Reprints from my posting to SAN-Tech Mailing List and ...

2012/04/10

[san-tech][03518] "MySQL at Twitter", April 9, 2012: Twitter: MySQL拡張をオープンソース化 (Optimize MySQL for SSD-based machines等)

Date: Tue, 10 Apr 2012 16:31:12 +0900
-------------------------------------------------
Twitterが社内で使用している My SQL拡張をオープンソース化しました;

"MySQL at Twitter"
 April 9, 2012, Twitter Engineering Blog
  http://engineering.twitter.com/2012/04/mysql-at-twitter.html
  "MySQL is the persistent storage technology behind most Twitter data:
   the interest graph, timelines, user data and the Tweets themselves.
   Due to our scale, we push MySQL a lot further than most companies.
   ... we have decided to open source our MySQL work on GitHub under
   the BSD New license. ... Some of the work we’ve done includes:"

*)Add additional status variables, particularly from the internals of InnoDB
*)Optimize memory allocation on large NUMA systems
*)Reduce unnecessary work through improved server-side statement
  timeout support
*)Export and restore InnoDB buffer pool in using a safe and lightweight method
*)Optimize MySQL for SSD-based machines, including page-flushing behavior
  and reduction in writes to disk to improve lifespan

Twitter MySQL wiki
  https://github.com/twitter/mysql/wiki
twitter/mysql, GitHub
  https://github.com/twitter/mysql

[san-tech][03517] Re: "The Magellan Report on Cloud Computing for Science", Dec 2011 (Re: Magellan, US DOE Cloud Project)

Date: Tue, 10 Apr 2012 15:59:25 +0900
-------------------------------------------------
2012年 3月 27, 28日に開催された DOE Advanced Scientific Computing Advisory
Committee(ASCAC) Meetingでの発表資料です (44 Pages):

"Final Report on Magellan and Update on Advanced Networking Initiative"
 Kathy Yelick
 Associate Laboratory Director for Computing Sciences Lawrence Berkeley
 National Laboratory
 Professor of EECS, UC Berkeley
  http://science.energy.gov/~/media/ascr/ascac/pdf/meetings/Mar12/ANI-Magellan-ASCAC12.pdf

[san-tech][03516] "Whamcloud and EMC Collaborate on PLFS and Lustre Integration", April 9, 2012 & Lustre 2.2, March 15, 2012

Date: Tue, 10 Apr 2012 11:34:42 +0900
-------------------------------------------------
2012/04/15
"Interview: EMC Speeds Lustre Integration with Whamcloud"
 04.13.2012, insideHPC.com
  http://insidehpc.com/2012/04/13/interview-emc-speeds-lustre-integration-with-whamcloud/
  "To get the full story, I caught up with Percy Tzelnic from EMC's CTO
   Office and the SVP Fast Data Group."
-------------------------------------------------
ちょっと驚き:

"Press Release: Whamcloud and EMC Collaborate on PLFS and Lustre Integration"
 April 9, 2012
  http://www.whamcloud.com/news/whamcloud-and-emc-collaborate-on-plfs-and-lustre-integration/

  "... The relationship between the two companies began over a year ago
   and promotes the open source availability of Lustre. Whamcloud and EMC,
   a fellow member of the OpenSFS consortium, are extending their
   collaboration for an additional year.

   Whamcloud and EMC will continue working together to provide deeper
   integration between the Parallel Log-structured File System (PLFS)
   and Lustre. ..."

2012/04/09

[san-tech][03515] Oak Ridge HPC Operational Assessment Report, CY 2011, February 2012

Date: Mon, 09 Apr 2012 13:58:42 +0900
-------------------------------------------------
Oak Ridge Leadership Computing Facilityの CY 2011 (2011/01/01-12/31)
Operational Assessment Report (OAR) です:

"High Performance Computing Facility Operational Assessment,
 CY 2011 Oak Ridge Leadership Computing Facility"
 February 2012, 89 Page
 U.S. Department of Energy, Office of Science
  http://www.osti.gov/bridge/product.biblio.jsp?osti_id=1036210

2012/04/06

[san-tech][03513] Slide: 2012 High Performance Linux for Wall Street (April 2, 2012), Arista 7124FX Application Switch

Date: Fri, 06 Apr 2012 13:20:42 +0900
-------------------------------------------------
2012年 4月 2日に開催された

2012 High Performance Linux for Wall Street, April 2, 2012
  http://www.flaggmgmt.com/linux/2012ConferenceProgram.html
Conference Program
  http://www.flaggmgmt.com/linux/2012ConferenceProgram.html
  http://www.flaggmgmt.com/linux/12HPCLinuxattendbro.pdf

の講演資料の一部が公開されています:

2012/04/01

[san-tech][03502] US Gov. $200M Big Data R&D Initiative, March 29, 2012 & IPA報告書

Date: Sun, 01 Apr 2012 10:49:35 +0900
-------------------------------------------------
2012/04/18

"SDSC Announces 'Center of Excellence' for Predictive Analytics"
 April 17, 2012, UCSD News Center
  http://ucsdnews.ucsd.edu/pressreleases/sdsc_announces_center_of_excellence_for_predictive_analytics/

 PACE to Bridge Gap Between Academia, Industry, and Government
  "... is launching a new "center of excellence" aimed at leveraging
   SDSC's data-intensive expertise and resources to help create
   the next generation of data researchers by leading a collaborative,
   nationwide education and training effort among academia, industry,
   and government.

   SDSC is providing seed funding for the program, called PACE
   for Predictive Analytics Center of Excellence. ..."
.....
  "While education and training initiatives are a large part of PACE,
   the project will also be open to collaborations and projects
   with industry and government, especially using Gordon, a unique,
   data-intensive supercomputer recently introduced by SDSC
   and which currently ranks among the 50 fastest supercomputers
   in the world."
.....
Federal Focus on Big Data
  "SDSC's PACE program comes as the administration's Office of Science
   and Technology Policy (OSTP) last month announced $200 million in
   funding for new investments in big data research and development
   projects with the announcement of its Big Data initiative"

PACE (Predictive Analytics Center of Excellence)
  http://pace.sdsc.edu/
-----
[san-tech][03521]"Six Big Name Schools with Big Data Programs", April 10, 2012, Datanami (Re: Stanford Online Graduate Certificate in Mining Massive Data Sets)
  Date: Wed, 11 Apr 2012 11:03:29 +0900 
-------------------------------------------------
2012/04/06

"7 Big Winners in the U.S. Big Data Drive"
 April 05, 2012, Datanami
  http://www.datanami.com/datanami/2012-04-05/7_big_winners_in_u.s._big_data_drive.html

#1 DARPA XDATA Program
#2 The Scalable Data Management, Analysis, and Visualization (SDAV) Institute
#3 An Atmospheric Radiation Measurement (ARM) for Climate Research
#4 Big Data for Earth System Science
#5 Department of Homeland Security
   & Center for Excellence on Visualization and Data Analytics (CVADA)
#6 Big Data for the CDC
#7 The Machine Reading Program, DARPA

-------------------------------------------------
2012年 3月 29日に、米国オバマ政権から $200 Million規模の Big Data
Research and Development Initiativeが発表されました:

Press Video (116:36):
"Challenges and Opportunities in Big Data"
 Thursday, March 29, 2012, from 2-3:45 pm ET
"NSF Leads Federal Efforts In Big Data", March 29, 2012
 All Images (真ん中あたり)
  http://www.nsf.gov/news/news_images.jsp?cntn_id=123607
  "Broadcast of OSTP-led federal government big data rollout
   March 29, 2012, in the AAAS Auditorium in Washington, DC"
"Video from Thursday's Big Data R&D Initiative Launch Posted"
 March 31st, 2012, CCC Blog
  http://www.cccblog.org/2012/03/31/video-from-thursdays-big-data-rd-initiative-launch-posted/
※解説付き

Press Release:
"OBAMA ADMINISTRATION UNVEILS "BIG DATA" INITIATIVE:
 ANNOUNCES $200 MILLION IN NEW R&D INVESTMENTS"
 March 29, 2012
 Office of Science and Technology Policy (OSTP)
 Executive Office of the President
 The White House
  http://www.whitehouse.gov/sites/default/files/microsites/ostp/big_data_press_release_final_2.pdf

2012/03/30

[san-tech][03500] Morphlabs Launches First All SSD Cloud Platform, March 26, 2012

Date: Fri, 30 Mar 2012 11:38:21 +0900
-------------------------------------------------
Morphlabsから All SSD Cloud Platformがアナウンスされました:

"Morphlabs Launches First All Solid State Drive (SSD) Cloud Platform
 based on Dell Technology"
 March 26, 2012
  http://www.morphlabs.com/news/morphlabs-launches-first-all-solid-state-drive-ssd-cloud-platform-based-on-dell-technology/

  "Morphlabs, the leader in converged Dynamic Infrastructure Services
   for the enterprise, today announced the first end-to-end SSD cloud
   platform for data centers, service providers and global enterprise
   customers. Morphlabs' mCloud Data Center Unit (DCU) will be powered
   by the Dell PowerEdge C portfolio, the hyperscale server line
   developed by the Dell Data Center Solutions (DCS) team"

2012/03/29

[san-tech][03498] Slide: OpenFabrics User and Developer Workshop (Mar. 25-28, 2012)

Date: Thu, 29 Mar 2012 10:41:38 +0900
--------------------------------------------------
2012年 3月 25~28日に開催された

OpenFabrics User and Developer Workshop, March 25-28, 2012
  https://www.openfabrics.org/press-room/ofa-workshop.html
2012 OFA User and Developer Workshop Agenda
  https://www.openfabrics.org/images/docs/PR/schedule.pdf

の Slideが公開されています:

2012/03/28

[san-tech][03496] FINAL PROJECT REPORT: "Recovery Act: SeaMicro Volume Server Power Reduction Research Development", 03/22/2012

Date: Wed, 28 Mar 2012 19:14:07 +0900
--------------------------------------------------
オバマ政権の景気刺激策 (The American Recovery and Reinvestment Act of 2009,
ARRA 2009) の一環として DOEから $9.3Mの投資を受けた SeaMicroの報告書です:

"Recovery Act: SeaMicro Volume Server Power Reduction Research Development"
 FINAL PROJECT REPORT (29 pages)
 Andrew Fetter (SeaMicro, Inc.), et al.
 Publication Date: 2012 Mar 22
  http://www.osti.gov/bridge/product.biblio.jsp?osti_id=1036957

[san-tech][03495] Re: $1,5B Data Center (National Security Agency: NSA)

Date: Wed, 28 Mar 2012 16:04:26 +0900
--------------------------------------------------
以前紹介した、NSA (National Security Agency) データセンターに関しての記事です:

"The NSA Is Building the Country's Biggest Spy Center (Watch What You Say)"
 March 15, 2012, Wired.com
  http://www.wired.com/threatlevel/2012/03/ff_nsadatacenter/all/1

[san-tech][03494] DISC Archiving Systems: New Blu-ray Archival Storage Library, 26 March 2012

Date: Wed, 28 Mar 2012 13:29:02 +0900
--------------------------------------------------
Blu-ray Archival Storage Libraryのアナウンスです:

"DISC Archiving Systems Announces New ArXtor Series of Blu-ray Archival
 Storage Libraries"
 Next generation of Blu-ray archival storage libraries including
 iSCSI connectivity and Purpose-Built Virtual Appliance options
 to support industry leading Middleware archival tiered-storage
 management solutions
 26 March 2012
  http://www.disc-group.com/company/news/disc-introduces-new-arxtor-series/

  "DISC Archiving Systems B.V. ("DISC"), market leader in professional
   data archiving, is proud to announce the New ArXtor Series, the next
   generation of Blu-ray Archival Storage Library Solutions."

2012/03/27

[san-tech][03493] "Btrfs: The Swiss Army Knife of Storage, February 2012, USENIX ;login:

Date: Tue, 27 Mar 2012 21:10:03 +0900
--------------------------------------------------
2012/06/08
Btrfs開発の中心人物の Chris Masonさんが、 Oracleを去り 2012年 6月 11日
から Fusion-ioに移られるそうです。

From: Chris Mason <chris.mason <at> oracle.com>
Subject: Leaving Oracle
Newsgroups: gmane.linux.file-systems, gmane.comp.file-systems.btrfs
Date: 2012-06-07 01:04:48 GMT (1 day and 54 minutes ago)
  http://article.gmane.org/gmane.linux.file-systems/65090/
..,,,
> Oracle has been a fantastic place to work, and I really appreciate their
> support for my projects.  But, I've decided to take a new position at
> Fusion-io.  I will start the new job on Monday, June 11.
>
> From a Btrfs point of view, very little will change.  I'll still
> maintain Btrfs and will continue all of my Btrfs development in the
> open.  Oracle will still use Btrfs in their Oracle Linux products, and
> I'll work with all of the distros using Btrfs in production.
>
> Fusion-io really believes in open source, and I'm excited to help
> them shape the future of high performance storage.
.....
とのことです。

--------------------------------------------------
USENIX ;login: (February 2012) の Btrfs解説記事が公開されています:

"Btrfs: The Swiss Army Knife of Storage"
 Josef Bacik, Lead developer on Btrfs for Red Hat
 ;login: issue: February 2012
  https://www.usenix.org/publications/login/february-2012/btrfs-swiss-army-knife-storage

[san-tech][03492] Paper: Virtual Execution Environments 2012, (March 3 - 4 2012)

Date: Tue, 27 Mar 2012 20:00:58 +0900
--------------------------------------------------
2012年 3月 3, 4日、ASPLOS 2012のワークショップとして開催された

Eighth Annual International Conference on
Virtual Execution Environments (VEE 2012), March 3 - 4 2012
  http://www.cl.cam.ac.uk/research/srg/netos/vee_2012/programme.html

の Paperが上記 Webページで公開されています。

[san-tech][03491] Cleversafe's New Models: Highest Reliability, Lowest Cost, Lowest Power Consuming, March 26, 2012

Date: Tue, 27 Mar 2012 19:34:27 +0900
--------------------------------------------------
Object-Based Access分散ストレージメーカーの Cleversafeから低価格ラインが
アナウンスされました:

"Cleversafe Announces New Slicestor Models Propelling Its Limitless
 Data Storage System Well Ahead of the Industry in Power Efficiency
 and Reliability"
 Cleversafe's Innovative Object-Based Dispersed Storage Technology
 Combined with Its New Slicestor Models Delivers the Highest Reliability,
 Lowest Cost, Lowest Power Consuming Big Data Storage Solution Available
 March 26, 2012
  http://www.cleversafe.com/news-reviews/press-releases/157-cleversafe-announces-new-slicestor-models-propelling-its-limitless-data-storage-system-well-ahead-of-the-industry-in-power-efficiency-and-reliability

2012/03/25

[san-tech][03489] ASHRAE Whitepaper - Liquid Cooling Guidelines (2011/09)

Date: Sun, 25 Mar 2012 09:20:42 +0900
--------------------------------------------------
2012/07/19
Coming Soon ...
"The previous Thermal Guidelines (Thermal & Liquid Cooling) have been
 remove due to the anticipated release of the 3rd Edition of
 the Thermal Guidelines which will be published soon.  Please check back
 to the site for the latest updates."
 July 6, 2012, ASHRAE Technical Committee 9.9
  http://tc99.ashraetcs.org/

--------------------------------------------------
2011年 9月に、ASHRAE (American Society of Heating, Refrigerating and
Air-Conditioning Engineers) から、液冷に関する White Paperが公開されて
ました:

"ASHRAE Introduces New Liquid Cooled Datacom Environmental Classes"
 Sep 27, 2011
  http://www.ashrae.org/news/2011/ashrae-introduces-new-liquid-cooled-datacom-environmental-classes

  ""2011 Thermal Guidelines for Liquid Cooled Data Processing Environments"
   creates data center classes for liquid cooling that can enable fulltime
   economizers for a number of applications in many climates, according
   to according to Don Beaty, chair of the Publications Subcommittee of
   ASHRAE's Technical Committee (TC) 9.9, Mission Critical Facilities,
   Technology Spaces and Electronic Equipment."
.....
  "This whitepaper follows an earlier whitepaper released in May 2011,
   "2011 Thermal Guidelines for Data Processing Environments - Expanded
   Data Center Classes and Usage Guidance," which addresses air cooling
   in data centers and created new data center environmental classes
   which expanded the opportunity for chiller-less data centers
   (fulltime economizers)."

[san-tech][03488] Slide: Green Grid Forum 2012 (March 6-7, 2012) & Free Cooling Map Update

Date: Sun, 25 Mar 2012 08:31:46 +0900
--------------------------------------------------
2012年 3月 6~7日に開催された

The Green Grid Forum 2012 and Member Meeting, March 6-7, 2012
  http://www.thegreengrid.org/events/TGGforum-2012.aspx

の一般向け資料 (10編) が公開されています。

Program:
  http://www.thegreengrid.org/events/~/media/Forum2012/TGGForum2012eProgram.pdf
Library & Tools
  http://www.thegreengrid.org/library-and-tools.aspx

  "2012 Forum Data ...."
   General
です。例えば

2012/03/22

[san-tech][03487] Xyratex SP-2584: Up to 2PB in a single rack (3.5" 3TB SAS x 84 x 8)

Date: Thu, 22 Mar 2012 11:24:54 +0900
--------------------------------------------------
Xyratexから、1ラックで 2PB (3.5インチ 3TB SAS) 搭載可能なシステムが
OEM向けに発表されました。

"Xyratex Announces OneStor 2584"
 March 21, 2012
  http://xyratex.com/Company/News/Detail.aspx?ID=320

5U筐体に 3.5インチ 3TB SASを 84台 (252TB)、8筐体 (40U) で 2,016TBです。

[san-tech][03486] Re: DARPA CLIQR Quest (Cash for Locating and Identifying Quick Response codes (CLIQR) Quest) Challenge

Date: Thu, 22 Mar 2012 08:19:59 +0900
--------------------------------------------------
チャレンジの結果です。解説記事から

"DARPA Challenge Doesn't Go Viral On Twitter"
 Agency ends two-week QR-related contest--promoted only through
 Twitter, Facebook, and other social networks--without anyone
 finding all 7 posters with special codes.
 March 19, 2012, InformationWeek
  http://www.informationweek.com/news/government/enterprise-apps/232602820

  "The Defense Advanced Research Projects Agency (DARPA) recently
   ended its CLIQR challenge without anyone successfully completing
   the contest's full task, giving the agency new insights into
   the effectiveness of social networks versus more traditional
   forms of online communications and media outreach to spread
   information."
.....
  "The idea behind the challenge was to get people to respond quickly
   to simulate how citizens might mobilize for aid and relief during
   a time of crisis, according to the challenge's website ..."
.....
  "The key to the challenge was that DARPA did not engage in its
   usual outreach strategy ... Instead, it used Twitter to announce
   the challenge and encouraged participants to use their own social
   networks as well, such as Facebook, to find the posters."

2012/03/21

[san-tech][03485] Re: Paper/Slide/Video: USENIX FAST '12 (Feb 14-17, 2012)

Date: Wed, 21 Mar 2012 15:37:13 +0900
--------------------------------------------------
ちょっと間が開きましたが、StorageMojo恒例の FAST Best Three Paperです:
(FAST URLは上から Abstract, Full Paper(一部 Update版), Slide, Video)

-----
"Optimizing NAND Flash-Based SSDs via Retention Relaxation"
 Ren-Shuo Liu and Chia-Lin Yang, National Taiwan University;
 Wei Wu, Intel Corporation
  http://static.usenix.org/event/fast12/tech/techAbstracts.html#Liu
  http://static.usenix.org/event/fast12/tech/full_papers/Liu.pdf
  http://static.usenix.org/event/fast12/tech/slides/Liu.pdf
  https://www.usenix.org/conference/fast12/optimizing-nand-flash-based-ssds-retention-relaxation
"Doubling flash write performance through retention relaxation"
 27 February, 2012, StorageMojo
  http://storagemojo.com/2012/02/27/doubling-flash-write-performance-through-retention-relaxation/

-----
"Adding Advanced Storage Controller Functionality via Low-Overhead Virtualization"
 Muli Ben-Yehuda, Michael Factor, Eran Rom, and Avishay Traeger, IBM Research-Haifa;
 Eran Borovik and Ben-Ami Yassour
  http://static.usenix.org/event/fast12/tech/techAbstracts.html#Ben-Yehuda
  http://static.usenix.org/event/fast12/tech/full_papers/Ben-Yehuda.pdf
*)Updated full paper, 2/2/12:
  http://static.usenix.org/event/fast12/tech/full_papers/Ben-Yehuda2-2-12.pdf
  http://static.usenix.org/event/fast12/tech/slides/Ben-Yehuda.pdf
  https://www.usenix.org/conference/fast12/adding-advanced-storage-controller-functionality-low-overhead-virtualization
"Virtualizing storage controllers"
 28 February, 2012, StorageMojo
  http://storagemojo.com/2012/02/28/virtualizing-storage-controllers/

-----
"The Bleak Future of NAND Flash Memory"
 Laura M. Grupp, University of California, San Diego;
 John D. Davis, Microsoft Research, Mountain View;
 Steven Swanson, University of California, San Diego
  http://static.usenix.org/event/fast12/tech/techAbstracts.html#Grupp
  http://static.usenix.org/event/fast12/tech/full_papers/Grupp.pdf
*)Updated full paper, 2/6/12:
  http://static.usenix.org/event/fast12/tech/full_papers/Grupp2-6-12.pdf
*)Updated full paper, 2/8/12:
  http://static.usenix.org/event/fast12/tech/full_papers/Grupp2-8-12.pdf
  http://static.usenix.org/event/fast12/tech/slides/Grupp.pdf
  https://www.usenix.org/conference/fast12/bleak-future-nand-flash-memory
"NAND's dimming future"
 29 February, 2012, StorageMojo
  http://storagemojo.com/2012/02/29/nands-dimming-future/

2012/03/20

[san-tech][03481] "The New iPad - Generation 3 Teardown and Apple A5X IC Analysis, 16th March 2012, UBM TechInsights

Date: Tue, 20 Mar 2012 08:15:58 +0900
--------------------------------------------------
New iPad - Generation 3の解体分析です。

"The New iPad - Generation 3 Teardown and Apple A5X IC Analysis"
 16th March 2012, UBM TechInsights
  http://ubmtechinsights.com/teardowns/new-apple-ipad-gen3-teardown-analysis/
※主としてデバイスの解析です。


こちらは姉妹サイト EETimesの記事です。
画像は基本的に同じですがスライド形式です (少々うざいですが):
"Teardown slideshow: Inside the third-generation iPad"
 3/16/2012, EETimes (18 pages)
  http://www.eetimes.com/electronics-news/4238192/Teardown-slideshow--Inside-the-third-generation-iPad