14-04-2011, 11:31 AM
PRESENTED BY
RITTU P THOMAS
rittu pixie.pptx (Size: 72.69 KB / Downloads: 101)
WHAT IT MEANS!?
PIXIE DUST,IT MEANS MAGIC DUST FROM FAIRY OR PIXIE THAT HYPOTHITTICALLY ALLOWS HUMAN TO FLY;
IN INFORMATION TECHNOLOGY IT IS USED TO REFER “IMPOSSIBLE”
INTRODUCTION
PIXIE DUST IS A INFORMAL NAME USED BY IBM.
IT IS , ANTTIFERROMAGNETICALLY COUPLED MEDIA TECHNOLGY
WHAT IS IT
PIXIE DUST USED IS A 3-ATOM THICK MAGNETIC COATING COMPOSED OF THE ELEMENT RUTHENIUM SANWICHED BETWEEN TWO MAGNETIC LAYERS.
USE
IT CAN INCREASE THE CAPACITY OF HARD DRIVES TO UP TO FOUR TIMES THE DENCITY POSSIBLE WITH CURRENT DRIVES.
AFC OVERCOMES LIMITS OF CURRENT HARD DRIVES CAUSED BY A PHENOMENON CALLED THE SUPERPARAMAGNET EFFECT
WHY IT IS USED
IBMS USE OF AFC FOR HARD DRIVES OVERCOMES WHAT WAS COSIDERED AS AN INSUPERABLE PROBLEM FOR STORAGE.
HARD DRIVE CAPACITIES HAVE MORE OR LESS DOUBLED IN EACH OF THE LAST FIVE YEARS.
AFC INCREASES POSSIBLE DATA DENCITY,SO THAT CAPACITY IS INCREASED WITHOUT USING EITHER MORE DISKS OR MORE HEADS TO READ THE DATA.
FUTURE EXPANTION
IT WAS ASSUMED IN THE STORAGE INDUSTRY THAT THE UPPER LIMIT WOULD SOON BE REACHED WITH THE FUTURE REFINEMENTS TO THE PROCESS OF ADDING THE AFC INNOVATION TO THE HARD DRIVE PRODUCTION .
IBM RESERCH DIRECTOR CURRIE MUNCE EXPECTS DATA DENCITIES OF 100 GB/SQ INCH
ADVANTAGES
THE SMALLER DRIVES WILL BE ABLE TO STORE MORE DATA AND USE LESS POWER.
THIS NEW TECHNOLOGY MAY ALSO LEAD TO SMALLER AND QUITER DEVICES.
THIS TECHNIQUE LEADS TO INCREASED CAPACITY COSTS LITTLE OR NOTHING.
CONCLUTION
JIMPORTTER DATA STORAGE REASERCH COMPANY SAID PRICES OF HARDDRIVES ARE UNLIKELY TO INCREASE DRAMATICALLY BECAUSE AFC INCREASES THE DENSITY AND STORAGE CAPACITY WITHOUT THE ADDITION OF EXPENSIVE DISKS.WHERE DATD IS STORED OR OFHEADS,WHICH DATA OF THE DISKS
RITTU P THOMAS
rittu pixie.pptx (Size: 72.69 KB / Downloads: 101)
WHAT IT MEANS!?
PIXIE DUST,IT MEANS MAGIC DUST FROM FAIRY OR PIXIE THAT HYPOTHITTICALLY ALLOWS HUMAN TO FLY;
IN INFORMATION TECHNOLOGY IT IS USED TO REFER “IMPOSSIBLE”
INTRODUCTION
PIXIE DUST IS A INFORMAL NAME USED BY IBM.
IT IS , ANTTIFERROMAGNETICALLY COUPLED MEDIA TECHNOLGY
WHAT IS IT
PIXIE DUST USED IS A 3-ATOM THICK MAGNETIC COATING COMPOSED OF THE ELEMENT RUTHENIUM SANWICHED BETWEEN TWO MAGNETIC LAYERS.
USE
IT CAN INCREASE THE CAPACITY OF HARD DRIVES TO UP TO FOUR TIMES THE DENCITY POSSIBLE WITH CURRENT DRIVES.
AFC OVERCOMES LIMITS OF CURRENT HARD DRIVES CAUSED BY A PHENOMENON CALLED THE SUPERPARAMAGNET EFFECT
WHY IT IS USED
IBMS USE OF AFC FOR HARD DRIVES OVERCOMES WHAT WAS COSIDERED AS AN INSUPERABLE PROBLEM FOR STORAGE.
HARD DRIVE CAPACITIES HAVE MORE OR LESS DOUBLED IN EACH OF THE LAST FIVE YEARS.
AFC INCREASES POSSIBLE DATA DENCITY,SO THAT CAPACITY IS INCREASED WITHOUT USING EITHER MORE DISKS OR MORE HEADS TO READ THE DATA.
FUTURE EXPANTION
IT WAS ASSUMED IN THE STORAGE INDUSTRY THAT THE UPPER LIMIT WOULD SOON BE REACHED WITH THE FUTURE REFINEMENTS TO THE PROCESS OF ADDING THE AFC INNOVATION TO THE HARD DRIVE PRODUCTION .
IBM RESERCH DIRECTOR CURRIE MUNCE EXPECTS DATA DENCITIES OF 100 GB/SQ INCH
ADVANTAGES
THE SMALLER DRIVES WILL BE ABLE TO STORE MORE DATA AND USE LESS POWER.
THIS NEW TECHNOLOGY MAY ALSO LEAD TO SMALLER AND QUITER DEVICES.
THIS TECHNIQUE LEADS TO INCREASED CAPACITY COSTS LITTLE OR NOTHING.
CONCLUTION
JIMPORTTER DATA STORAGE REASERCH COMPANY SAID PRICES OF HARDDRIVES ARE UNLIKELY TO INCREASE DRAMATICALLY BECAUSE AFC INCREASES THE DENSITY AND STORAGE CAPACITY WITHOUT THE ADDITION OF EXPENSIVE DISKS.WHERE DATD IS STORED OR OFHEADS,WHICH DATA OF THE DISKS