Feeds

Crucial releases really skewed cheap flash drive

64GB RealSSD

Top 5 reasons to deploy VMware with Tegile

Lexar has announced a 64GB version of its Crucial RealSSD flash drive with enormously skewed read and write rates.

The 2.5-inch format product is a dwarf compared to its 128GB and 256GB counterparts, and a comparative sluggard at writing.

The 64GB version uses the same multi-level cell flash from Micron as the other two but there is obviously much less of it, so the scope for parallelism is reduced. It has the same fantastic 355MB/sec sequential read rate and a 50,000 random read IOPS rating, with 4K blocks, equal to the 128GB unit, but its sequential write rate is a derisory 70MB/sec, and its random write IOPS rating is 15,000. The 128GB product's is 30,000 and the 256GB product's is 45,000.

The sequential write bandwidth for the 128GB and 256GB products are 140MB/sec and 215MB/sec respectively. According to Micron SSD spokesman Ben Thiel, quoted in a Micron blog, the reason for the skewed read and write performance on the 64GB product is "parallelism".

Thiel went on to say: "As we add more NAND die to the C300 platform, the drive can perform more parallel transactions, which increases write performance.

"The other capacity-specific difference is the amount of over-provisioning that is available. Over-provisioning essentially refers to 'spare area' that is reserved for background operations that are fundamental to the drive’s performance. NAND natively has around 6 percent over-provisioning built in, so as SSD capacity goes up so does the corresponding percentage of over-provisioning. This increase in 'spare area' results in greater performance in the larger capacity drives."

The 64GB product is comparatively cheap at $149.99 (about £121.00), and is intended as a boot drive and application loader, not a general read/write device, for consumer notebooks. It also has a 6Gbit/s SATA interface, and the sequential read rate drops to 265MB/sec with SATA II and its 3Gbit/s, which is what the majority of notebooks use. Still, that's not exactly slow compared to a hard disk drive. ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
Azure TITSUP caused by INFINITE LOOP
Fat fingered geo-block kept Aussies in the dark
NASA launches new climate model at SC14
75 days of supercomputing later ...
Yahoo! blames! MONSTER! email! OUTAGE! on! CUT! CABLE! bungle!
Weekend woe for BT as telco struggles to restore service
Cloud unicorns are extinct so DiData cloud mess was YOUR fault
Applications need to be built to handle TITSUP incidents
NSA SOURCE CODE LEAK: Information slurp tools to appear online
Now you can run your own intelligence agency
BOFH: WHERE did this 'fax-enabled' printer UPGRADE come from?
Don't worry about that cable, it's part of the config
Stop the IoT revolution! We need to figure out packet sizes first
Researchers test 802.15.4 and find we know nuh-think! about large scale sensor network ops
DEATH by COMMENTS: WordPress XSS vuln is BIGGEST for YEARS
Trio of XSS turns attackers into admins
SanDisk vows: We'll have a 16TB SSD WHOPPER by 2016
Flash WORM has a serious use for archived photos and videos
prev story

Whitepapers

Choosing cloud Backup services
Demystify how you can address your data protection needs in your small- to medium-sized business and select the best online backup service to meet your needs.
Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Designing and building an open ITOA architecture
Learn about a new IT data taxonomy defined by the four data sources of IT visibility: wire, machine, agent, and synthetic data sets.
10 threats to successful enterprise endpoint backup
10 threats to a successful backup including issues with BYOD, slow backups and ineffective security.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?