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Print 43 comment(s) - last by tygrus.. on Jul 28 at 10:12 AM

Samsung solid-state NAND hard drives will be cheaper than reported, more versatile

Earlier today Samsung announced its 4GB solid-state NAND hard drives. The 1.8" and 2.5" devices will primarily be marketed for enthusiast and high-end desktops supporting Microsoft Windows Vista's ReadyBoost feature.

A DailyTech competitor claims "Samsung confirmed to TG Daily that the SSD is likely to be priced below $200," implying the price of the drive would be just under $200.  In fact, when DailyTech talked to Samsung the company confirmed that the device will cost significantly less than that, perhaps as much as $100 less. The company has not released pricing on the drive yet, but current prices on the NAND spot market quote 4GB of flash memory between $62 and $70.  Samsung Semiconductor's Director of Flash Marketing, Don Barnetson, was able to confirm that a slight premium on these prices was more in line with real pricing of the drives.

Samsung clarified during our conversation that the initial versions of the SSD will feature a Parallel ATA interface as opposed to the newer Serial ATA interface use in notebooks and PCs. Additionally, many of the chipsets Intel is releasing do not support the PATA interface so Samsung will definitely need to think about switching to SATA sooner than later. The SSD drives can be mounted in a PC using mechanical mounts or a 2.5-inch slot.

According to Samsung, the 4GB SSD should be ready to ship in time for the Vista launch, and features 57MBps read speeds and 31MBps write speeds and up to 5,000 operations per second.


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RE: Seek Time Difference
By kingpotnoodle on 7/26/2006 10:23:09 PM , Rating: 2
The most time consuming thing about hard drive access is the seek times (the read head moving and the disk rotating to bring the right block under the head), once the read head is in position its quick... thats why fragmentation is a bad thing because it causes the read heads to have to re-seek rather than reading contiguous sectors.


RE: Seek Time Difference
By tygrus on 7/28/2006 10:12:49 AM , Rating: 2
A general desktop drive gets around 80-120 iops (iometer) for random wirtes. 100 random reads per second of 32KB each means 3.125MBps. High-end SCSI with seek optimisations might get 400iops so that would be 12.5MBps. That's very short of the ~30MBps write and 57MBps read of the SSD. Yes, sequential read/write is much slower for current SSD but anything more than 20 seeks per second and the HD's are typically slower. Cheap SSD is now quite attractive.

FLASH memory can use redundant data cells to remap areas lost to too many writes. They can also spread the file writes over the disk so the same spot isn't used too many more times than everywhere else. 1M writes for each block = 1M cycles of every cell being re-written. Pre-FLASH EEPROM was about 1000 cycles.


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