Tech content trusted by users in North America and around the world
5,981 Reviews & Articles | 38,647 News Posts

Adaptec by PMC ASR-8885 12Gb/s RAID Controller Review - RAID 0 128K Sequential Read/Write

Adaptec by PMC ASR-8885 12Gb/s RAID Controller Review

We test a prototype of the new Adaptec 12Gb/s ASR-8885 RAID controller with two high-powered arrays in RAID 0 and RAID 5. Amazing performance inside. (NASDAQ:PMCS)

| RAID/HBA in IT/Datacenter | Posted: Nov 18, 2013 2:00 pm
TweakTown Rating: 92%      Manufacturer: Adaptec by PMC

RAID 0 128K Sequential Read/Write


TweakTown image content/5/8/5894_24_adaptec_by_pmc_asr_8885_12gb_s_raid_controller_review.png


The 128K read sequential speeds reflects the maximum sequential throughput of the SSD using a file size encountered in an enterprise scenario. The Micron's pull ahead in this test, leveraging their impressive read speed, topping out at 6,080 MB/s, while the HGST array peaks at 5,875 MB/s. We are clearly bumping up against controller limitations with both SSD arrays saturating the controller.


TweakTown image content/5/8/5894_25_adaptec_by_pmc_asr_8885_12gb_s_raid_controller_review.png


128k read latency results indicates the HGST SSD's are more nimble at lower Queue Depths, where the controller has fewer devices to manage. Both arrays reach the best IOPS/latency ratio at QD128.


TweakTown image content/5/8/5894_26_adaptec_by_pmc_asr_8885_12gb_s_raid_controller_review.png


HGST array reaches the maximum speed of the controller with 5,198 MB/s, and peaks as high as 5,645 MB/s at QD256. The Micron array tops out at 2,771 MB/s, which leaves quite a bit of performance lost in the scaling of the controller. With each P400m conservatively rated at 310 MB/s of sequential write speed we should hit at, or above, 4,960 MB/s.


TweakTown image content/5/8/5894_27_adaptec_by_pmc_asr_8885_12gb_s_raid_controller_review.png

Related Tags

Further Reading: Read and find more IT/Datacenter content at our IT/Datacenter reviews, guides and articles index page.

Do you get our RSS feed? Get It!

Post a Comment about this content

Latest Tech News Posts

View More News Posts
Check out TweakTown Polls on LockerDome on LockerDome

Forum Activity

View More Forum Posts

Press Releases

View More Press Releases