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Hitachi Deskstar 5K4000 Review

Finally, a 4TB hard drive. That’s one more than three!

MOST OF US DON'T NEED 4TB hard drives. Most of us don’t even need 3TB drives. Unless you create, edit, or store lots of high-definition video; have backups of all your machines; have a massive lossless audio library; or…. You know what? Maybe we do need 4TB drives. After a couple of years making do with puny 3TB drives (like animals!), it’s time to get 25 percent more stuff into our 3.5-inch drives. Though other drive makers offer 4TB external drives, Hitachi GST is the first drive maker to give you 4TB on the inside. And didn’t your mother or mother-equivalent teach you that it’s what’s on the inside that counts?

We’ve been expecting 4TB drives since Seagate’s 1TB/platter 3TB drive in the January 2012 issue, but the four-platter 4TB 7,200rpm drive we’ve been dreaming of isn’t here yet. Instead, we get Hitachi’s Deskstar 5K4000, which packs a full four terabytes into a standard 3.5-inch drive, but on five platters, not four. The platters have a maximum areal density of 443Gb per square inch. The 5K4000 has 32MB of cache, a 6Gb/s SATA controller, and a spin speed of 5,400rpm.

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OCZ Octane Review

Remember Indilinx? The company’s Barefoot SSD controller was the first really good solid-state controller. It was one of the first controllers to offer Trim support, as well as sustained read and write speeds near 200MB/s, and it ruled the roost until SandForce’s SF-1200 controller leapt ahead of Barefoot’s capabilities. The company’s next-gen controller was delayed, and in March 2011 OCZ bought the company. It’s been nearly a year, but OCZ finally has a consumer drive with the new Indilinx Everest controller. Was it worth the wait?

The 512GB Octane drive sent to us by OCZ contains 16 256Gb 25nm Intel synchronous NAND modules, two 2Gb Micron DDR3 SDRAM cache modules (512MB total), and, of course, the Indilinx Everest controller, all in a standard 2.5-inch SSD form factor. In CrystalDiskMark, it averaged 445MB/s sustained reads (35–40MB/s slower than the SandForce drives we’ve tested) and 315MB/s sustained writes (15MB/s faster). Its single-queue-depth 4KB random writes were competitive at around 5,600 IOPS, but at QD32, it only put out 22,000 IOPS—Samsung’s 830 Series does 35,000 and the Patriot Pyro SE does over 90,000. The Octane’s maximum response time in Iometer, at 429ms, is a bit worrying, too—its competitors have max response times of around 40ms. The Octane’s video encoding performance was within seconds of the other drives, and its PCMark Vantage and PCMark 7 scores, though lower than the rest, weren’t too shabby.