Adaptec RAID 2405 SAS / SATA Controller

Packaging & Appearance

Packaging & Appearance
 
With Adaptec products being squarely aimed at professionals and enterprises more than home users and enthusiasts, it's no surprise that  the 2405 controller is presented in a pale blue box with minimalistic appearance. This is quite a refreshing change from some of the overdressed products we often receive, that would more than likely have a camouflage background with fighter jets spelling out the SAS name.
 
Adaptec RAID 2405 Box Front Adaptec RAID 2405 Box Back
 
Adaptec RAID 2405 Box Inside Adaptec RAID 2405 Contents
 
Contained within the box is a 4-way SAS/SATA cable, low profile blanking plate, driver disk, software disk (containing Adaptec's Windows based configuration utility) and a worryingly large printed user manual. The controller card itself is kept separate from the rest of the accessories by means of a moulded clear blister style packet that should ensure safe delivery of the card, even at the hands of the most brutal couriers.
 
Adaptec RAID 2405 SAS Controller Adaptec RAID 2405 SAS Controller
 
Going in for a closer look at the card, we can see that passive cooling is required to keep the 800MHz processor cool during operation. As previously mentioned, the 2405 is a low-profile card and thus the two 64MB memory IC's that make up the cards 128MB of on-board ram have been located on the rear of the PCB to make way for the rest of the components.
 
Adaptec RAID 2405 SAS Controller Front Adaptec RAID 2405 SAS Controller Rear
 
This particular version of the 2405 is fitted with a single SAS connector allowing for the connection of four SAS/SATA devices without the need for any SAS expanders. It is also worth mentioning at this point that the SAS connector interface is far, far more robust than standard SATA and gives a reassuringly sturdy click when the connector is pushed into place.
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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
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