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Samsung Dismisses SSD Reliability Concerns

Samsung Dismisses SSD Reliability Concerns

by , 1:45 PM EST, February 22nd, 2008

There is some potential confusion about the reliability of Solid State Drives (SSD) like the one available in the new MacBook Air, according to Samsung. The company also discussed future storage capacities and pricing.

The concern that has been expressed is that NAND flash memory can, electrically, wear out after about 100,000 write cycles. However, in a C|Net article posted by Brooke Crothers, Samsung's Michael Yang added clarification to that tidbit.

For example, if a Flash drive is rated at 100,000 writes, that means it can write ""to every single cell within the device," Mr. Yang said. Because writes to the disk are typically only to a small section of the storage, not every cell is written to on every write sequence. The controller actively engages in "wear leveling" Mr. Wang added.

This makes it almost impossible to "wear out" the SSD.

In Q3, 2008 Samsung is planning to introduce a 128 GB SSD, but they see even larger capacities, up to 256 GB before the end of 2008. In terms of cost, SSDs are expected to drop in price 35 to 45 percent a year. Right now, the 64 GB SSD option in the MacBook Air adds US$900 to the cost.

It won't be long before the SSDs are price competitive with HHDs, and that has the attention of financial services companies like CitiBank and American Express whose server farms conduct massive transactions every day. Their extensive adoption, along with other enterprise companies, could drive those SSD prices down to just about where all the MacBook computer users would like them to be, namely, negligible.

Observer Comments

Show: Subjects Only | Full Comments
Close Name:Guest
Subject: Moot

Macworld did some tests on the Air's SSD drive and they found that it isn't much faster than the HD. Which makes it kinda pointless to get one.

Close Name:gopher Posts: 291 Joined: 28 Mar 2002
Subject: Re: Moot

Actually not quite. SSD should in theory be more reliable than hard drives because of the lack of moving parts. As for the speed issues, it says there is much left to improve the speed of the interface between the SSD and the logicboard. It could be a lot faster if properly designed.

Close Name:macgeek21 Posts: 1 Joined: 25 Feb 2008
Subject:

yes theoretically flash should be way faster then HD's because theres no moving parts in flash so seek time is vitually nothing. however that does NOT mean that suddenly your whole computer is going to be a speed deamon. applications that need to write to the disk alot such as photoshop and video editing(although thats happen a lot less now with 64 bit chips) will benift from having a SSD but thats not to say your going to be doing twice the amount of editing you did before. you have to look at the computer as a whole the speed of the processor memory and cache all play a role in the speed of your computer.

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