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Hi Yvan, For now, it's gcc 4.8 which offer higher C++11 support: https://gcc.gnu.org/projects/cxx0x.html Do you know if it's possible to install it easily on SL6? I think it would cover our need. Thanks, Fabrice On 01/16/2015 04:34 AM, Yvan Calas wrote: > Hi, > >> On 15 Jan 2015, at 00:16, Fabrice Jammes <[log in to unmask]> wrote: >> >> Here's what Qserv team would like to have on the cluster, in addition to what we have defined previously: >> >> - Scientific Linux on all node, in order to get C++11 support > Do you need SL7 only because of C++11, or is there any other reason? Is it possible to have full C++11 support on SL6 nodes actually? > > As I already told you, it might take time to install SL7 on servers at CC-IN2P3 (probably 2 months or more). > >> - 10TB shared storage available for all nodes and able to support a large amount of io during data-loading > The features of the new Dell machines are as follow: > > - DELL PowerEdge R620 > + 2 x Processors Intel Xeon E5-2603v2 1.80 Ghz 4 cores, 10 Mo cache, 6.4 GT/s , 80W > + RAM: 16 Go DDR-3 1600MHz (2x8Go) > + 10 x 1 TB disk Nearline SAS 6 Gbps 7200 Tpm 2,5" - hotplug > + 1 x RAID card H710p with 1 GB nvram > + 1 x 1 GbE with 4 ports Broadcom® 5720 Base-T card > + 1 x iDRAC 7 Enterprise card > + redundant power supply > >> and some questions: >> >> - what will be the disk architecture (which kind of RAID, or something else, or nothing?) > Since there is 10TB on each server, we plan to configure them in RAID-6 (2 parity disks - 7.4 TB available), or in RAID-5 (one parity disk - 8.4TB available) in you need more space on each node. If you are thinking of another better RAID configuration for qserv, please let us know ;) > > Note that we plan to install the 25 first machines int the computing center at the beginning of week 5 (26-27/01/2015). > >> - we don't know a lot about Puppet and would like to know which kind of feature it offers (system monitoring, service restart, ...)? > qserv admins at CC-IN2P3 (mainly myself) will write a puppet module in order to: > > - deploy the qserv software automatically, > - tune the OS and qserv parameters. > > Moreover, since the soft will run as qserv user (as it was the case last year on the 300+ nodes), I guess that you will be able to restart the service, change qserv configuration files if needed, etc. using sudo. > > The monitoring will be based on Nagios (probes to define and write) and collectd/smurf mainly. However plots generated by smurf will be only accessible from inside CC-IN2P3. If some extra monitoring is needed, we will deploy it. > > >> Would it be possible to talk to a Puppet/monitoring expert when these kind of questions occurs? > I am not an expert of puppet, but I can try to answer to all of your questions ;) If I don't know the answer, I will ask to Mattieu, and if really needed you can contact him directly. > > Cheers, > > Yvan > > > --- > Yvan Calas > CC-IN2P3 -- Storage Group > 21 Avenue Pierre de Coubertin > CS70202 > F-69627 Villeurbanne Cedex > Tel: +33 4 72 69 41 73 > ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the QSERV-L list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=QSERV-L&A=1