SanDisk's Extreme Pro series 2.5" SATA III SSD is available in three capacities, 240GB, 480GB, and 960GB. Specifications list the 7mm x 2.5"Extreme Pro SSDs as having a bandwidth performance of up to 550MB/s sequential read and 520MB/s sequential writes. 4KB random read performance is listed at up to 100,000 IOPS, and 4KB random write performance is listed at up to 90,000 IOPS.
When you purchase a retail packaged Extreme Pro SSD, you get the SSD and a 7mm to 9.5mm plastic spacer to better accommodate the drive in laptops that are designed for 9.5mm HDDs. As mentioned previously, SanDisk has their custom SSD dashboard for end-user management available through free download. SanDisk provides an industry leading ten-year limited warranty to back the Extreme Pro.
Because this is a RAID review, we are going to focus on performance rather than features. For a more in-depth look at the SanDisk Extreme Pro's feature set, I will refer you to Chris Ramseyer's extensive review of SanDisk's Extreme Pro 240GB SSD.
Drive Details - SanDisk Extreme Pro 240GB SSD
The top of the Extreme Pro's enclosure is formed from a single piece of black plastic. Centered on the top face of the drive is a black manufacturer's sticker with red, white, and gold lettering.
The bottom and sides of the Extreme Pro's enclosure is formed from a single piece of stamped aluminum that has been painted black. Centered on the rear face of the enclosure is a manufacturer's sticker that lists the drive's part number, serial number, capacity, and interface.
Here's what the SanDisk Extreme Pro 240GB SSD looks like completely disassembled. The Extreme Pro has a full-size PCB. The drive's controller, DRAM module, and NAND chips all make contact with a thermal pad, thereby dissipating heat generated into the aluminum half of the enclosure. The other side of the PCB is devoid of any major components.
Test System Setup
- Drive Properties
The majority of our testing is performed with our test drive/array as our boot volume. Our boot volume is 75% full for all OS Disk "C" drive testing to mimic a typical consumer OS volume implementation. We are using 64k stripes for our two to three drive arrays, and 32k stripes for our four to six drive arrays. Write caching is enabled, and Windows buffer flushing is disabled.
All of our testing includes charting the performance of a single drive, as well as RAID 0 arrays of our test subjects. We are utilizing Windows 8.1 64-bit for all of our testing. We will be posting screen shots of our six-drive array's benchmarks.
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- Page 1 [Introduction]
- Page 2 [Specifications, Drive Details, Test System Setup, Drive Properties, Pricing, and Availability]
- Page 3 [Synthetic Benchmarks - ATTO, Anvil Storage Utilities, CrystalDiskMark & AS SSD]
- Page 4 [Benchmarks (Trace Based OS Volume) - PCMark Vantage, PCMark 7 & PCMark 8]
- Page 5 [Benchmarks (Secondary Volume) - Disk Response & Transfer Rates]
- Page 6 [Benchmarks (Secondary Volume) - PCMark 8 Extended]
- Page 7 [Final Thoughts]
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