Adaptec RAID 2405 SAS / SATA Controller

Conclusion

Conclusion
 
Adaptec RAID 2405 SASWhile Adaptec were kind enough to furnish us with a pair of Seagate SAS hard drives for use in today's review, it's clear to see that that the only real comparison worth talking about is the difference in performance between using an on-board firmware RAID solution such as Intel's "Matrix" RAID and Adaptec's hardware RAID 2405 card with a common set of SATA hard disks.
 
Starting out with the results from HDTune, the Adaptec 2405 controller had a clear lead giving burst rates over 100MB/s higher than the Intel Matrix RAID array while also using less CPU resources and producing slightly higher sustained average read/write results. However, as we moved on from synthetic benchmarks to real-world applications, the difference in performance was much less pronounced. Both the Dummy File Creation, File Compression, Game Loading and Windows Startup results showed less than a second difference between the Intel and Adaptec arrays, leaving us quite underwhelmed.
 
Despite this, the 100MB/s higher burst rate of the Adaptec card did make us wonder if the Intel "Matrix" RAID controller actually starts becoming a bottleneck once throughput exceeds 200MB/s? If so, could the Adaptec 2405 begin to shine when coupled with a pair of Solid-State drives or any other hard disks that offer much higher performance than the Western Digital Velociraptors used today? We'll be sure to test this theory when we get a chance.
 
Of course, performance isn't the 'be all and end all' of what you should be looking for in a RAID controller, and despite the majority of PC enthusiasts having little interest in anything outside of this area the Adaptec 2405 is packed with many enterprise level features that are well suited to a server environment. For starters there is support for up to 128 SAS/SATA devices through use of expanders, support for all major OS's with the Adaptec Storage Manager suite running on everything from Windows to Solaris and finally the ability to remotely control and BIOS flash the card which comes in very handy indeed if your server is co-located in a data centre.
 
To sum things up, the Adaptec RAID 2405 offers an extensive feature list for a budget RAID card and managed to consistently take the gold in each of our benchmarks. However, even when coupled with the fastest SATA drives on the market, the performance difference between the Adaptec card and Intel's firmware based "Matrix" RAID was negligible, and possibly the only real performance improvements will be had when moving to seriously fast storage solutions such as SSD or 15,000RPM SAS drives.
 
The Adaptec RAID 2405 card can be purchased from www.ebuyer.com for £191.63 (as on 10/11/08).
 
 
The Good
- Burst rates 100MB/s higher than Intel Matrix RAID
- Feature set of a high-end RAID card.
- Support for a wide range of OS's.
- Lower CPU utilisation.
- Support for both SATA and SAS disks.
 
The Mediocre
- Very little real world performance advantage with our chosen disks.
- Card initialisation time is quite slow.
 
The Bad
- Lack of RAID5 support.
 
 
Overclock3D Recommended Award
 
Thanks to both Adaptec and Seagate for making today's review possible. Discuss in our forums.
«Prev 1 2 3 4 5 6 7 Next»

Most Recent Comments

10-11-2008, 07:29:56

JN
"With an 800MHz processor, 128MB of DDR2 and a PCI-E 8x interface, can Adaptec's latest entry-level SAS/SATA RAID controller offer a boost in performance?"

http://www.overclock3d.net/gfx/artic...125605219s.jpg

Adaptec RAID 2405 SAS / SATA Controller

10-11-2008, 11:26:39

Luigi
Nice one Jim!

IT would seem that for a fairly small raid 0 array it is not really worth it...

It would be nice to see a 4 or even 6 disk comparison sometime in the future

10-11-2008, 13:43:29

n0nsense
I wondering ...

Why you don't mention missing RAID 5 (6) as "BAD".

My opinion, it is very bad.

The second thing that was more then surprising is 2 HDD configuration.

Dedicated Hardware RAID controllers may perform on the same level (or even worse) as software assisted with 1 disk attached.

With 4 disks you can get 300+ MBps read write.

Once, during my work in HP IT department i had an opportunity to play with few RAID setups and found that dedicated hardware controllers begin significantly outperform software assisted controllers like onboard controllers on almost any M/B when used in RAID 5 or 10 setups in system under load.

It worse nothing to compare them like you did.

Try to ran on top of your OS DB + Web serving 500+ connections per minute at least + ran some serious CPU intensive task (like C or C++ compilation) and then you'll see what you paid for with Hardware RAID controller.

But the bottom line, It is good to see that this site reviews not only i7 or HD4870 like others do.

Keep doing it

10-11-2008, 14:35:08

JN
Quote:
Originally Posted by name='n0nsense'
I wondering ...

Why you don't mention missing RAID 5 (6) as "BAD".

My opinion, it is very bad.
Quite true, an oversight on my part. Thanks for bringing that up.

Quote:
Originally Posted by name='n0nsense'

The second thing that was more then surprising is 2 HDD configuration.

Dedicated Hardware RAID controllers may perform on the same level (or even worse) as software assisted with 1 disk attached.

With 4 disks you can get 300+ MBps read write.
Unfortunately two hard disks was all that Adaptec provided us with for the review. Not surprising either considering they are close to 200 each.

10-11-2008, 17:02:04

n0nsense



Unfortunately two hard disks was all that Adaptec provided us with for the review. Not surprising either considering they are close to 200 each.





Quite true, SAS or 10k SATA are expensive.

If you still have the adapter, try it with regular (7.2k) SATA drives.

(you don't even have to have same model or size drives)

Make 4 drives RAID 0, sit down, run the test

I guarantee you'll have a little orgasm
Reply
x

Register for the OC3D Newsletter

Subscribing to the OC3D newsletter will keep you up-to-date on the latest technology reviews, competitions and goings-on at Overclock3D. We won't share your email address with ANYONE, and we will only email you with updates on site news, reviews, and competitions and you can unsubscribe easily at any time.

Simply enter your name and email address into the box below and be sure to click on the links in the confirmation emails that will arrive in your e-mail shortly after to complete the registration.

If you run into any problems, just drop us a message on the forums.