100 recent changes in ATLAS Web retrieved at 12:52 (GMT)

HuaweiNodeNameSerialNumbersMapping
First batch node SN mapping node SN atlas1 2102311GGX10GB000034 atlas2 2102311GGX10GB000035 atlas3 2102311GGX10GB000036 atlas4 2102311...
ClusterInternalSSH
How to use dsh and password less ssh in between the nodes It's very easy to get password less ssh working in between the nodes, you just need a proper ssh keypair...
GridKaHOWTO
GridKaHOWTO Follow the whole process with the same user and the same browser! If you use Firefox, please ensure to use version ESR version 60 or 68 a...
PlannedWork
Planned downtimes This page summarizes planned/on going work within the Atlas cluster along with a few details. Usually, we will issue condor_off peaceful at lea...
WebHome
This is the public information on the ATLAS cluster operated by the Max Planck Institute for Gravitational Physics (also named Albert Einstein Insititute, AEI) si...
NetInstallViaiPXEInstall
Trying to get iPXE as the default method to netinstalls working (based on http://ipxe.org/howto/chainloading and https://doc.rogerwhittaker.org.uk/ipxe installati...
KernelRebuildPbuilder
Rebuilding Debian's kernel (loosely following https://kernel team.pages.debian.net/kernel handbook/ch common tasks.html#s common official) pbuilder environment I...
SpackTest
First steps with spack Please note this all this was tested on a extremely minimally installed server. I.e. just installing something like doxygen can take a very...
CreateHybridUSBImage
Create a hybrid USB Image The goal is to create an image file which can be copied onto a USB stick and booted both via legacy BIOS as well as UEFI. This document ...
SimpleZVolTesting
Simple ZFS ZVol testing creating baseline Create simple test data set in RAM: mkdir p /dev/shm/data for i in $(seq w 30); do dd if=/dev/null base64)" nosalt...
WebStatistics
Statistics for ATLAS Web Month: Topic views: Topic saves: File uploads: Most popular topic views: Top contributors for topic save and uploads: ...
NEW - 13 Jul 2018 - 12:49 by OliverBock
ZpoolTests2017
Simple zpool tests on w8501 raidz1 zpool created as 8*(2 1) raidz1: zpool status pool: srv state: ONLINE scan: none requested config: NAME ...
MonitoringMetrics
Detailed list of metrics we want to monitor Compute nodes (61) * CPU: user / nice / system / wait (4) * disk: * space available/free per locally defi...
MonitoringJessieAndBeyond
Monitoring for Jessie and Beyond What do we want/need to monitor (metrics/checks) A list of non exhaustive metrics and checks we we need/would like to have, e.g....
RadioServer
Atlas Radio Server Typical host names ra1 ra11 Spec table Chassis (3U Chassis) PSU Motherboard X8DT6 network Intel 82574L IPM...
PrivateWeb
Webserver serving user content If you need a webserver to serve content from your $HOME to the world, please create the directory ~/WWW on Atlas if it does not ex...
LowLatencyDataFlow
Low Latency Data Flow
AddNewHostSalt
How to add a new host (salt era) This example will use einstein12 as a sample machine which before was known as ra15. Before you begin, you need to have ssh agent...
JessieUpgrade
Cluster upgrade to Debian 8/Jessie We plan to use this page for keeping a record of where we are with respect to our full cluster upgrade to Debian Jessie. Curr...
FaiJessie
FAI Jessie set up 1 base install via old fai jessie 1 base minimal config via salt 1 echo 'deb http://repo.atlas.local/reprepro fai contrib' /etc/apt/...
DisableKM12ManuallyUseKM4
How to disable KM1/2 and use KM4 manually In order to disable KM1/2 and temporarily run with KM4 only, the following steps are needed (please monitor that each ch...
HSMFileSystemCheck
HSM file system check stats (last update: 2016 07 26T18:42Z) Planned steps (starting at 2016 07 26T11:00Z): 1 Issuing condor_hold to all jobs on all submit hos...
GitmasterMigration
How to migrate from gitmaster to gitlab This document explains how to migrate away from gitmaster.atlas.aei.uni hannover.de to the new gitlab.aei.uni hannover.de:...
AptlyTrial
Aptly For the new LDG repo set , we are trying to use aptly as a potential successor to reprepro. The goals are: * support various Debian and Ubuntu releases ...
EatHDiskConfigTests2
Simple E@H disk layout tests Summary Table with timing results (time in seconds, lower is better): setup file # size/file kB zfs2lc128 zfs2l...
EatHDiskConfigTests
Simple E@H disk layout tests Summary Table with timing results (time in seconds, lower is better): setup md3log z2log/cache zfs3log/cache btrf...
FoswikiMigration
Foswiki Migration assumptions: * /old/ server * wiki.atlas.aei.uni hannover.de * /var/lib/foswiki * /new/ server * 10.20.60.82 * /va...
OraclePartExchange
Oracle Part Exchanges number date of return SR error disk size GB /PN DHL Tracking Auftragsnummer 2013 001 2013 10 07 x ...
LdrDataStatusAtlas
completeness status * type * * detector * * number of files at AEI * * number of files at CIT * * diff * * start time * * end time * * comments ...
GpfsQuestions
general questions are dual port 10GbaseT connectors possible Likely, will be clarified. are 40 GBits (QFSP ) possible Not clear yet. what is the meaning of a q...
VerifySAMTapeDriveOrdering
Checking drive ordering between SL3000 and SAM Following Doc Id 1006246.1 to verify drive ordering matches between SL3000 and SAM/Solaris preparation 1 Shut d...
r2 - 04 Aug 2015 - 11:37 by OliverBock
LllDD
llldd * TCP connection from CIT (or sites) to special receiver machine (possibly need root access for John Zweizig) possibly SL6???? * from there UDP multic...
CondorAccountingGroups
Condor Accounting Groups on Atlas In May 2015, LIGO introduced mandatory accounting groups for jobs running on the LIGO data grid (LDG). As Atlas is part of the L...
IntroductionGeneralPublic
What is ATLAS? ATLAS is a general purpose compute cluster, located in the Albert Einstein Institute for Gravitational Physics, in Hannover Germany, on the campus ...
CondorConfigUpdate2015
HTCondor configuration updates in 2015 (1) Using cgroups to softly enforce memory and core limits Reasoning In the past, we either relied on users' jobs to obey...
PeakPerformanceAtlas
Simple page about the peak performance of Atlas Components CPUs CPU single precision peak performance GFlops/s cores clock GHz Intel Xe...
DistributedFileSystemsBenchmark
Benchmarking distributed file systems stupid fast tests first, all using small compute nodes and use iozone r 32 s $((2**24 2**25)) i 0 i 1 i 2 i 8 O I S...
TypicalRebootOrderEinsteinAtHome
Cheat sheet for rebooting E@H machines in Hannover If the E@H machines need to be rebooted (e.g. kernel upgrade) here's the proper ordering: Isolated machines Th...
SqlDumpEinsteinAtHome
SQLDump tests for Einstein@home On einstein db1 the following was found: # no compresion /usr/bin/mysqldump opt master data=2 EinsteinAtHome mbuffer /dev/nu...
CurrentSysOpTasks
This is just an unsorted, unfiltered list of current tasks and services all over the AEI (and beyond) which could be counted as SYSOP related. It is neither compl...
r2 - 23 Jul 2014 - 15:03 by OliverBock
ClusterGuide
Common guide lines for cluster usage This document describes common pitfalls and guide lines when using a large computing cluster. Some of the details are specifi...
ConfigurationManagement
Configuration Management (primer/summary/brainstormer) What's out there? These are not really meant for configuration mgmt (alone) and have their strengths somew...
r6 - 10 Jul 2014 - 18:07 by OliverBock
DistributedFilesystems
Distributed/clustered file systems This page should summarize what scenarios such file systems could fulfill within Atlas and what we expect from it. Properties s...
r5 - 30 Jun 2014 - 09:45 by OliverBock
HSMUpgradeJuly2014
HSM Upgrade July 2014 This is the proposed plan, small changes may be needed Move from x4270 to x4 2l Moving to new meta data server should result in more file s...
PlannedNextSteps
Planned steps for Atlas Update to Wheezy Steps to perform: * get new head nodes up and running * reinstall all old nodes a0101...a3842, gpu001...gpu0XX ...
LSCDirectoryStructure
Directory hierarchy for LSC files Storage structure for S4/S5/S6 data (past) In the past we used paths like these H/H1/RDS/C03/L1/H H1_RDS_C03_L1 822092472 60.gw...
ConfigurationPossibilitiesFCArray
Short overview on different configuration possibilities for FC arrays Our DDN FC array currently houses 600 disks (400 3 TB drives and 200 2 TB drives). DDN only ...
CoreSwitch
caption abbreviation explanation A left FS1000 B right FS1000 LC line card in EFX 1000 L leaf P port R rack s sun box ...
BCacheBenchmarking
Benchmarking bcache Evaluating if bcache can/should be used on our compute nodes. Benchmarking was performed with iozone (revision 3.397) with the command line io...
ManagementNetwork
HP switch mapping CC3E5FCF11D8 172.25.13.39 mgs039b CC3E5FCF4968 172.25.13.43 mgs043b CC3E5FCF3778 172.25.13.44 mgs044b CC3E5FCF2860 172.25.13.44 mgs045b CC3E5FCF...
HPDataNetConfiguration
basic configuration the default baud rate is 9600 first steps Use the serial console with a baud rate of 9600 and do system view interface Route Aggregation 1...
HSM6780CreateServiceDataFile
Create Service Data File for 6780 In case a hard drive is about to fail (or has already failed), Oracle support needs one special file collection, to create this,...
CompressionSizeEfficiency
Comparing efficiency and size of compressors With samfs and archive dumps being rather large, we needed a good compression scheme for these. We use a 101GB (1033...
HsmSolaris11Update
HSM upgrade Current status 2014 02 01T12:33Z: samfsdump/final backup stopped due to too many non archived files. Rushing to archive those as fast as possible. 20...
Solaris11FirstSteps
First steps with Solaris 11 I'm using the old x4440 machine, booting off a solaris 11 CD based on sol 11_1 text x86.iso. You must exit the grub countdown with ESC...
WorkEndOfYear2013
Infrastructure work at the end of 2013 work status planned dates move gpu001...gpu010 to rack 100 TBD 1952 2013 12 09 move gpu011...gpu02...
EinsteinAtHomeMachineHeadCount
Einstein@Home machine head count Please check this list to make migration and finding/cabling machines easier (racks used for these machines should be 79 (water c...
KernelBuilding
Building an atlas Kernel This assumes that a stable linux kernel source tree already exists on a machine (bob, /srv/kernel/linux stable), cloned via git clone git...
RackLayout2014
Rack layout for 2014 Row 1 rack number main usage 1 old 2008 compute nodes 2 old 2008 compute nodes 3 old 2008 compute nodes 4 ...
RackLayout
Rack layout which racks contained what and when wink Basic information * rack rows are numbered 1 to 10 * Water cooled racks are numbered 1 to 102 * open ...
RackLayoutEmptyTemplate
Empty Table Template Row 1 rack number main usage 1 2 3 4 5 6 A 7 8 9 10 ...
RackLayoutEndOf2013
Rack layout at the end of 2013 Row 1 rack number main usage 1 compute nodes 2 compute nodes 3 compute nodes 4 compute nodes ...
DataNetwork2013
New networking set up for Atlas From 2008 till 2013 we used a flat networking structure, i.e. all computers on the data network were connected "directly" to the c...
NewsTicker
News Ticker for Atlas * 2013 09 03 Start moving hbeggenstein from s10 to HSM/C2 Main.CarstenAulbert 04 Sep 2013
GeneralOverview
For Users * General Introduction for Users * Useful Items * How ATLAS stores files * ErrorMessages and how to fix them (not updated) General Document...
EFX1000
Category:Network Category:WovenSystems This Page is about our ATLAS.CoreSwitch. You might also want to read the TRX page. Configuration access serial not wor...
WebPreferences
ATLAS Web Preferences The following settings are web preferences of the ATLAS web. These preferences overwrite the site level preferences in . and , and c...
EinsteinAtHomeBackfillWithCgroups
Using cgroups to push backfill into the background apt get update apt get y install boinc client libboinc app7 cgroup bin rsync a n0669:/etc/default/boinc clien...
LINDYCOMPowerSwitchLITE
LINDY COMPower Switch LITE 8 Main.AlexPost 11 May 2009: This document describes the use of the LINDY 8port Power Strip 32453. The easiest way to access the po...
DebianLiveBuild
Create benchmark image with Debian live build apt get install live build lb config archives live.debian.net mkdir /srv/live default cd /srv/live default lb ...
TestUpload
testupload Main.SebastianGleicher 31 Jan 2013
WorkPlanShutdown20130115
Work planned for cluster shutdown on 2013 01 15 shutdown plan The following services will be shut down 1 all compute nodes possibly with the exception of "r...
EdacUtilsLabel
The proper labels for the /etc/edac/labels.db are: Vendor: Supermicro Model: PDSML DIMM 1A: 0.0.0, 0.1.0; DIMM 2A: 0.0.1, 0.1.1; DIMM 1B: 0.2.0, 0.3.0; ...
TestTopic12
test Main.CarstenAulbert 13 Nov 2012
EinsteinAtHomeDownloadserverRAID
Einstein@home RAID setup testing Over time the einstein abp1 download server (mostly BRP project) went through various updates to increase download throughput (ap...
BenchmarkCentral
Central benchmark page All our benchmark results should be linked from this page to help rediscovering already performed benchmarks. Ideally, a summary page will ...
AircoGericht
1.: Uns wurde gesagt, dass zu wartende Teile eine Gewährleistungsdauer von 2 Jahre habe. Nicht zu wartende Teile haben eine Gewährleistungsdauer von 5 Jahren. Dur...
CoolingIssuesSummary
Zusammenfassung Kühlprobleme hauptsächlich externe Aermec Kaltwassersätze Gerichtsverfahren Verlauf involvierte Firmen $ Airco : Anlagenbauer der Kältean...
KvmOnVM
generate a kvm environment on vm * login on vm * edit /srv/kvm/config/imagename.conf and add this or similar settings * NIC1=int * NIC2=ext ...
AddNewUser
AddNewUser How to add a new user All this is now done by atlas_adduser.pl from our git repo! The remaining stuff here is done for the fictitious user foo BAR, an...
Internal-serialnumbers
Serial Numbers and MACs of our X4500 Name S/N xge0 e1000g0 e1000g1 e1000g2 e1000g3 s01 0746AMT037 0:c:fc:0:3f:53 0:14:4f:a6:d1:f4 0:14:4f...
ZFSBenchmarkTest
ZFS Send/Receive Performance Testing Since we want to backup and move users' home file systems regularly between Thumpers we want to have as much speed as poss...
S01BenchmarkSSD
Testing different zpool layouts on Thumper Local testing with iozone Essentially the tests were made with a single iozone run per file system, zfs compression wa...
IozoneArecaMirror
Iozone on Areca server Command line iozone a g 16G O n 32K y 32 q 32 i 0 i 2 Disk layout The disk layout for the four test was in RAID1 or RAID10 mode o...
ChannelBondingBenchmark
Channelbonding Benchmark Monitoring CPU,Interupts,Traffic (eth0,eth1,bond0) via dstat T1, T2, T3 are Testnodes n1668, n1669, n1670 (1) netperf Setup * a) S0...
ZFSioZone
IOZone ZFS performance benchmark On s01 with a ZFS layout like this one: atlashome raidz2 c0t0d0 c1t0d0 c4t0d0 c6t0d0 c7t0d0 c0t1d...
MyricomBenchmarking
Myrycom Benchmarking We received two myricom NICs for evaluation 03:00.0 Ethernet controller: MYRICOM Inc. Myri 10G Dual Protocol NIC (10G PCIE 8A) These netperf ...
BenchmarksBonnieX4500
Measured performance with this command line bonnie s 32768 d /path/to/dir u 1000 The results are # data server locally store03,32G,76714,99,358710,47,160723,3...
FfsbFileSystemsComputeNodes
Testing different file systems on Atlas compute nodes We are using the attached ffsb profiles for testing, these are just a first shot at the problem, but might p...
FortinetSwitches
serial numbers, MAC addresses and IP addresse FS100 serial number MAC address IP address status QTFCFI7470011 00:1b:24:be:0b:00 10.25.0.1 ...
AtlasBoincCondor
Atlas Boinc Condor Scheduling As Condor's fetchwork does not seem to work with dynamic slots, we are working on our own "scheduling" system for BOINC Initial tho...
IntroductionUsers
Atlas basic usage guide First things first Be nice to others, others should be nice to you as well :) Please read this aloud: I will be nice to other users, and ...
MoveToSqueeze
Move from Debian Lenny to Debian Squeeze Changes * updated packages from upstream Debian * Condor 7.6 with dynamic slots on most execute machines (exceptio...
AtlasTour
Small tour of Atlas Atlas is a computer cluster situated in the basement of a university building near the Max Planck institute in Hannover. Since the ceiling is ...
DataServer2011
Atlas Data Server 2011 Typical host names from Delta (ra01) Spec table Chassis Supermicro 3U Chassis PSU Motherboard X8DT6 network ...
ComputeNode2008
Atlas Compute Node 2008 These Supermicro based machines were bought from Pyramid in 2008. Typical host names n0001 n1680 Spec table Chassis SC811T 300B (1...
GPU
Atlas Compute Node 2010 Typical host names from Sysgen (gpu001 gpu065) Spec table Chassis Sysgen 4U Chassis PSU Emacs PSL 6C00V Motherboard...
DataServer2008
Atlas Data Server 2008 Typical host names d10 d30 Spec table Chassis 836TQ R800B (4U Chassis) PSU Motherboard X7DVL network Intel ...
HeadNode2008
Atlas Head Node 2008 Typical host names atlas1, atlas2, atlas3, atlas4 Spec table Chassis 836TQ R800B (4U Chassis) PSU Motherboard X7DVL ...
HeadNode2009
Atlas Head Node 2009 Typical host names titan1, titan2 Spec table Chassis Sysgen 1U Chassis PSU SanAce80 Motherboard H8DM8 2 network ...
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Topic revision: r1 - 15 Nov 2006, TWikiContributor
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