January 30, 2012

Seagate Versus Western Digital: The Hard Disk Drive Battle Lines Are Drawn

"So it is down to you, and it is down to me."

Both Seagate and Western Digital have much to gain from these transactions. Western Digital becomes a full line giant of the industry, a credible competitor, and a successful supplier to OEMs. Seagate also retains its credibility in the market, but also gains access to Samsung, one of the strongest electronics companies in the world. Time will tell which of these companies got the better deal.

Toshiba Offers “Blade” SSDs (Like Apple’s MacBook Air)

It won't be long before other manufacturers adopt the new SATA SSD form factor introduced in the MacBook Air

More information about the unconventional SSD used in Apple’s new MacBook Air. As I discussed in my previous coverage of this new flash form factor, it resembles a PCI Express Mini Card but is much smaller. Toshiba has now proved my speculation that the device uses SATA signals rather than the PCI Express lane used by the similar AirPort card. We also know that the lauded performance of the device is due to its chips and controller rather than skipping SATA in favor of PCIe as some had speculated.

The Four Horsemen of Storage System Performance: Never Enough Cache

Write-Through Cache

Perhaps the previous discussion of spindles left you exhausted, imagining a spindly-legged centipede of a storage system, trying and failing to run on stilts. The Rule of Spindles would be the end of the story were it not for the second horseman: Cache. He stands in front of the spindles, quickly dispatching requests using solid state memory rather than spinning disks. Cache also acts as a buffer, allowing writes to queue up without forcing the requesters to wait in line.

Smoking-Fast Laptops: Seagate Momentus XT Hybrid SSD Disk Drive Confirmed!

Thar she blows! Seagate's hybrid ssd/hard disk drive is real!

There has been much speculation that a new generation of hybrid flash/hard disk drives was right around the corner, and Provantage confirmed it today: The reseller posted a family of “Momentus XT” 2.5″ laptop drives for sale on their web site, shipping in 3-4 weeks. Many other sites began listing the drives as well, and The Register got the scoop, benchmarks, and official comment.

Flash Forward or Flash Back?

This is part of an ongoing series of longer articles I am posting every Sunday. The tech industry has been buzzing about solid state drives (SSDs) again lately, but many questions remain. Even after many major vendors (Apple, EMC, and Dell to name a few) have introduced NAND flash-based disk into their core products, it is [...]

SSD: So Close and Yet So Far

Fram approaching in front of iceberg upernavik, copyright Kim Hansen

Solid state (NAND flash) storage is all the rage right now, but there are many lingering questions regarding its true performance, reliability, and cost. But no question is more important in determining its ultimate usefulness than that of location: Where should flash storage be placed to maximize return on investment? Storage companies have argued that [...]

Big Little Disks Are On The Way

The relentless march of hard drive capacity is about to reach its next cantonment as 500 GB 2.5″ drives begin to arrive this month.  These little half-terabyte wonders will continue the downward pressure on price and challenge flash-based drives just as they stake their claim in the main stream of the market.