IBM and Sun have both announced in-built encryption for new tape drive, which lets users protect data on tapes in case they are lost or stolen.

Because the encryption capability is built into the drive itself, backup servers and networks won't take a performance hit.

IBM announced that its TS1120 tape drive will include native encryption capabilities from then on thanks to a custom chip. Existing users of the tape drives can upgrade, the company said. However, the tape drives will cost 10 percent more.

"We've encouraged people to use encryption, which some of them haven't been able to do," said Kevin Rhoden, CIO at Iron Mountain, which had been criticised last year for losing tapes.

Sun also announced encryption for its T10000 tape drive. It is making it available as an option for an unspecified "small premium", said Nigel Dessau, Sun's vice president of storage marketing. The company will start shipping a Fibre Channel version this month and a mainframe (Ficon) version by the end of the year, he said.

Sun is also announcing enhancements to its virtual tape library product, VTL Plus, with performance improvements of up to 30 percent and a higher capacity thanks to its use of the Sun 6000 disk subsystem, said Bill Watts, product manager for VTL. It will be available in two to three months.

IBM is planning to submit its technology to the Linear Tape Open Consortium for use in its next version of the industry standard tape specification, LTO 4, which is due out next year. It has also provided a "statement of direction" that it will include the encryption technology on disk platforms at some unspecified time, said Cindy Grossman, vice president of tape storage systems at IBM.