RAID 5 4k Random Read/Write
We notice much more differentiation between the two controllers in RAID 5 testing, especially in write workloads. We start with a 4k random read workload that the ASR-8885 leads with an outstanding average of 685,760 IOPS at 256 OIO. The 9361-8i averages 557,037 IOPS at the highest workloads, but it again exhibits solid scaling at the lower-end.
The 9361-8i tops out at 48,554 IOPS at 128 OIO and then slows down to 45,639 IOPS at 256 OIO. The ASR-8885 reaches its peak of 31,057 at 32 OIO and then drops rapidly to a low of 22,929 at 256 OIO. While both controllers exhibit performance degradation at the highest loading, the LSI weathers the slight dip easily. The ASR-8885 has more profound degradation with heavy write performance scaling.
The latency measurements reflect a nearly 2X advantage for the 9361-8i at 256 OIO.
Write performance scales as we would expect in this test for the 9361-8i. The ASR-8885 leads with a pure read workload, but it hits a massive cliff when we mix in a light 10 percent write workload. The ASR-8885 cedes the rest of the test to the 9361-8i as we mix in more write activity. Even the slightest of write workloads knocks the ASR-8885 off its perch atop the read chart.
We normally do not present some test results, especially if they seem repetitive. We record latency during our mixed workloads, but for simplicities sake, we do not report on 'expected' results.
However, the odd behavior of the ASR-8885 deserves investigation. The LSI plateaus at a 20 percent write workload and is fairly even for the remainder of the test. The ASR-8885 continues to experience increasing latency as we mix in more writes, topping out at a staggering 15.43ms with a 90 percent write workload. We repeated these tests several times to confirm that the results are repeatable.
PRICING: You can find products similar to this one for sale below.
United States: Find other tech and computer products like this over at Amazon's website.
United Kingdom: Find other tech and computer products like this over at Amazon UK's website.
Canada: Find other tech and computer products like this over at Amazon Canada's website.
Recommended for You
- We at TweakTown openly invite the companies who provide us with review samples / who are mentioned or discussed to express their opinion of our content. If any company representative wishes to respond, we will publish the response here.
Latest News Posts
- 5G spec: 20Gbps down, 1 million devices per square km
- SpeedTree 8 to be shown at GDC 2017 on Amazon Lumberyard
- Oculus Rift, Gear VR could be ripped off the market soon
- Intel rocked to its Core over Ryzen, price drops begin
- Corsair's Lighting Node Pro: taking control of your LEDs
- Blind BIOS update both backup and main BIOS chips are empty
- Main and backup BIOS are damaged or wipped
- Halo Wars 2 Xbox One Review
- Asus Zenfone 2 Laser 5.5s rear camera is not working
- ASUS ROG SWIFT PG258Q: Crazy Fast Gaming @ 1080p 240Hz
- ASRock launches a new era of performance with AMD Ryzen motherboards
- Nintendo eShop, Indie Games Ready for Nintendo Switch Launch
- Innovation and competition return to high-performance PCs March 2nd with worldwide AMD Ryzen 7 availability
- Final Fantasy awarded Guinness World Records title for most prolific role-playing game
- InstaVR launches publishing compatibility with HTC VIVE, cnabling companies to create high quality long-form VR video applications