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The SSD Relapse: Understanding and Choosing the Best SSD
The SSD Relapse: Understanding and Choosing the Best SSD
Date: August 30th, 2009
Topic: Storage
Manufacturer: Various
Author: Anand Lal Shimpi
Buy the OCZ OCZSSD2-1VTX60G Vertex 60GB
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What's Wrong with Samsung?

The largest SSD maker in the world is Samsung. Samsung makes the drives offered by Apple in its entire MacBook/MacBook Pro lineup. Samsung makes the drives you get if you order a Lenovo X300. In fact, if you're buying any major OEM system with an SSD in it, Samsung makes that drive.

It's just too bad that those drives aren’t very good.

This is the 4KB random write performance of Samsung's latest SSD, based on the RBB controller:


4.4MB/s. That's 3x the speed of a VelociRaptor, but 1/3 the speed of a cheaper Indilinx drive.

Speedy, but not earth shattering. Now let's look at performance once every LBA has been written to. This is the worst case scenario performance we've been testing for the past year:


...and now we're down to mechanical hard drive speeds

Holycrapwtfbbq? Terrible.

Now to be fair to Samsung, this isn’t JMicron-terrible performance. It’s just not worth the money performance.

The Samsung RBB based SSDs are rebranded by at least two manufacturers: OCZ and Corsair.

The OCZ Summit and the Corsair P256 both use the Samsung RBB platform.


The Corsair and OCZ Samsung RBB drives.

The drive most OEMs are now shipping is an even older, lower performing Samsung SSD based on an older controller.

I talked to some of the vendors who ship Samsung RBB based SSDs and got some sales data. They simply can’t give these drives away. The Indilinx based drives outsell those based on the Samsung RBB controller by over 40:1. If end users are smart enough to choose Indilinx and Intel, why aren't companies like Apple and Lenovo?

Don't ever opt for the SSD upgrade from any of these OEMs if you've got the option of buying your own Indilinx or Intel drive and swapping it in there. If you don't know how, post in our forums; someone will help you out.

Samsung realized it had an issue with its used-state performance and was actually the first to introduce background garbage collection; official TRIM support will be coming later. Great right? Not exactly.

There’s currently no way for an end user to flash the firmware on any of these Samsung drives. To make matters worse, there’s no way for companies like OCZ or Corsair to upgrade the firmware on these drives either. If you want a new firmware on the drive, it has to go back to Samsung. I can’t even begin to point out how ridiculous this is.

If you’re lucky enough to get one of the Samsung drives with background garbage collection, then the performance drop I talked about above doesn’t really matter. How can you tell? Open up Device Manager, go to your SSD properties, then details, then select Hardware Ids from the dropdown. Your firmware version will be listed at the end of your hardware id string:

Version 1801Q doesn’t support BGC. Version 18C1Q (or later) does.

How can you ensure you get a model with the right firmware revision? Pick a religion and start praying, because that’s the best you can do.

Now the good news. When brand new, the Samsung drives actually boast competitive sequential write, sequential read and random write speeds.

These drives are also highly compatible and very well tested. For all of the major OEMs to use them they have to be. It’s their random write performance that’s most disappointing. TRIM support is coming later this year and it will help keep the drives performing fresh, but even then they are still slower than the Indilinx alternatives.

There’s no wiper tool and there’s currently no method to deploy end-user flashable firmware updates. Even with TRIM coming down the road, the Samsung drives just don’t make sense.

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275 Comments - Last by rree, 33 days ago
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Great article by gigahertz20, 162 days ago
Another great article from Anand, now where can I get my Intel X-25M G2 :)

Reply
meta-artictle by blyndy, 162 days ago
You really got performance anxiety because some high-profile people/sites liked your article and linked to it? It's hardly like it got printed in some prestigious science journal and the publishers are waiting on a follow-up.

It was just the first time that SDD operation had been detailed in plain english from a reputable website.

Enough of this 'anthology' nonsense, I don't care if it's 1 page or 20, just tell me how some of the new SSDs perform (eg OCZ, Western Digital). You've already detailed how they work so now I want to know which ones do/will support TRIM and some details on the controller. Nothing to get anxious about.

Reply
RE: meta-artictle by Jedi2155, 162 days ago
Anandtech has always been known for its in-depth analysis, you're just looking for a simple review list. I much prefer these detailed articles than just hearing the list of performance and simple recommendations that most people can write if provided the proper hardware.

I love how Anand always writes excellent, very well detailed articles that are still SIMPLE to understand. A number of other sites may offer some similar levels of detailed but are sometimes a bit too difficult to comprehend without a background in the same field.

Reply
RE: meta-artictle by Anand Lal Shimpi, 162 days ago
Indeed I did get performance anxiety after the last one, I even got it after the first X25-M. It's not so much the linkage, but the feedback from all of you guys. I received more positive feedback to the last SSD article than any one prior. More than anything I don't want to let you all down and I want to make sure I live up to everyone's expectations.

As far as your interests go, all three manufacturers (Indilinx, Intel and Samsung) have confirmed support for TRIM. When? I'd say all three before December.

Take care,
Anand

Reply
RE: meta-artictle by vol7ron, 162 days ago
Good article.

I have a follow-up question regarding your size suggestion.

In more words you say, "get the size you need," but don't these drives perform that much better in a RAIDed system?

The cost per GB isn't that much more if you're looking at getting a 160GB Intel drive, to get the 2x 80GB instead.

SSDs are more reliable than HDs and you have the benefit of more RAM. 2x 32MB for an SSD in RAID0.


Curious to hear your thoughts,
vol7ron

Reply
RE: meta-artictle by StraightPipe, 161 days ago
Since RAID cards aren't going to support TRIM commands for a while, I'd stick with a large, single SSD.

Anybody ahve any experience running these cards in RAID? I'd love to put some of these in my server, but i'm terrified of lossing data through the complexities of RAID combined with SSD.

I'd love to do a simple RAID1 setup, but it looks like i may be better of waiting too.

In the mean time, these look like a mean machine for an OS disk.

Reply
RE: meta-artictle - Fusion-IO & ioXtreme by cacca, 159 days ago
Dear Anand i really thank you for your SSD articles, the improvements in this area seem tangible.
Can I ask you to test Fusion-IO & ioXtreme, i am really curious to see how this other approach performs.
I know that isn't a perfect apple to apple comparison but at least we could compare the per $ performance.

Best regards

Ca

Reply
RE: Great article by ElderTech, 161 days ago
It's difficult to imagine the amount of time and effort that went into this article, Anand. Just the clean installs of Win7 took a fair amount of extra effort, let alone the other detailed diagrams and testing involved. From an old technology advocate over many years of working to keep pace with Moore's Law in a variety of research environments, your site provides the most satisfying learning experience of all. A sincere thank you!

PS: As for the availability of the G2, it pops in and out of stock at a variety of online retailers, including Newegg, of course, as well as MWave. Both had it available for a short while at $249, Newegg on Friday and MWave today, Monday. However, it's out of stock presently as of midnight, EST 9-1-09 at both, with MWave still at $249 but Newegg going from there to $279 over the weekend and now at an amazing $499! OUCH. Sounds like supply and demand gouging if the price holds when they are next available! There is also some stock available in the distributor channel from small Intel Partners, as I confirmed by calling around the Chicago area. You might give this a try tomorrow. Good luck!

Reply
RE: Great article by jengeek, 159 days ago
RE: Great article by jengeek, 159 days ago
Both are G2, in stock and ship the next day

Both are retail box including the installation kit

Best price I've found

Reply
Comments Page 1 of 28

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