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n. Abbr. PB
1. A unit of computer memory or data storage capacity equal to 1,024 terabytes (250 bytes).
2. One quadrillion bytes.


(Units) computing 1015 or 250 bytes


(ˈpɛt əˌbaɪt)

n. Computers.
1. 250 (1,125,899,906,842,624) bytes; 1024 terabytes.
2. 1015, or one quadrillion (1,000,000,000,000,000), bytes; 1000 terabytes.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.petabyte - a unit of information equal to 1000 terabytes or 10^15 bytes
computer memory unit - a unit for measuring computer memory
terabyte, TB - a unit of information equal to 1000 gigabytes or 10^12 (1,000,000,000,000) bytes
exabyte, EB - a unit of information equal to 1000 petabytes or 10^18 bytes
2.petabyte - a unit of information equal to 1024 tebibytes or 2^50 bytes
computer memory unit - a unit for measuring computer memory
tebibyte, TiB, terabyte, TB - a unit of information equal to 1024 gibibytes or 2^40 (1,099,511,627,776) bytes
EiB, exbibyte, exabyte, EB - a unit of information equal to 1024 pebibytes or 2^60 bytes
References in periodicals archive ?
TEHRAN (FNA)- There aren't many ways to make data center storage exciting, but mentioning a drive that could hold up to one petabyte (1,000 terabytes) comes close.
A private storage cloud that can cost-efficiently store and manage data on a smaller scale is important if you don't need petabyte capacity to get started.
9 petabytes (1 petabyte = 1,000 terabytes) of data to be stored in a standard 19-inch data center rack.
One petabyte = 1,000 terabytes; one terabyte = 1,000 gigabytes; and one gigabyte = 1,000 megabytes.
If you want to try and get some idea of what a petabyte, if you counted all the bytes in one petabyte (one every second) it would take you 37.
In "The Petabyte Challenge: 2011 IOUG Database Growth Survey," close to 1 out of 10 respondents report that the total amount of online (disk-resident) data they manage today--taking into account all clones, snapshots, replicas and backups--now tops a petabyte.
The index maps 1 Petabyte (PB) of physical storage utilizing just 4 GB of RAM on the hosting server, representing a 250,000:1 ratio of storage to memory.
The volume of e-records the ERA program expects to receive from agencies between 2005 and 2010 is estimated at almost a petabyte of data.
50% More TB, While Using About The Same Power As a 60-Watt Light Bulb; Enables Greener Data Centers and Enables over One Petabyte per Rack
Fujitsu said it is enabling enterprises to push beyond the boundaries of unpredictable data growth into the double-digit petabyte range, with the introduction of the new FUJITSU Storage ETERNUS DX8700 S3 and DX8900 S3.
Spurred on by customer demand to provide more detailed information faster and at lower costs, CGG adopted a storage network infrastructure and a tiered storage approach to manage their nearly 1 petabyte of data assets.
Their GridWorks storage resource management platform, coupled with McDATA SANavigator, monitors more than a petabyte of customer data across approximately 1,500 companies, dozens of SANs and thousands of servers to assist clients in protecting their data and managing their resource management objectives.