SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Technology Stocks : Seagate Technology -- Ignore unavailable to you. Want to Upgrade?


To: Dwayne Hines who wrote (7768)5/4/2011 12:26:59 AM
From: Sam  Respond to of 7841
 
Storage duopoly to transform industry?
Hybridisation could goose I/O density
By Chris Mellor • Get more from this author
Posted in Enterprise, 3rd May 2011 05:00 GMT
channelregister.co.uk

The after-effects of the Western Digital and Seagate embiggening could be to slow down technology development in the hard-disk drive industry. Why spend development money when you don't need to?

With WD buying Hitachi GST, now apparently going to be known as Viviti Technologies, and Seagate buying Samsung's HDD operation, the two big disk-drive beasts will control around 90 per cent of the HDD market, forming a duopoly.

The HDD industry has been characterised by consistent capacity increases and fairly regular technology transitions, such as the one that led to today's Perpendicular Magnetic Recording (PMR) technology, which cost a lot more than evolutionary technology development.

Now the industry is facing a hugely expensive jump to the next technology as PMR runs out of steam. A consortium embracing pretty much the entire HDD-component industry has been set up to agree on the main technology aspects of the change – Heat-assisted Magnetic Recording or Bit-Patterned Media, with maybe an interim Shingled Writing technology – and then get everybody signing off on the same hymn sheet at the same time.

Only that was back then, when there were five HDD manufacturers and no one had more than 30 per cent of the market. Now there are soon to be just three, with two of them in a market-dominating duopoly, and there must be sirens singing a song about capacity not being "the" disk-drive technology problem – while I/O density is the elephant in the HDD room that no one has been talking about.

HDD capacity has been rising and rising, but HDD spin speed has stayed resolutely stuck at 15K rpm for fast drives, 10K for mid-range drives, and 7.2K rpm for slow drives. These are all enterprise drives by the way; laptop drives go down to 5.4K rpm.

The number of I/Os per GB of stored data on a drive, the I/O density, has been getting lower and lower as capacity rises and a 3TB, 72K-rpm drive has literally awful I/O density. But there is a technology that could change that: stick a lump of flash memory on the drive and use it either as a fixed or dynamic cache.

Fix the I/O density problem without spinning faster

A fixed cache has pre-allocated data in it, such as system-boot files, while a dynamic cache looks at data patterns and puts hot data in it as data "temperature" varies over time. Seagate has led this hybridisation idea with its 2.5-inch Momentus XT, and now, methinks, the time is ripe for it to spread across the various HDD product ranges and give I/O density limitations, until now thought of as fixed, a deft kick in the butt.

The "siren" nature of this song is that it can be used to delay expenditures on the transition beyond PMR. Does the enterprise world need 4TB drives, and 6TB ones, and even 10TB ones? Imagine the truly, gob-smackingly awful RAID-rebuild times of such horrible disk drives. Switching to 2.5-inch drives just delays the onset of the problem. A 3TB 2.5-inch drive will have the same interminable RAID-rebuild times as a 3.5-inch one.

Let's kick the whole ball of crap into touch and develop drive hybridisation to bypass it, rather than spending billions of dollars on prodigiously expensive post-PMR transition technology that will make I/O density figures laughably worse.

Can our looming HDD duopoly make this transition? Proponents of rational pricing considerations might well look at it and ask: "Why are we waiting? This is a no-brainer."



To: Dwayne Hines who wrote (7768)6/23/2011 1:06:33 AM
From: Sam  Read Replies (1) | Respond to of 7841
 
Might be time to get back into Seagate, at least for a quick trade. Stock closed at $14.97 yesterday (Wed).

Hard drive supply gap estimated to widen to 15-20 million units in 3Q11
Erica Yen, Taipei; Joseph Tsai, DIGITIMES [Thursday 23 June 2011]
digitimes.com

Global hard drive demand in the third quarter is estimated to reach as high as 180 million units with the five major hard drive makers only capable of supplying 160-165 million units, increasing the supply gap from a shortage of 10 million units in the second quarter, according to sources from hard drive makers. The gap is unlikely to be filled before the end of 2011.

The strong demand in the third quarter will be mainly due to the IT product replacement trend in the enterprise market, as well as the increasing storage needs of cloud computing servers.

Although the supply shortage of hard drives will help maintain prices, hard drive shipments to enterprise servers, which were originally expected to strongly benefit makers, may face a decline. Currently, 50% of hard drive supply is used in desktops, notebooks and netbooks, with cloud computing servers only accounting for less than 10%. But since demand for Internet data storage is growing, hard drive makers are turning more aggressively toward the server hard drive market, which has higher profitability.

Currently, the top-10 notebook brand vendors have close to 80% of their models using either 320GB or 500GB hard drives, with the proportion at 5:5. In the third quarter, the proportion of 320GB and 500GB hard drive is expected to shift to 4:6 with 250GB models only having a very small percentage. 640GB and 750GB capacities will mainly be used in enterprise and gaming models and are unlikely to grow to become the mainstream specification in 2011.