Intel SSD 520 Review: Cherryville Brings Reliability to SandForce
by Anand Lal Shimpi on February 6, 2012 11:00 AM ESTFinal Words
I've been a fan of SandForce's technology since it first showed up in OCZ's Vertex 2 Pro in late 2009. Performance has never been an issue with SandForce and because of the fact that the controller writes less than its competitors, the controller and drives based on it are well behaved over months of use. The biggest issue with SandForce has always been a lack of validation compared to other, bigger players like Intel and Samsung. SandForce relies on its partners to do a lot of the validation and testing that would normally be internalized at its competitors. Until now, SandForce hasn't really had a partner large enough to really throw a ton of resources at drive validation. Now that SandForce is under the LSI umbrella things may change, but until then we finally have a well validated SF-2281 drive: the Intel SSD 520.
I'm still curious to see if other bugs crop up but if Intel hasn't found anything else after twelve months of testing I'm willing to bet that either the SF-2281 is irreparably broken or the 520 is going to be a reliable SSD.
I only have one data point where the 520 behaves better than other SF-2281 based drives, but that alone is a perfect example of what you pay for with Intel. This is exactly what we've been waiting for. If you want the absolute fastest SSD on the market today, the Intel SSD 520 is the only drive to get. If you're put off by the price, Samsung's SSD 830 is an excellent alternative.
I'm going to save this next bit for a future article, but have a look at the 520's performance in our enterprise workloads compared to the Intel SSD 320:
| Enterprise SSD Performance | |||||
| Oracle Swingbench | MS SQL DailyUpdates | MS SQL WeeklyMaint | |||
| Intel SSD 320 300GB | 56.5 MB/s | 207.3 MB/s | 230.4 MB/s | ||
| Intel SSD 520 240GB | 67.2 MB/s | 376.7 MB/s | 418.1 MB/s | ||
The 320 is actually widely used in servers as it's very reliable and can last a good amount of time with the right amount of over-provisioning. The 520 just destroys it. The bigger benefit is that if you're dealing with a workload that's not already compressed, the 520 will guarantee you much better drive longevity than the 320 thanks to the fact that it's simply not writing as much data to NAND. If you're looking for an affordable way to get a ton of IOPS for your enterprise workloads, Cherryville may be your ticket...
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Iketh - Monday, February 6, 2012 - link
That price premium is doing me in, plus the irrecoverable drive thrashing. The 240gb Samsung will be my next purchase.Galcobar - Monday, February 6, 2012 - link
Find yourself having to ship a less reliable drive back to the manufacturer and the price premium disappears. At that point, not having to deal with the downtime and inconvenience of reinstallation is all gravy.Shadowmaster625 - Monday, February 6, 2012 - link
These drives are all built to pretty much the same physical quality standards. Firmware might be a different story, but for firmware it usually doesnt require a trip to the factory. Do you have any evidence to suggest that the physical build quality of an OCZ Vertex 2 is less than an Intel X-25?hackztor - Monday, February 6, 2012 - link
I had a vertex 1 that I had to ship back 4 times, finally I asked for a newer model. Got back the vertex 2. That right there is what Galcobar was talking about. Each time shipping is usually 10 bucks and about 2 weeks turn around time. Sometimes higher premium for better tested parts is worth the extra cost.pc_void - Monday, February 6, 2012 - link
The key word is sometimes.And sometimes you pay a higher price and have the same thing happen.
However, you can make an educated guess based upon lots of research. It still doesn't mean it won't happen.
Flunk - Monday, February 6, 2012 - link
I don't think firmware alone is responsible for the much lower failure rates of Intel SSDs over say... OCZ.I'm not saying other brands are bad, my Vertex 2 is still going strong with no issues, but these SSDs are built a little bit better than OCZ's drives and most of the other competition.
coder543 - Tuesday, February 7, 2012 - link
It's widely known that non-Intel SSDs have reliability issues. Recently they've gotten much better, but they still aren't yet comparable.taltamir - Monday, March 26, 2012 - link
The issue is that there are firmware bugs that intel fixed that sandforce and its other partners do not.You are right that there is no need to ship it back to the manufacturer... because they CANNOT fix it. A replacement drive will have the same bugs.
Your only recourse is to live with the bugs and BSODs or sell it second hand and buy an intel.
dmprok - Sunday, April 1, 2012 - link
I got Intel X-25 80Gb drive that failed on me TWICE in one year and I lost data. I picked Intel for TRIM function and because it was highly rated. First drive was purchased for $280 by my friend and it failed on him in 2 weeks, I thought he was doing something wrong, I bought dead drive from him and RMA'ed. It failed again for me in 6 months, one day computer just would not boot, I send it to RMA and got my 3rd drive, I hesitated to install for few months because I lost all faith in Intel SSD drives. I am not a heavy user, I don't run my PC 24/7, also the last drive drive I received does not look like quality made at all, the top of the drive is warped, I am disappointed, considering getting new Sandisk SSD for next upgrade.nsanity - Tuesday, February 7, 2012 - link
Having to ship a drive back means *absolutely nothing*. Hell, having to buy a complete new drive means nothing. The lost productivity when a business who has used a pair of SSD's as a shortcut to IOPS, as the machine BSOD's or drops an array till the system is physically powered off and on again simply dwarfs those costs.I'm a SMB Integrator and having to clean up after the mess of others who have used SF-2281 drives (Corsair Force 3 in particular) to achieve superior IOPS as opposed to using tried and true SAS arrays.
Random BSOD's and array's falling off a system is the plague i've seen with the SF-2281's. Firmware updates have really done nothing to help on the Corsair Drives.
On the Corsair Force 3 release, to enthusiast/gamer customers, I sold 3 drives, only to RA them 5 times within a month.
From that point I essentially told all my enthusiast customers that I would not sell them a Sandforce-based Drive, because I simply do not like unhappy customers, and nothing is more unhappy than someone bringing me a drive back within 48 hours.
I realise my sample size is small (Probably about 20-30 SSD's total), but I can tell you that out of the 15 Intel Drives I've seen/touched/supported (X-25M G2's, 320's and 510's), none of them have had any faults what so ever. Every, single, SF-2281 drive has had faults.
The advent of Intel making Sandforce based drives leaves me with very uneasy. Intel's reliability is second to none, but I need more than just an anecdotal review telling me that they've "fixed" the SF-2281. I've been burned on a small scale, and i've watched a fellow SMB integrator friend lose thousands of dollars in free labour trying to repair systems based on these drives.
I'm looking forward to Anand's part two, using these drives in an Enterprise scenario - and hopefully he's got a machine doing heavy load testing in the mean time to better report on the reliability- or otherwise of these drives.