Software eliminates silent data corruption from SATA drives.July 19, 2007 -
Designed for S2A9550 storage solution, DirectOS 3.08, featuring S2A SATAssure(TM), detects and corrects silent data corruption by performing real-time parity checking on all read I/Os without incurring performance penalty. This ensures absolute data integrity and enables use of SATA drives in large, scalable pools from 100 TB up to several petabytes. In operation, SATAssure monitors all SATA drives managed by S2A storage controller, and will journal write operations to drive that may be failing.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
DataDirect Networks Inc.
9351 Deering Avenue
Chatsworth, CA, 91311
USA
DataDirect Networks Announces Breakthrough SATAssure Technology to Eliminate Silent Data Corruption from SATA Drives
S2A SATAssure delivers lower rebuild times, increased reliability, improved data availability and optimal performance for massive SATA drive pools
CHATSWORTH, Calif., July 10 /-- DataDirect Networks Inc., the storage performance and capacity leader, announced today the release of DirectOS 3.08, featuring S2A SATAssure(TM) for its SATA equipped S2A9550 storage solution.
The newly updated S2A9550 is the only storage array on the market that detects and corrects 'silent data corruption' inherent in SATA drives by performing on-the-fly real-time parity checking on all read I/Os without incurring any performance penalty. This ensures absolute data integrity and enables the use of SATA drives in large, scalable pools that measure from 100 terabytes to several petabytes (one petabyte is 1,000 terabytes) in capacity.
A single S2A intelligent storage controller manages up to 960 SATA drives (nearly 1000 Terabytes of data) in two datacenter racks. This massive, stable, and secure pool of large-capacity SATA drives, combined with the S2A's superlative throughput performance is ideal for tape replacement, disk-to-disk backup, active archive, and virtual tape library applications.
"We are at the stage where end users are consuming magnitudes more capacity and retaining data for longer periods of time," said Tony Asaro, Senior Analyst, Enterprise Strategy Group. "We've done a great job at reacting to problems when they occur. There are storage systems with various RAID levels, snapshot copies and replication technologies. However, we have done a relatively poor job at solving problems before they happen. That is what DataDirect is bringing to the table. What is compelling about S2A is that it is preventative data protection. As our data stores get bigger, the need for preventative data protection will become even more valuable and necessary."
In addition to protecting against corrupted data, SATAssure reduces the need to perform lengthy drive rebuilds due to SATA disk drive errors, lowering drive replacement rates and the risk of data loss. In operation, SATAssure monitors all SATA drives managed by the S2A storage controller, and will journal write operations to a drive that may be failing. The S2A attempts recovery of the drive, and if successful must only rebuild the journal instead of the entire disk, dramatically lowering rebuild times and increasing data security. Drive Recovery Journaling works on multiple drives at the same time, protecting against more severe events like SFP failures that could affect multiple drives at once.
"Storage pools based on SATA are now passing a petabyte in size, and most certainly will get much larger," added Mike Karp, Senior Analyst, Enterprise Management Associates. "But such large size imposes its own set of problems. Heading the list of issues are the twin likelihoods of more instances of data corruption, and the much longer rebuild times required for the new terabyte and larger disk drives, problems that will be at their worst when the drives are configured as part of RAID systems. The SATAssure technology from Data Direct Networks addresses these issues proactively, attempting to solve them before they occur, and does it with minimal impact on system performance. This should result in less operator intervention and more system uptime."
"Businesses today are looking for ways to keep more data online and available," concluded Josh Goldstein, Vice President of Product Marketing for DataDirect Networks. "The new SATAssure features in our S2A9550 deliver a compelling alternative to tape storage -- making disk-based storage upwards of 100 terabytes feasible, inexpensive, easy to manage, reliable, and secure."
About DataDirect Networks
DataDirect Networks is the leading provider of scalable storage systems for performance and capacity driven applications. DataDirect's S2A (Silicon Storage Appliance) architecture enables modern applications such as video streaming, content delivery, modeling and simulation, backup and archiving, cluster and supercomputing, and real-time collaborative workflows that are driving the explosive demand for storage performance and capacity. DataDirect's S2A technology and solutions solve today's most challenging storage requirements, including providing shared, high-speed access to a common pool of data, minimizing data center footprints and storage costs for massive archives, reducing simulation computational times, and capturing and serving massive amounts of digital content.
Web site: http://www.datadirectnet.com/
|
|
|
|
|
|
|
| 
