn't publish any hard facts about potential data reduction ratios so we used the Binary Testing deduplication test suite to ascertain these for file server backup operations. Using a 4GB data set of 1,000 files, the suite allowed us to introduce controlled changes within a desired percentage of the files.

At the host end we loaded up CA's ARCserve r16 backup software. To use the CS800 all we needed to do was map a share on the ARCserve server and declare it as a disk based backup device.

We used ARCserve to manage a standard backup strategy consisting of daily incrementals and weekly full backups. After the first full backup had run, we modified 2 percent of data in 40 percent of files prior to each subsequent backup.

After a four week simulation period we saw the appliance deliver a very impressive deduplication ratio of over 10.5:1. During the test, we had thrown over 44GB at the appliance but only 4.4GB of its capacity had actually been consumed. This is comparatively high as when we tested Falconstor's FDS SA101 we saw a lower data reduction ratio of 8.9:1 with exactly the same test.

Fujitsu CS800 - RAID array throughput

You can keep an eye on RAID array throughput and reclaim space when shares are deleted

Backup performance

We also tested real world backup speeds by using ARCserve to secure a 35GB test folder containing nearly 17,000 files. Run over Gigabit Ethernet, the job returned an average speed of 45MB/sec.

We've heard claims that deduplication can cause performance problems when restoring data from the block store but we didn't see any evidence of this. Using ARCserve to restore the entire test folder from the appliance back to the server returned average speeds of 38MB/sec.

An important feature to check out when considering value for a deduplication device is the raw capacity of its data repository. In this area, the Eternus CS800 S3 Entry scores over a lot of the competition as it offers a much larger repository for a similar price.

Featured Resources

Big data for finance

How to leverage big data analytics and AI in the finance sector

Free Download

Ten critical factors for cloud analytics success

Cloud-native, intelligent, and automated data management strategies to accelerate time to value and ROI

Free Download

Remove barriers and reconnect with your customers

The $260 billion dollar friction problem businesses don't know they have

Free Download

The future of work is already here. Now’s the time to secure it.

Robust security to protect and enable your business

Free Download

Recommended

Fujitsu to reportedly sell scanner business to Ricoh for $625 million
mergers and acquisitions

Fujitsu to reportedly sell scanner business to Ricoh for $625 million

26 Apr 2022
Japan pursues green data centres to achieve carbon-neutral society
data centres

Japan pursues green data centres to achieve carbon-neutral society

25 Feb 2022
The IT Pro Products of the Year 2021: The year’s best hardware and software
Hardware

The IT Pro Products of the Year 2021: The year’s best hardware and software

31 Dec 2021
Vodafone sues UK government after missing out on £184m Foreign Office contract
public sector

Vodafone sues UK government after missing out on £184m Foreign Office contract

22 Oct 2021

Most Popular

How to secure your hybrid workforce
Advertisement Feature

How to secure your hybrid workforce

23 Sep 2022
Why collaboration is key to digital transformation
Sponsored

Why collaboration is key to digital transformation

13 Sep 2022
What your hybrid workforce needs from their laptops
Advertisement Feature

What your hybrid workforce needs from their laptops

21 Sep 2022