海量資料量

source : http://mndoci.com/2010/06/30/massive-data/

Facebook
36 PB of uncompressed data
2250 machines
23,000 cores
32 GB of RAM per machine
processing 80-90TB/day

Yahoo
70 PB of data in HDFS
170 PB spread across the globe
34000 servers
Processing 3 PB per day
120 TB flow through Hadoop every day

Twitter
7 TB/day into HDFS

LinkedIn
120 Billion relationships
82 Hadoop jobs daily (IIRC)
16 TB of intermedia data
2 engineers

WOW........

Rackspace開源雲計算技術--轉載自Solidot

RackSpace 宣布開源其雲計算技術OpenStack。OpenStack采用 Apache 2.0許可證發布源代碼。Rackspace目前發布的開源雲計算技術包括雲存儲和雲虛擬服務器管理套件。此外NASA也捐出了Nebula 雲計算平台技術。OpenStack的合作夥伴包括AMD、戴爾、Citrix等。

2010-07-21 uodate
gslin的介紹