Seagate joins the terabyte disk club
Seagate is a launching a pair of 1TB capacity disks with advanced power-saving technology. This could save up to a quarter of the power consumed by normal drives. It has also announced a ruggedized 2.5-inch drive holding 80G bytes. Hitachi was first to market with a 1T byte drive a month or so ago.
The Barracuda 7200.11 is a 3.5-inch format drive, spinning at 7,200rpm and holds 500GB, 750GB or 1TB of data. Its sustained data rate of 105MB/s is the highest ever attained for a desktop drive and it is also the world's quietest desktop drive. Conceptually the 1TB drive is four 250GB platters using Seagate's 2nd generation perpendicular recording technology. The interface is serial ATA (SATA) II running at 3GB/s.
The Barracuda ES.2 is the enterprise version of the drive with improved mean time before failure of 1.2 million hours compared to the consumer version's 1 million hours. It has both SATA and SAS (serial attached SCSI) interfaces and comes in 250GB, 500GB, 750GB and 1TB configuration.
Seagate has added a power-saving technology, branded PowerTrim, to these drives. Their electronics are managed by new firmware and hardware that monitors what the drive is doing and switches off power to unused parts of the drive electronics. If the drive is reading then separate read electronics can be switched off. Ditto for the write electronics if the drive is reading data. If there is no data being transferred then the cache and memory can be switched off and/or refresh cycles delayed.
This micro-control of power within the drive yields an average power saving of about 25 percent over a drive without the technology. That translates into quite a substantial power saving in an array of such drives. It generates a 125GB/watt rating compared to the previous ES generation's 80GB/watt.
The drives come with either SATA (for consumers and enterprises) or SAS (for enterprises) interfaces and have an MFRP of US$399, which is the same as competitor Hitachi GST's 1TB drive.
Hitachi's 5-platter 1TB drive does not come with an SAS interface making it less attractive to enterprise customers.
Seagate has also announced the ES25.2, a hardened 80GB, 2.5-inch, SATA drive built to operate in rough environments with hostile temperature, vibration, humidity, shock and altitude conditions. It can withstand more vibration than any other stand-alone drive and comes with a 5-year warranty.
» posted by ITworld staff
Techworld.com
Symantec Backup Exec 12 and Backup Exec System Recovery 8 deliver industry leading Windows data protection and system recovery. Download this whitepaper to find out the top reasons to upgrade and how to get continuous data protection and complete system recovery.
Data and system loss — from a hard drive failure, malicious attack, natural disaster, or simple human error — can happen anytime. Don’t leave your business vulnerable. Make sure you have a secure recovery strategy in place. Symantec's latest backup and system recovery technology can efficiently restore critical applications, individual emails and documents and even restore your entire system in minutes in the event of a loss.
Businesses face a growing challenge to ensure that the IT environment is properly protected. Backup Exec 12 integrates with other applications in the Symantec family of products, to complement your current data protection strategy, keep your data securely backed up and make it recoverable when you need it most.
Enterprise 2.0 Implementation
By Aaron C. Newman, Jeremy Thomas
Published by McGraw-Hill
Learn more!
Deploying Cisco Wide Area Application Services
By Zach Seils, Joel Christner
Published by Cisco Press
Learn more!
