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AddFilestoSpaceToken
Adding Files to Space Token Areas To add files already in dCache to space token areas we need to do a number of things: * Create a new space token to hold the ...
AssociateDirectoryToPools
How a associate a directory to certain pools user case: we need to designate certain pools for sc07,which means when we write data to a certain directory, data wi...
CleanProddisk
We are using charles's proddisk_clean.py to clean our proddisk regularly.. 1 login dq2.aglt2.org as dq2 2.setup the env. export LFC_HOST=lfc.aglt2.org source /a...
CleaningSRMSpaceToken
Cleaning Up the srmspacefile Table (SRM Space token Allocations) We recently found out that our srmspacefile table in dcache was inconsistent with our actual spac...
ConsistencyWorkAferLosingAnode
What To Do after losing the dcache partions of a Node? Due to the rocks rebuilding failures. dcache partitions could be wiped during the rebuilding, thus we have ...
DCacheOfAGLT2
Dcache on AGLT2 service distribution: all the dcache services are physically distributed to 37 nodes. tow of them are head nodes(head01.aglt2.org and head02.aglt...
DCacheRepHot
RepHot for dCache configuration file default path : /opt/rep_hot/config/rephot.conf VERBOSE=1 ## increase it from more detailed log file DEBUG=0 #...
DCacheUpgrade
Upgading dCache Starting on the morning of May 4th 2009 AGLT2 began upgrading from dCache 1.8.0 15p12 to 1.9.2.5 as well as migrating to Chimera. This was motiva...
DcacheTroubeShooting
Dcache TroubleShooting Case 1.. node c 104 2 has some broken files which mean the md5sum of local file doesnt match the md5sum of source file.. we decided to rec...
DebuggingExample
debug on the dccp on dcache admin node root@head01 ~# dccp dcap://head01.aglt2.org/pnfs/aglt2.org/data/tdhtest3 /tmp/test3 12317 bytes in 0 seconds It works,also ...
GetUpdatedAfterAddingNewSpaceToken
We have a bunch of scripts which relies on the space token information, therefore,I define 2 hash based subroutine in the dcache perl Library, everytime you add/r...
HowToAccessDcacheDataFromRoot
How To Get Data From Dcache directly by Root when using Root, you can specify the root files in 2 different ways: 1 download these files from the dcache director...
HowToAddNewPoolNode
How to add a new pool node to dCache/Chimera * Provision node via ROCKS (or other method) * Install correct kernel (if not done above): currently 2.6.38 UL5...
HowToAddNewPoolsToChimera
LOST all my edits by a key sequence...(from Emacs)... * First read dCache book for info: http://www.dcache.org/manuals/Book/start/in install.shtml http://www....
HowToAddNewPoolsToDcache
How To Add New Pools to Dcache This page is obsolete for dCache/Chimera. See HowToAddNewPoolsToChimera instead. On our existing dcache system ,I add some New ...
HowToAddNewStorage
How to Add New Storage to dCache We will look at the example of umfs16, where 12 new pools were added. Following the xfs file system creation, all disks were mou...
HowToCopyDataToDcache
How to Copy data to dcache we can use dccp , srmcp or globus url copy utilities to copy data to dcache, but dccp dosnt support recursive, srmcp will finally call ...
HowToDrainAndRemoveStorage
Directions on Draining then Removing a Pool Set pool readonly. Can start drain right away, but will likely miss a few files ssh to admin domain \c PoolManager \c...
HowToEasyMoveDataFromPoolToPool
Easy Move dcache data from pool to pool UserCase we want to retire non resilient pool umfs07_2 from dcache which holds 1.7TB data,so we need to move these data t...
HowToEditAFS
How to convert a RO volume to a RW volume in AFS 1) Get tokens as 'admin' via 'kinit admin' folllowed by 'aklog' 2) Check the mount: 'fs lsmount /afs/atlas.umi...
HowToExtendPoolView
How To Extend PoolView Purpose Allows to group pools on the web pages either according to the PoolManager groups or to customized groups. How to ? Uncomment th...
HowToMoveDataFromPoolToPool
How to Move data from pool to pool (how to drain a pool) *usecase*: we want to retire the node c 2 33 from the pool nodes..so we need to move the data from po...
HowToRmPnfsDir
How To rename or RM pnfs dir Rename Just do the rename as the 'root' user. You will get the error message "mv: cannot move `xxx' to `yyy': Stale NFS fil...
HowToSetUpATLASSpaceToken
Setup Atlas Space Token background details about why space revervation is needed, refer to srm space reservationdcache book. steps to set up space reservation ...
HowToSetupBerkeleyDBforPoolMetadata
Here is from an email: In dCacheSetup (in Aglt2, it is poolSetup)you need to define: metaDataRepositoryImport=org.dcache.pool.repository.meta.file.FileMetaDataRe...
HowToSetupSrmSpaceReservation
Setup Srm Space reservation background details about why space revervation is needed, refer to srm space reservationdcache book. steps to set up space reservat...
HowToUpgradeDcache
Procedure for Installing or Upgrading dCache Servers Procedure for installing dCache servers. This is tested for use on the dCache storage nodes / gridftp doors....
HowToUpgradeStorage
Upgrading dcache storage hardware This is a procedure to follow when you don't wish to create a new pool but instead copy an old one to new hardware and have it o...
ManagementofDcache
Management of Dcache main services to maintain head01 : dcache core head02: postgresql pnfs dcache core pool nodes: dcache core dcache pool main configurati...
ManualReplicateHotFile
Manual Replication of Hot Files in dCache Particularly for the Health Check, we need multiple copies of the source file All work is performed in either a browser ...
MergeSpaceTokens
Merging Existing Space Tokens When we setup space tokens for AGLT2 we assumed we needed a space token for each VO/Role that needed to be able to write to a space ...
MuonReco
ATLAS Software Muon Cosmic Data Reconstruction Tutorial Authors: Tiesheng Dai and Steven Goldfarb \ BU Workshop : Home \ Agenda \ Slides for Deta...
r12 - 19 Dec 2008 - 19:10 by SteveGoldfarb
NewdCacheHeadNodesJan11
Creation of New dCache Headnodes (Dell R610) in January 2011 As part of our Fall 2010 procurements we purchased 2 Dell R610 nodes to host the dCache services (he...
NewdCacheNodes
Procedure to Migrate dCache headnodes (head01/head02.aglt2.org) to new hardware and operating system. During fall 2009 and winter 2010, AGLT2 is migrating all lin...
RemovingPNFSGhosts
Removing PNFS (Chimera) Ghosts There is the possibility that the chimera DB can become out of sync with the actual files stored on disk. The t_dirs table holds t...
SettingUpATLASHOTDISK
Setting up ATLAS Area HOTDISK for AGLT2 As of mid September 2009 we need to provide a new space token area in Tiers of ATLAS call 'HOTDISK'. There are a few com...
SetupLVSdCap
Setting up LVS (Linux Virtual Server) for use with dCap Newer linux kernels have LVS built in (as well as our UltraLight kernels). See http://kb.linuxvirtualserv...
ShutDownPoolNode
HowTo Shutdown a Pool Node While In Production We sometimes need to restart/reboot pool nodes and would like to make this as least disruptive to the production sy...
TestingNewStorageBuild
Testing of New dCache Storage Node Build Here is the testing result for a new storage node (summary: it works). After running \x91install_dcache.sh\x92 on UMFS16...
TrackTransfersTodCache
Track Transfers to dCache Just some quick notes on tracking specific transfers to dCache. * First, make sure the SRM logging is verbose enough (going to catali...
UpgradeGPlazma
Upgrading from GPlazma1 to GPlazma2 on dCache 2.2.12 In preparation for upgrading to dCache 2.6 we need to reconfigure our dCache GPlazma configuration to go from...
UpgradedCacheHeadnodesJun13
Updating and Upgrading dCache Headnodes for AGLT2 June 2013 The dCache headnodes head01.aglt2.org and head02.aglt2.org were transitioned to VMware VMs in 2012. As...
VaccumPgsqlDB
How to Vacuum Postgresql DB sometimes, when too many deletion or updating opereations happened to the postgresql database, it would run into a transactionid probl...
WebHome
Atlas Great Lakes Tier2 Web How to contact us * For problems, contact us through our signatures here: * Main.WenjingWu AGLT2 Manager and University of M...
Number of topics: 44
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