RE: How to store 50 Terabytes per day?

To quote a no-name former employee, "if you run out of room in the data = center for disk drives, go build another building."

Ya right!!!

Dick Goulet
Senior Oracle DBA
Oracle Certified 8i DBA

-----Original Message-----
From: MacGregor, Ian A. [mailto:ian_at_slac.stanford.edu] Sent: Wednesday, September 08, 2004 12:43 PM To: Jared.Still_at_radisys.com; oracle-l_at_freelists.org Subject: RE: How to store 50 Terabytes per day?

Before replying please see:

http://www-search.slac.stanford.edu:8765/query.html?col=3D3Dslacweb&col=3D= 3Dt=3D
odays&col=3D3Dssrlweb&col=3D3Dslacpubs&col=3D3Dbabarweb&qt=3D3Dlsst&chars= et=3D3Diso=3D
-8859-1&qc=3D3Dslacweb+todays+ssrlweb+slacpubs+babarweb

Then choose "LSST for SDSC". This is a powerpoint presentation about =
=3D

the project that contains some information on the computing =3D requirements.

Problems with Oracle: What is the maximum number of partitions for a =
=3D

database? Will hierarchical file management systems does it work with? =
=3D

What if that system needs to be extende?. Is Oracle's one-cluster hence =
=3D

one-architecture technology right for the project? Does Oracle RAC tie =
=3D

you to a single vendor? Can RAC's communicate with other RAC's? Does =
=3D

anyone think this will be done using RAID10.

I'm not sure how much of the data will be online annd how much will be =
=3D

nearline storage. =3D20

Ian Macgregor
Stanford Linear Accelerator Center
ian_at_slac.stanford.edu =3D20

 =3D20

=3D20

-----Original Message-----
From: oracle-l-bounce_at_freelists.org =3D
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of =3D Jared.Still_at_radisys.com
Sent: Wednesday, September 08, 2004 9:08 AM To: oracle-l_at_freelists.org
Subject: How to store 50 Terabytes per day?

This quote appears in the following article:=3D20 http://www.computerworld.com/hardwaretopics/storage/story/0,10801,95694,0=
=3D

0.html?nas=3D3DDM-95694
" When it's in operation in 2011 at a site still to be determined, the =
=3D

telescope being built for the LSST project will collect data at a rate =
=3D

of about 6GB (equivalent to one DVD) per 10 seconds, generating many =3D petabytes of data over time. One petabyte equals roughly 100 times the =
=3D

printed contents of the Library of Congress. The LSST project "pushes =
=3D

forward database technology dramatically," says Philip Pinto, a physics =
=3D

professor at Steward Observatory at the University of Arizona and a =3D member of the LSST project's board of directors. "The LSST database will =
=3D

probably be the largest known nonproprietary database in the = world."=3D20
So if you were faced with the task of storing 50 Terabytes per day, what =
=3D

kind of architecture would it require?
Do you think Oracle would hold up with a transaction rate of 600 =3D Megabytes per second?
The architecture of such a beast could drive out some interesting =3D developments for more general use.
Jared

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