<!-- keep this as a security measure: * Set ALLOWTOPICCHANGE = Main.TWikiAdminGroup,Main.LCGAdminGroup * Set ALLOWTOPICRENAME = Main.TWikiAdminGroup,Main.LCGAdminGroup #uncomment this if you want the page only be viewable by the internal people #* Set ALLOWTOPICVIEW = Main.TWikiAdminGroup,Main.LCGAdminGroup --> ---+ Swiss WLCG Operations Meeting on 2011-09-13 * *Date and time*: Tuesday at 9:30 * *Place*: EVO, password: chipp * *External link / EVO*: http://evo.caltech.edu/evoNext/koala.jnlp?meeting=MsMiMI282BDBD29892Dt9s ---++ Agenda Status * CSCS: * Update of the recent issues with Lustre and Cream. * ARC Accounting and BDII. * Status of EMI1 upgrade * Migration to GPFS * PSI (reports Fabio): * We suffer almost every week of 1TB failed disks, it takes time to replace the disk / check the ZFS rebuild / apply the Oracle/DHL process and bureaucracy for the new disk. * We're investigating a new 200TB raw storage scalable in 600TB raw in 3 years, we've invited several vendors to propose an offer, so far I've discovered these products, subdivided for RAID technology: * HW RAID + Scientific Linux + ext4/xfs * [[http://www.nexsan.com/products/e60/index.aspx][Nexsan 60 SATA disks 4u]]. Invited to present on next Tuesday. * [[http://www.netapp.com/us/products/storage-systems/e5400/][NetApp E5400, 60 SATA disks 4u]]. Offer on next Monday. * HP, they propose [[http://h10010.www1.hp.com/wwpc/us/en/sm/WF06b/12169-304616-3930449-3930449-3930449-4118659-4209092-4209005.html][P4500 G2]], but by using 2TB disks, I want 3TB. * ZFS RAID-Z2 + Solaris * [[http://www.supermicro.com/products/chassis/4U/847/SC847E26-RJBOD1.cfm][SuperMicro, 45 * Constellation ES.2, 3TB SAS2 disks * 4u]], ~ 13k CHF from [[http://www.happyware.de/][Happyware]], but backplane is a single point of failure + not hot swappable SAS IO module, so it's cheap but present potential risks, Users has to accept them. * [[http://www.dataonstorage.com/dataon-products/6g-sas-jbod/dns-1660-4u-60-bay-6g-35inch-sassata-jbod.html][DataOn, 60 * Constellation ES.2, 3TB SAS2 disks * 4u]]: this one is interesting because can be installed with its [[http://www.dataonstorage.com/dataon-products/storage-accessory/server-head.html][server head]] with [[http://openindiana.org/][OpenIndiana]] + [[http://hub.opensolaris.org/bin/view/Project+mpxio/][Multipath MPxIO driver]] + 2 independent [[http://www.lsi.com/channel/products/storagecomponents/Pages/LSISAS9200-8e.aspx][dual SAS HBA LSI 9200-8e]] + ZFS. Attached by SAS to the storage we can use the [[http://www.dataonstorage.com/dataon-products/storage-accessory/server-head.html][DataOn server head]]. The JBOD full of 3TB disks is ~ 33k CHF from [[http://www.zstor.de/][ZSTOR]]. * So far I've a preference for the DataOn solution but there are potential high risk because of the usage of OpenIndiana, I don't have operational experiences to report: conversely the DataOn product itself seems well accepted from the community. Officially DataOn comes with [[http://nexenta.com/corp/][NexentaStor]]. * UNIBE (reports Gianfranco): * Stable operations, ATLAS production and analysis. Also some SMSCG activity * Running stably with CVMFS since a few months now * Had to recover DPM install because of EPEL conflict (operations not affected) * Upgrade to ARC1 postponed due to Lustre bugs * Starting now with KVM * UNIGE (reports Szymon): * Daily operations very stable and quiet, nothing to report. * A major upgrade of storage going ahead: * IBM x3630 M3 with 12 x 3 TB of disk for data + two small disks for the OS * hardware RAID, we will do RAID 6 with cold spares, 27.5 TB net/machine * we are getting 10 machines, only 8 can be powered up soon * to stay in fixed kW budget we will retire 12 login machines, in operation since 2005 * most of the new disk servers will be added to our Storage Element Other topics * CernVMFS updates (the requirements meeting is a different meeting) * Convenience of the actual Date/Time for this meetings AOB ---++ Attendants * CSCS: Pablo, Miguel * CMS: Fabio * ATLAS: Gianfranco * LHCb:Roland * EGI: ---++ Action items * Item1
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Topic revision: r18 - 2011-09-18 - FabioMartinelli
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