The Samsung SSD 830 Review
by Anand Lal Shimpi on September 24, 2011 1:02 AM EST- Posted in
- SSDs
- Storage
- Samsung
- pm830
- Samsung SSD 830
Final Words
The Samsung SSD 830 isn't the fastest drive we've tested, but it generally produces results in the upper echelon of high-end SSDs. If Samsung is able to at least match the current pricing of the SSD 470 and continue its excellent track record in drive reliability, I can see the 830 being a fine recommendation for pretty much any desktop user. The power consumption numbers are a bit troubling but as I alluded to earlier, we are testing a ridiculously high capacity unit - it remains to be seen how smaller capacity drives fare in the power charts.
It's amazing to see Samsung come so far in the enthusiast space. From a drive that I simply wouldn't recommend to building a downright competitive solution backed by a near flawless track record. What I'm even more excited about with this drive is the fact that it will likely find its way into a number of high end OEM systems over the next year. Although I'm glad that more manufacturers are offering SSDs with their systems, I'm often disappointed by their controller selection. If the PM830 is included in the option pool for the next round of design wins however, I'll be much more comfortable recommending that users tick the vendor-supplied SSD option (*cough* Apple).
I've had the SSD 830 for less than a week and in my limited testing it does seem to do very well. I'll be hammering on it for the weeks and hopefully months to come but as I've already mentioned, Samsung's reputation for reliability rivals that of Intel. Despite the praise though I do wish Samsung would more significantly address one of its long standing issues. I honestly believe Intel has the right idea of performing as much garbage collection in real time as possible. Very few (if any) desktop workloads require > 100MB/s of small file random writes, I would gladly trade some performance there for higher numbers in a fragmented state. Idle time garbage collection just seems like an ineffecient way to do things, you end up dealing with very high write amplification and potentially harm the overall user experience when you're not idle as a result.
In the end I welcome the 830 as another high-speed option in the 6Gbps space. We have a number of great performers to choose from, but what matters most today is reliability and solid validation testing. The Samsung SSD 830 may be able to join Intel's SSD 510 in delivering both of those without sacrificing performance.
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ruzveh - Wednesday, September 28, 2011 - link
hey anand, where are the other tests dude? Where is the boot time test, application open time, app loading time, etc.???abufrejoval - Wednesday, September 28, 2011 - link
This gap between ZEUS and FusionIO, SLC and embedded SAN SSDs on one end and those consumer SSDs on the other end has been narrowing, but it's incredible to see just how much vendors from all over the place fight to keep it from closing.I got enterprise workloads, which aren't all that high, very predictible, with highs and lows in line with typical OLTP front-end shopping patterns as well as some end-of-day processing.
The crux is the need for ultra high availability (or extremely short outages) and KISS answers that better than investing into premium SANs.
I want directly attached SSDs there, preferably in 2.5" form factor and in RAIDs for better capacity management and non-stop replacements.
20,ooo IOPS should do just fine, the real key is reliability and easy non-stop management. Daily overwrite is well below capacity so consumer SSDs should be fine. And I wouldn't mind replacing them after two years, if they'll reliably advise me of their imminent death weeks ahead.
I tried being clever and put Crucial m3 and OCZ Vertex 2 in a mirror set with an SSD aware LSI SAS RAID controller, to offset the risk of immature firmware/controller issues (the original plan was to use a SAN/SSD mirror, but resilvering would be too expensive). That didn't work out too well, because of these garbage collection issues (m3 drives were failed by the RAID controller, just because they took a little longer than their OCZ counterparts).
Of course we used synthetic tests first, "fio" to be exact and that just keeps those drives busy, busy, busy, quite beyond what actual workloads are likely to be. And in those cases the difference in garbage collection strategy caused real clashes, because the Crucial m3 took a finally took a long break when it had exhausted it's free space, while the OCZ stayed ready always, doing garbage collection on each and every write.
In real life, we might never see that problem, because actual IOPS during early mornings (after the day-end processing) might drop below the "magic" threshold" which allows those Crucials to do their garbage collection, but who knows what would happing during Christmas shopping season, when those unknown thresholds might just be exceeded a wee bit...
SSDs are not magnetic hard disks: They contain operating systems that need to be tuned just like your typical Oracle database. What's missing is interfaces which allow to read and set these well defined and published parameters in line with the use case you requrie.
In purely technological terms that should be easy enough. But every vendor, from database, via OS and SSD will want his cut for this reliability and speed, which is why this may not happen for another couple of years.
If only Samsung could make this strategy decision (early or late garbage collection) a user defined setting without price differentiation (enterprise vs. consumer) I'd be so happy!
Why do I think it won't happen?
gixxer - Monday, October 10, 2011 - link
Does anyone have a more concrete release date than "october"? I am starting a new build and if this gets released soo, it will definitly be a contender.DanSmith - Tuesday, December 6, 2011 - link
Hi Anand / All,Wonder if you if could shed any light on this drive supporting AES encryption using the "ATA password" BIOS options. Its been months now and this drive is on the market and there is sooo much conflicting info on the web about this drive supporting AES.
Even samsung themselves can give me a straight answer!!
Anyone who has one of these that can shed any light??
Cheers, Daniel
valhar2000 - Monday, December 26, 2011 - link
What's a TRIM pass? Do you have to run some sort of procedure every now and then to apply TRIM to an SSD? Isn't TRIM supposed to work in real time as files are deleted or moved?kazumoda - Wednesday, February 8, 2012 - link
I've been searching for a place to buy this Samsung PM830 but all I can find is the AM830. Can someone tell me if this is essentially the same thing or is it a vastly different product in terms of performance and reliability? Thanks. Is there any update on the performance of a smaller drive, in particular how does the 256gb version fare in terms of performance to the 512?datalaforge - Monday, February 27, 2012 - link
I recently installed one of these into my 2.26GHZ Unibody MBP. Its great with its 10 second boots and so on. The battery life is not great though. I think that it was better before. Is there anything that can be done?BRKHD1 - Sunday, September 30, 2012 - link
great review I love your site! I recently did a speed test of the samsung 830 on my youtube channel you can check it out here https://www.youtube.com/watch?v=gZJ-pPeE5lA Thanks again!BRKHD1 - Wednesday, November 28, 2012 - link
http://www.youtube.com/watch?v=gZJ-pPeE5lA&fea...