Ruben.Gaspar.Aparicio @ Cern.ch May 2014
Ruben.Gaspar.Aparicio @ cern.chCERN, IT DepartmentUKOUG, Birmingham 28th May 2014Proton Antiproton collision leading to discovery of W and Z particles. 1984 Nobel Prize: Carlo Rubbia & Simon van der Meer.
About me Joined CERN in 2000 to design andimplement a J2EE application for acceleratorcontrols Joined CERN IT Databases group on 2007 From Oracle 9i on Project leader of the backup and recoveryservice till January 2013 Project leader of the storage infrastructure Project leader of the DBaaS service3
Agenda CERN introCERN databases basic descriptionStorage evolution using NetappCaching technologies Data motionSnapshotsClonning in Oracle12cBackup to diskdirectNFSMonitoring Flash cacheFlash poolIn-house toolsNetapp toolsConclusions4
Agenda CERN introCERN databases basic descriptionStorage evolution using NetappCaching technologies Data motionSnapshotsClonning in Oracle12cBackup to diskdirectNFSMonitoring Flash cacheFlash poolIn-house toolsNetapp toolsConclusions5
CERN European Organization for Nuclear Research founded in 1954Membership: 21 Member States 7 Observers60 Non-member States collaborate with CERN2400 staff members work at CERN as personnel 10000researchers from institutes world-wide
LHC, Experiments, Physics Large Hadron Collider (LHC) World’s largest and most powerfulparticle accelerator27km ring of superconductingmagnetsCurrently undergoing upgrades,restart in 2015The products of particle collisions arecaptured by complex detectors andanalyzed by software in theexperiments dedicated to LHCHiggs boson discovered!The Nobel Prize in Physics 2013 was awarded jointly to François Englert and Peter W. Higgs"for the theoretical discovery of a mechanism that contributes to our understanding of theorigin of mass of subatomic particles, and which recently was confirmed through the discoveryof the predicted fundamental particle, by the ATLAS and CMS experiments at CERN's LargeHadron Collider"
WLCG The world’s largest scientific computing gridMore than 100 Petabytesof data stored and analysed.Increasing: 20 Petabytes/yearCPU: over 250K coresJobs: 2M per day160 computer centres in 35countriesMore than 8000 physicists withreal-time access to LHC data8
Agenda CERN introCERN databases basic descriptionStorage evolution using NetappCaching technologies Data motionSnapshotsClonning in Oracle12cBackup to diskdirectNFSMonitoring Flash cacheFlash poolIn-house toolsNetapp toolsConclusions9
CERN’s Databases 100 Oracle databases, most of them RAC Examples of critical production DBs: Mostly NAS storage plus some SAN with ASM 500 TB of data files for production DBs in totalLHC logging database 170 TB, expected growth up to 70 TB /year13 production experiments’ databases 10-20 TB in eachRead-only copies (Active Data Guard)But also as DBaaS, as single instances 120 MySQL Open community databases (migrating to 5.6)11 Postgresql databases (version 9.2, since September 2013)10 Oracle11g migrating towards Oracle12c multi-tenancy10
Use case: Quench Protection System Critical system for LHC operation High throughput for data storage requirement Constant load of 150k changes/s from 100k signalsWhole data set is transfered to long-term storage DB Major upgrade for LHC Run 2 (2015-2018)Query Filter InsertionAnalysis performed on both DBs16 ProjectsAround LHCRDB ArchiveLHC Logging(long-termstorage)Backup11
Quench Protection system: testsAfter two hours bufferingNominal conditionsStable constant load of 150k changes/s100 MB/s of I/O operations500 GB of data stored each dayPeak performanceExceeded 1 million value changes per second500-600 MB/s of I/O operations12
Oracle and NetApp at CERN 1982: Oracle at CERN, PDP-11, mainframe,VAX VMS, Solaris SPARC 32 and 64 bits1996: Solaris SPARC with OPS2000: Linux x86, local storage2005: Linux x86 64 / RAC / EMC and ASM 2006: Linux x86 64 / RAC / NFS / NetApp(96 databases)2011-2012: migration of all (*) databases toOracle on NetApp14
Oracle basic setupPrivate network(mtu 9000)10GbEgpn mtu 150010GbE12gbpsOracle RACdatabase at least10 file systems10GbEMount Options for Oracle files when used with NFS on NAS devices (Doc ID 359515.1)global namespace
Oracle file systemsMount pointContent/ORA/dbs0a/ {DB UNIQUE NAME}ADR (including listener) /adump log files/ORA/dbs00/ {DB UNIQUE NAME}Control File copy of online redo logs/ORA/dbs02/ {DB UNIQUE NAME}Control File archive logs (FRA)/ORA/dbs03/ {DB UNIQUE NAME}*Datafiles/ORA/dbs04/ {DB UNIQUE NAME}/ORA/dbs0X/ {DB UNIQUE NAME}*Control File copy of online redo logs blockchange tracking file spfileMore datafiles volumes if needed/CRS/dbs00/ {DB UNIQUE NAME}Voting disk/CRS/dbs02/ {DB UNIQUE NAME}Voting disk OCR/CRS/dbs00/ {DB UNIQUE NAME}Voting disk OCR* They are mounted using their own lif to ease volume movements within the cluster16
MySQL/PostgreSQL Just two file systems on both cases: databinlogs (MySQL) or WALs (PostgreSQL)For instances running on an Oracle cluster ware,care must be taken in case of server crash forMySQL instances. "InnoDB: Unable to lock ./ibdata1, error: 11" ErrorSometimes Seen With MySQL on NFS (Doc ID 1522745.1)17
Agenda CERN introCERN databases basic descriptionStorage evolution using NetappCaching technologies Data motionSnapshotsClonning in Oracle12cBackup to diskdirectNFSMonitoring Flash cacheFlash poolIn-house toolsNetapp toolsConclusions18
Netapp evolution at CERN (last 8 years)scaling upFAS3000FAS6200 & FAS8000Flash pool/cache 100% SATA disk SSD100% FC disks6gbps2gbpsDS4246DS14 mk4 FCscaling outData ONTAP 7-modeData ONTAP Cluster-Mode19
A few 7-mode conceptsclient accessThin provisioningPrivate networkFileaccessBlockaccessNFS, CIFSFC,FCoE,iSCSIRemote Lan Managerraid dp or raid4Service Processorraid.scrub.scheduleonce weeklyraid.media scrub.rateconstantlyFlexVolumeRapid RAID RecoveryreallocateMaintenance center(at least 2 spares)ded20
client accessA few C-mode conceptsPrivate networkclusterCluster interconnectnode shellCluster mgmt networksystemshellC-modeC-modecluster ring showRDB: vifmgr bcomd vldb mgmtVserver (protectedLogging files from thecontroller no longeraccessible by simple NFSexportvia Snapmirror)Global namespace21
RAC10RAC11SHOST
Consolidation21Storage islands, accessible via private network 756 controllers (FAS3000) & 2300 disks (1400TB storage) Easy management14 controllers (FAS6220) &960 disks (1660 TB storage) Difficulties finding slotsfor interventions
cluster interconnectRAC50 setupprimary switch (private network)Cvsecondary switch (private network)Cluster interconnect, using FC gbic’s fordistance longer than 5m. SFP must be from CISCO
Configuration details: disk shelves3 raid groups of 16 disks 1 SSD raid group of 18 disksno SSDenabledSSDenabled4 raid groups 16 disks, Total usable size: 135TB# ofdiskshelvesSize 5
Agenda CERN introCERN databases basic descriptionStorage evolution using NetappCaching technologies Data motionSnapshotsClonning in Oracle12cBackup to diskdirectNFSMonitoring Flash cacheFlash poolIn-house toolsNetapp toolsConclusions26
Flash CacheFlash PoolFlash cache Helps increase random IOPS on disks Warm-up effect (options flexscale.rewarm)cf operations (takeover/giveback) invalidate thecache, user initiated ones do not since ONTAP 8.1TR-3832 :Flash Cache Best Practice GuideFor databases Decide what volumes to cache:fas3240 priority onfas3240 priority set volume volname cache [reuse keep] options flexscale.lopri blocks off
Flash cache: database benchmark Inner table (3TB) where a row a block (8k). Outer table (2% ofInner table) each row contains rowid of inner tablev sysstat ‘physical reads’ Starts with db file sequential read but after a little whilechanges to db file parallel read*fas3240, 32 disks SATA 2TB, Data Ontap 8.0.1, Oracle 11gR2 160 data disksRandom Read No PAMIOPS*PAM KernelNFS (RHE5)PAM dNFSFirst run2903795382728 runSecond29001639737811 365 data disks
Flash cache: long running backups During backups SSD cache is flushedIO latency increases – hit% on PAM goes down 1%Possible solutions: Data Guardpriority set enabled components cache Large IO windows to improve sequential IO detection, possible inC-mode:vserver nfs modify -vserver vs1 -v3-tcp-max-read-size 1048576 by Luca Canali
Agenda CERN introCERN databases basic descriptionStorage evolution using NetappCaching technologies Data motionSnapshotsClonning in Oracle12cBackup to diskdirectNFSMonitoring Flash cacheFlash poolIn-house toolsNetapp toolsConclusions30
Flash pool aggregates Flash CacheFlash Pool64 bits aggregatesAggregate with snapshots, they must be deleted beforeconverting into hybrid aggregateSSD rules: minimum number and extensions depending on themodel e.g. FAS6000 9 2, 6 (with 100GB SSD)No mixed type of disks in a hybrid aggregate: just SAS SSD,FC SSD, SATA SSD. No mixed type of disks in a raid gp.You can combine different protection levels among SSD RAIDand HDD RAID, e.g. raid dp or raid4Hybrid aggregate can not be rollbackedIf SSD raid gps are not available the whole aggregate is downSSD raid gps doesn’t count in total aggregate spaceMaximum SSD size depending on model & ONTAP release(https://hwu.netapp.com/Controller/Index ).TR-4070: Flash Pool Design and Implementation Guide
Flash pool behaviour Blocks going into SSD determined by Write and Read policies.They apply to volumes or globally on whole aggregate.random overwrites, size 16Kb Sequential data is not cached. Data cannot be pinned Heat map in order to decide what stays and for how long in SSD cachereadreadhotwarmreadneutralcoldevictEviction scannerInsert into SSDoverwritewriteneutralInsert into SSDcoldevictWrite to diskEvery 60 secs &SSD consumption 75%Eviction scanner32
Flash pool: performance counters Performance counters: wafl hya per aggr (299) &wafl hya per vvol (16)Around 25% difference in anempty system:Ensures enough pre-erasedblocks to write new dataRead-ahead caching algorithms We have automated the way to query those:33
Monitoring: selecting counters Ontap 8.2: 37 objects, 1230 countersViewing the ones you are interested in from CLI can becumbersome Use a “preset”:1:2:3: rac50::* system node run -node dbnasr5041 stats show -p hybrid-vol -c -i 1 -n 334
Flash pool behaviour (II) fio (http://freecode.com/projects/fio) on rhe6.55x100GB filesExample of a random read job. Jobs run for 6h.35
Flash pool behaviour (III) Read cache warms slowerthan write cache reads costs more thanwrites, 10 factor. After 6hours: 300GB read cache 500GB write cache Stats of SSD consumption can beretrieved using: wafl hya per vvolobject, at nodeshell in diagnostic level.36
Flash pool behaviour (IV) SSD consumption: 85GB read SSD 493GB write SSD Write cache also used forreading read % SSD 100% Not much difference withthis workload between:random-read & randomread-write policies37
Test environment Testing on a private network Red Hat Enterprise Linux Server release 6.416 cores - Intel(R) Xeon(R) CPU E5-2650 0 @2.00GHz128 GB RAMOracle server single instance: 11.2.0.3Using SLOB2The following graphs were done with adataset of 1TB38
init.ora for testing with SLOB2Disable scheduler and resourcemanager. MOS 786346.1Avoid “db file parallel read” optimizationSmall db cache size to force IO on storage39
Random 4782844051453684393046234426514616040983SSD mtu1500SSD mtu9000noSSD 272564404516494425000noSSD 1843835324856Number of 7892112128Average latency (µs) - db file sequential read200001500010000471274359927751200000Equivalent to 479 HDDdb file sequential read 934203262360621679SSD mtu1500noSSD mtu150094679062SSD mtu9000noSSD 229111249105613401136324856Number of 789211212840
1TB dataset, 100% in SSD, 56 sessions, random reads41
10TB dataset, 128 sessions, random reads, disk saturation
10TB dataset, 36% in SSD, 32 sessions, random reads
Flash pool: long running backupsMonitoring database (lemonrac): 11TB 12 hours backupPlot using Perfsheet4 by Luca Canali44
Agenda CERN introCERN databases basic descriptionStorage evolution using NetappCaching technologies Data motionSnapshotsClonning in Oracle12cBackup to diskdirectNFSMonitoring Flash cacheFlash poolIn-house toolsNetapp toolsConclusions45
Vol move Powerful feature: rebalancing, interventions, whole volume granularityTransparent but watch-out on high IO (writes) volumesBased on SnapMirror technologyExample vol move command:rac50:: vol move start -vserver vs1rac50 -volumemovemetest -destination-aggregate aggr1 rac5071 -cutoverwindow 45 -cutover-attempts 3 -cutover-actiondefer on failureInitial transfer
Vol move (II) Force cutover: cutover-window will be ignored clientaccess frozen during cutover duration: Flash pool volumes will need to warm up the SSDs again Probably solved in a future Ontap releaseTo avoid interconnect traffic, logical interface (lif) should bemoved (NFSv3) to the same controller where new volume islocated pnfs (NFSv4.1) netapp implementation redirects IO load to newlocation without need of remounting.47
Vol move (III) One lif per data volume To be able to use Ontap move volume feature with noimpact on cluster interconnect switch. No need to remount on the new controller hosting thevolume. Lif can be moved, once the volume has been migrated. Interconnect just 10 gbps bandwidth (20gbps in nextgeneration)Just targeting data volumes Bug ID 540038: Failover groups do not allow specifying aport order Workaround: network interface failover create128 lifs maximum (all types) in Ontap 8.248
Oracle12c: online datafile move Very robust, even with high IO load It takes advantage of database memory buffers Works with OMF Track it at alert.log and v session longops49
Oracle12c: online datafile move (II)alter database move datafileMove was completed.50
Agenda CERN introCERN databases basic descriptionStorage evolution using NetappCaching technologies Data motionBackup and Recovery: snapshotsClonning in Oracle12cBackup to diskdirectNFSMonitoring Flash cacheFlash poolIn-house toolsNetapp toolsConclusions51
DBaaS:Backup management Same backup procedure for all RDBMSBackup workflow: sometime latersnapshotresumemysql FLUSH TABLESWITH READ LOCK;mysql FLUSH LOGS;orOracle alter databasebegin backup;OrPostgresql SELECTpg start backup(' SNAP');newsnapshotmysql UNLOCK TABLES;OrOracle alter database end backup;orPostgresql SELECTpg stop backup(),pg create restore point(' SNAP');5252
Snapshots in Oracle Storage-based technologySpeed-up backups/restores: from hours/days to secondsHandled by a plug-in on our backup and recovery solution:/etc/init.d/syscontrol --very silent -i rman backup start -maxRetries 1 -exec takesnap zapi.pl -debug -snapdbnasr0009-priv:/ORA/dbs03/PUBSTG level EXEC SNAP -i pubstg rac50lif Global namespaceExample:pubstg: 280GB size, 1 TB archivelogs/dayadcr: 24TB size, 2,5 TB archivelogs/day8secs 9secsDrawback: lack of integration with RMANOntap commands: snap create/restore Snaprestore requires licensesnapshots not available via RMAN APIBut some solutions exist: Netapp MML Proxy api, Oracle snapmanager53
Snapshots management / setup Managed by the system, with autodeletionpoliciesFrom 20% to 40%of volume size,depending on dbactivity Primary Space Management Strategydefault Connect to the lif used to mount file system As user vsadmin:Open lif’s ssh port:54
Netapp MML Proxy backup v1 Implementation of SBT APISimple configuration Backups will generate an underlying snapshot55
Netapp MML Proxy backup v1 v proxy views Restore and delete operations are commanded by environmentvariables RESTORETYPE {volume file controlvolume}DELETETYPE snapIntegration with RMAN API v proxy datafile BACKUP FUZZY YES(alter database begin/end backup being used)Though disk catalogue is in a file (should be accessible on allinstances, RAC), it is not integrated with catalogue/controlfileVersion 2, it supports Ontap C-mode.It is a freely available tool, open community support56
Oracle12c: recover snapshot RMAN Enhancements in Oracle 12c (Doc ID1534487.1)Under certain conditions no need to set db inbackup mode:- Database crash consistent at the point of the snapshot AND- Write ordering is preserved for each file within a snapshot AND- Snapshot stores the time at which a snapshot is completed57
Agenda CERN introCERN databases basic descriptionStorage evolution using NetappCaching technologies Data motionSnapshotsClonning in Oracle12cBackup to diskdirecNFSMonitoring Flash cacheFlash poolIn-house toolsNetapp toolsConclusions58
Oracle12c: multi-tenancy cloning TR-4266: NetApp Cloning Plug-in for OracleMultitenant Database 12c Patch required on 12.1.0.1 (MOS 16221044) Storage credentials stored in an Oracle wallet Check dnfs is in use and exports defined at ORACLE HOME/dbs/oranfstab Check plug-in has proper permissions Using OMF:59
Oracle12c: multi-tenancy cloning Mount and file system reference Single instance is all doneFor RAC: Replicate file system changes to open on other instancesCRS service registration/creationUndo changes when clone is destroyed60
Agenda CERN introCERN databases basic descriptionStorage evolution using NetappCaching technologies Data motionSnapshotsClonning in Oracle12cBackup to diskdirecNFSMonitoring Flash cacheFlash poolIn-house toolsNetapp toolsConclusions61
Backup architecture Custom solution: about 15k lines of code, Perl Bash Flexible: easy to adapt to new Oracle release, backup media Based on Oracle Recovery Manager (RMAN) templates Central logging Easy to extend via Perl plug-ins: snapshot, exports, RO tablespaces, We send compressed: 1 out of 4 full backups All archivelogs
Backup to disk: storage 2xFAS6240 Netapp controllers, running ONTAP 8.2.1 C-mode 24xdiskshelf DS4243 24x3TB SATA disks each (576 disks) raid dp (raid6) 1.1 PB usable space split into 8 aggregates 2xquad core 64bit Intel(R) Xeon(R) CPU E5540 @ 2.53GHz 10gbps connectivity Multipath SAS loops 3 gbps 6 gpbs maximum throughput (dual path) Flash cache 512GB per node (meta data caching)
Backup to disk: throughput (one head)data scrubbingcompression ratiocompression ratio555TB used538TB saveddue tocompressionmainly but alsodeduplication64
Backup to disk: space consumption The aim is to be as balanced as possibleamong the volumes assigned to the databaseDeduplication applied Especial verbs while backingup, e.g. durationBig files use section
Oracle12c compression Oracle 11.2.0.4, new servers (32 cores,129GB RAM)Intel(R) Xeon(R) CPU E5-2650* 0 @ 2.00GHzno-compressed ionNetapp 8.2P3392GB (devdb11)62.24GB(1h54’)89.17GB (27’30’’)73.84GB (1h01’)50.71GB ercentage saved (%)82%74.4%78.8%85.4%0%62% Oracle 12.1.0.1 new serversno-compressed ionNetapp 8.2P3376GB (devdb11upgraded to 12c)45.2GB (1h29’)64.13GB (22’)52.95GB (48’)34.17GB (5h17’)252.8GB(22’)93GB(20’)Percentage saved (%)82.1%74.6%79%86.4%0%64.5%229.2GB (tablespaceusing Oracle Crypto)57.4GB (2h45’)57.8GB (10’)58.3GB (44’’)56.7GB ercentage saved (%)74.95%74.7%74.5%75.2%0%22.7%
Agenda CERN introCERN databases basic descriptionStorage evolution using NetappCaching technologies Data motionSnapshotsClonning in Oracle12cBackup to diskdirectNFSMonitoring Flash cacheFlash poolIn-house toolsNetapp toolsConclusions67
Oracle directNFS Set-up: Oracle support note [ID 762374.1]ln –s libnfsodm11.so libodm11.so dnfs enabled by default in Oracle 12cln –s libnfsodm12.so libodm12.so (v dnfs servers) Multipath. Check note [ID 822481.1] To take advantage of load balancing, failover features:configure oranfstab:NFS v4, v4.1 still not supported [ID 1087430.1] automount also not supportedAbove applies to 11g, Oracle12c supports nfsv4Same operation done with knfs and dnfsdnfsknfs
Oracle directNFS (II) Mount Options for Oracle files when used with NFS on NAS devices [ID359515.1] RMAN backups for disk backups kernel NFS [ID 1117597.1]Linux/NetApp: RHEL/SUSE Setup Recommendations for NetApp Filer Storage (Doc ID279393.1)Backup to disk repository in publicnetwork (mtu 1500)RMAN backup to disk*450400350300250knfsMB/s200dnfs150dnfs Ontap compression10050012Number of channels3*Ontap 8.1.1. Fas6240, 72x 3TB SATA disks.
Agenda CERN introCERN databases basic descriptionStorage evolution using NetappCaching technologies Data motionSnapshotsClonning in Oracle12cBackup to diskdirecNFSMonitoring Flash cacheFlash poolIn-house toolsNetapp toolsConclusions70
In-house tools Main aim is to allow access to the storage forour DBAs and system admins.Based on ZAPI (download NMSDK from NOW),programmed in Perl and Bash about 5000 linesof codeAll work on C-mode or 7-mode, no need to knowhow to connect to the controllers or ONTAPcommands71
In-house tool: snaptool.pl create, list, delete, clone, restore e.g. API available programmatically72
In-house tool: smetrics Check online statistics of a particular filesystem or controller serving itVolume stats & histograms:73
In-house tool: smetrics (II) But also SSD consumption per aggregate or vol Cluster view: CPU of controller serving data:74
In-house tool: voltool.pl Provides information about the volume:75
In-house tool: centralised logging rsyslog configured for clusters and switches Tool allows to regex by type of alert,It sends emails when a condition is detected:76
In-house logging: reporting Reports are not available on OUM 6.1It reports anomalies in the usage of snapreserved space77
Agenda CERN introCERN databases basic descriptionStorage evolution using NetappCaching technologies Data motionSnapshotsClonning in Oracle12cBackup to diskdirectNFSMonitoring Flash cacheFlash poolIn-house toolsNetapp toolsConclusions78
Netapp monitoring/mgmt tools Unified OnCommand Manager 5.2 (linux) OnCommand Performance Manager (OPM) &OnCommand Unified Manager (OUM) Used for C-modeVirtual machine (VM) that runs on a VMware ESX or ESXiServerSystem Manager Authentication using PAMExtensive use of reporting (in 7-mode)Work for both 7-mode and C-modePerformance management console (performance countersdisplay)AlarmsWe use it mainly to check setupsMy Autosupport at NOW website79
Netapp OPM 1.080
Netapp OPM 1.081
Netapp OnCommand UM 6.182
83
84
Netapp Management console 3.385
Netapp Management console 3.386
Netapp Management console 3.387
Conclusions Positive experience so far running on C-modeMid to high end NetApp NAS provide goodperformance using the FlashPool SSD cachingsolutionFlexibility with cluster ONTAP, helps to reducethe investmentDesign of stacks and network accessrequire careful planning88
Acknowledgement IT-DB colleagues, especially Lisa Azzurraand Miroslav PotockyNetapp engineers: Jeffrey Steiner,Nagalingam Karthikeyan, Nicolas Jacquot89
?90
64 bits aggregates Aggregate with snapshots, they must be deleted before converting into hybrid aggregate SSD rules: minimum number and extensions depending on the model e.g. FAS6000 9 2, 6 (with 100GB SSD) No mixed type of disks in a hybrid aggregate: just SAS SSD, FC SSD, SATA SSD. No mixed type of disks in a raid_gp.
(mailto:cern.reception@cern.ch) cern.reception@cern.ch 41 (0)22 767 76 76 European Organization for Nuclear Research CERN,CH-1211 Genève 23, Switzerland Organisation Européenne pour la Recherche Nucléaire, F-01631 CERN Cedex, France Lat N: 46.2314284 Long E: 6.0539718 R
They are prepared with one of the CAD systems used at CERN and they are formatted in accordance with the appropriate CERN design standards, [ 3], [ 4 ], [5].! A copy of the native CAD data is transferred to CERN and stored in the corresponding CERN CAD database. The transfer to CERN of the CAD data shall take place before drawings are released. -
Selección de poemas de Rubén Darío. Félix Rubén García Sarmiento (1867-1916) es el poeta referente del modernismo al que conocemos como Rubén Darío. En su producción poética distinguimos tres etapas, las de Azul (1888), de un modernismo con gran influencia francesa, la de Prosas profanas
Well you know now you can get ashes put into tattoo ink. My face on your back where the clown is. RUBEN What?! LOU Yeah. RUBEN (Singing) Scary clown face. Scary clown face. INT. SILO CLUB - DAY Ruben and Lou set up their funky version of a MERCH TABLE. Lou talks with ANOTHER MEMBER OF A BAND while Ruben sets out
Ruben Gayon’s family fled Cuba, shortly after Fidel Castro took power, in search of the American Dream. Ruben is a first generation Cuban American. He was born in Florida to Ruben and Mayra Gayon. Ruben at
solutions overview and feature comparison matrix Version 2.3 November 2013 DOCUMENT OVERVIEW HISTORY Version Date Author(s) Remarks 1.0 June 2010 Ruben Spruijt Release 'the Matrix' 1.1 February 2011 Ruben Spruijt Release 'the Matrix reloaded' 1.2 February 2011 Ruben Spruijt 1.3 February 2012 Ruben Spruijt
CERN PS”, CERN/PS 2000-038 (RF) References. 2 J. Belleman - CERN A new trajectory measurement system for the CERN PS Booster CB TT2 TT70 East hall LEIR North hall Linac II South hall Y Radi
Any dishonesty in our academic transactions violates this trust. The University of Manitoba General Calendar addresses the issue of academic dishonesty under the heading “Plagiarism and Cheating.” Specifically, acts of academic dishonesty include, but are not limited to:
