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2015: Late summer update

Quick summary: new server room power supplies, more compute nodes and new home directory servers

Having reached the end of the summer vacation, here's an update on Maths research computing news:

  • New server room power supplies: the Huxley/Blackett electrical risers project has finally been completed and the Maths server room is no longer on a temporary power supply. Following on from the riser project, an additional project to provide dual power power supplies to the Maths server server room was completed on Monday September 14th. This provides two separate incoming supplies for redundancy along with an automatic transfer switch; normally both supplies are available but if one should fail, the switch will automatically switch over to the other supply to maintain power to the server room.

    Eventually the cooling systems will also be fed from this dual power supply although at present they are still on a temporary supply.

  • more compute nodes: the HP C7000 blade enclosure accommodating the 10 blade servers mablad01-10 inclusive in the Maths compute cluster can contain up to 16 server blades but owing to the cost of these blades, only 10 were fitted originally and there have been 6 empty slots. In July, 6 second-hand server blades were purchased and these emply slots have been filled with mablad11-16. These are identical to the original mablad01-10 blades but have faster (albeit a little smaller) system disks; currently these new blades do not have scratch disks fitted - these will be added at a later date.

  • new home cluster directory servers: a new dedicated home directory server was added to the Maths compute cluster in August to provide much more storage with faster read/write access than is provided by ICNFS. This server is appropriately named clustor and is backed up the identical clustor-backup server.More details...

Older news items:

May 2nd, 2015: Spring update 2
April 26th, 2015: Spring update
November 11th, 2014: Autumn update
September 17th, 2014: Summer update 2
July 17th, 2014: Summer update
March 15th, 2014: Spring update
November 2nd, 2013: Summer update
May 24th, 2013: Spring update
January 23rd, 2013: Happy New Year!
November 22nd, 2012: No news is good news...
November 17th, 2011: A revamp for the Maths SSH gateways
September 7th, 2011: Failed systems under repair
August 14th, 2011: Introducing calculus, a new NFS home directory server for research users
July 19th, 2011: a new staging server for the compute cluster
July 19th, 2011: A new Matlab queue and improved queue documentation
June 30th, 2011: Updated laptop backup scripts
June 18th, 2011: More storage for the silo...
June 16th, 2011: Yet more storage for the SCAN...
June 10th, 2011: 3 new nodes added to the Maths compute cluster
May 21st, 2011: Announcing SCAN large storage and subversion (SVN) servers
May 26th, 2011: Reporting missing scratch disk on macomp01
May 21st, 2011: Announcing completion of silo upgrades
May 16th, 2011: Announcing upgrades for silo
April 14th, 2011: Goodbye SCAN 3, hello SCAN 4
March 26th, 2011: quickstart guide to using the Torque/Maui cluster job queueing system
March 9th, 2011: automatic laptop backup/sync service, new collaboration systems launched
May 20th, 2010: Scratch disks are now available on all macomp and mablad compute cluster systems
March 11th, 2010: Introduing job queueing on the Fünf Gruppe compute cluster
October 16th, 2008: Introduing the Fünf Gruppe compute cluster
June 18th, 2008: German City compute farm now expanded to 22 machines
February 7th, 2008: new applications on the Linux apps server, unclutter your desktop
November 13th, 2007: aragon and cathedral now general access computers, networked Linux Matlab installation upgraded to R2007a
September 14th, 2007: Problems with sending outgoing mail for UNIX & Linux users
July 23rd, 2007: SCAN available full-time over the summer vacation, closure of Imperial's Usenet news server
May 15th, 2007: Temporary SCAN suspension, closure of the Maths Physics computer room, new research computing facilities
January 14th, 2005: Exchange mail server upgrade, spam filtering with pine and various other enhancements


Andy Thomas

Research Computing Officer,
Department of Mathematics

last updated: 14.09.2015