Micron P420m SSD Review: 1.4 TB Of PCI Express-Attached Storage
After the success of its P320h, Micron is following up with the P420m, an MLC-based PCI Express x8 add-in card aimed at more read-oriented enterprise customers. How does it compare to the company's SLC-based flagship? We benchmark ours thoroughly.
Test Setup, Benchmarks, And Methodology
| Test Hardware | |
|---|---|
| Processor | Intel Core i7-3960X (Sandy Bridge-E), 32 nm, 3.3 GHz, LGA 2011, 15 MB Shared L3, Turbo Boost Enabled |
| Motherboard | Intel DX79SI, X79 Express |
| Memory | G.Skill Ripjaws Z-Series (4 x 4 GB) DDR3-1600 @ DDR3-1600, 1.5 V |
| System Drive | Intel SSD 320 160 GB SATA 3Gb/s |
| Tested Drives | Micron P420m 1400 GB |
| Graphics | AMD FirePro V4800 1 GB |
| Power Supply | OCZ ModXStream Pro 700 W |
| System Software and Drivers | |
| Operating System | Windows 7 x64 Ultimate |
| DirectX | DirectX 11 |
| Driver | Graphics: ATI 8.883 |
| Benchmark Suite | |
| Iometer v1.1.0 | 4 Workers, 4 KB Random: LBA=Full, Span Varying Queue Depths |
| ATTO | v2.4.7, 2 GB, QD=4 |
| Custom | C++, 8 MB Sequential, QD=4 |
| Enterprise Testing: Iometer Workloads | Read | Write | 512 Bytes | 1 KB | 2 KB | 4 KB | 8 KB | 16 KB | 32 KB | 64 KB | 128 KB | 512 KB |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Database | 67% | 100% | n/a | n/a | n/a | n/a | 100% | n/a | n/a | n/a | n/a | n/a |
| File Server | 80% | 100% | 10% | 5% | 5% | 60% | 2% | 4% | 4% | 10% | n/a | n/a |
| Web Server | 100% | 100% | 22% | 15% | 8% | 23% | 15% | 2% | 6% | 7% | 1% | 1% |
The Storage Networking Industry Association (SNIA), a working group made up of SSD, flash, and controller vendors, has a testing procedure that attempts to control as many of the variables inherent to SSDs as possible. SNIA’s Solid State Storage Performance Test Specification (SSS PTS) is a great resource for enterprise SSD testing. The procedure does not define what tests should be run, but rather the way in which they are run. This workflow is broken down into four parts:
- Purge: Purging puts the drive at a known starting point. For SSDs, this normally means Secure Erase.
- Workload-Independent Preconditioning: A prescribed workload that is unrelated to the test workload.
- Workload-Based Preconditioning: The actual test workload (4 KB random, 128 KB sequential, and so on), which pushes the drive towards a steady state.
- Steady State: The point at which the drive’s performance is no longer changing for the variable being tracked.
These steps are critical when testing SSDs. It’s incredibly easy to not fully condition the drive and still observe out-of-box behavior, which may lead one to think that it’s steady-state. These steps are also important when going between random and sequential writes.
For all performance tests in this review, the SSS PTS was followed to ensure accurate and repeatable results.
All tests employ random data, when available. Micron's P420m does not perform any data compression prior to writing, so there is no difference in performance-based data patterns.
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merikafyeah Seems like enterprise non-volatile storage is finally starting to approach the speeds of comsumer ram drives:Reply
http://www.thessdreview.com/our-reviews/romex-fancycache-review-ssd-performance-at-13gbs-and-765000-iops-in-60-seconds-flat/
Considering that the cost/GB of RAM is about $7/GB, it may not be such a bad idea to use RAM storage + backup generators instead of traditional non-volatile flash nand. -
rezzahd Maybe once the price drops I would pick one of these up, but I think we all know it will be a while before that happens.Reply -
BasslineJunkie Reply
Same here. I love the concept but price/gb isn't where it should be. But i do have some extra pci express slots that need filled!11507252 said:Maybe once the price drops I would pick one of these up, but I think we all know it will be a while before that happens.
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utomo It is good to see good competition like now. keep comparing like this and hope soon we will get the good mature technology. now the SSD still have many improvement ideas. manufacturer need to work harder to win the market which is big.Reply -
ACTechy Awesome. Later down the road, when the price falls, these are going to be the thing to have. Really like PCI based SSD.Reply -
urbanman2004 TL;DR. I could benefit from something like this saving space on my system. It must have a hefty priceReply