petabyte

1. Online data is growing rapidly, and terms like terabyte, petabyte, and exabyte are commonly used.
   在线数据快速地增长，TB（terabyte）、PB（petabyte）和EB（exabyte）以成为常用的数据单位。
2. As database size grows into terabyte and petabyte, the time and hardware resources required will grow substantially.
   当数据库大小增长到GB和PB级时，所需的时间和硬件资源将极大的增长。
3. Some incarnations of GFS are file systems "many petabytes in size"& a petabyte being a million gigabytes.
   很多Google文件系统的体积都异常庞大，有好几个petabyte规模（1petabyte相当于1百万gigabytes）。
4. The mass storage systems need to be saved Terabyte and Petabyte level even more massive data.
   海量存储系统中需要保存Terabyte、Petabyte级别甚至更大规模的数据。

noun

1. a unit of information equal to 1024 tebibytes or 2^50 bytes

   Synonym:    pebibytePBPiB

2. a unit of information equal to 1000 terabytes or 10^15 bytes

   Synonym:    PB