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| − | [[Category:Grid computing]] | + | #REDIRECT[[Swestore Documentation Moved]] |
| − | [[Category:Storage]]
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| − | [[Category:Swestore]]
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| − | [[Category:SweGrid user guide]]
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| − | [[Getting started with SweGrid|< Getting started with SweGrid]]<br>
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| − | [[Swestore National Storage|< Swestore National Storage]]
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| − | = Introduction =
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| − | | |
| − | (UNDER DEVELOPMENT)
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| − | | |
| − | The SNIC national storage infrastructure is implemented using dCache, which is a distributed storage system presenting the user with a single filesystem view. The front-end host of the system is srm://srm.swegrid.se which is the machine presenting the filesystem for the user.
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| − | The system uses VOMS proxy certificates for authentication. Please see, [[Grid certificates#VOMS certificates|VOMS Certificates]] , for information on how to generate a voms proxy certificate.
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| − | | |
| − | = Copying files =
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| − | Copying files to and from resources is accomplished using the '''arccp''' command. The command can handle many of existing protocols, such as: ''http, https, httpg, ftp, gsiftp, lfc, rls, srm''.
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| − | | |
| − | == Copying single files ==
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| − | Copying single files is accomplished in the same way as using the normal '''cp''' command as shown in the following example:
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| − | <pre>[jonas@localhost jonas2]$ arccp archive.tar.gz srm://srm.swegrid.se/ops/</pre>
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| − | == Recursive copying ==
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| − | Recursive copying is accomplished using the '''--recursive''' option. The argument to the option determines the depth of the recursive copy.
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| − | <pre>
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| − | [jonas@localhost swestore]$ arccp --recursive=3 jonas2/ srm://srm.swegrid.se/ops/jonas/jonas2/
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| − | </pre>
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| − | | |
| − | = Listing files =
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| − | Listing files on a resources is done using the '''arcls''' command. In the simplest form the command just takes a URL as input and displays names and directories without any extra information as shown in the following example:
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| − | <pre>
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| − | [jonas@localhost jonas2]$ arcls srm://srm.swegrid.se/ops/
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| − | motd.1
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| − | bla
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| − | generated
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| − | ops
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| − | motd.f343
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| − | GridFTP-1.0.20-linux.gtk.x86.zip
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| − | test23
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| − | test24
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| − | ronstestfile
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| − | ronstestfile3
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| − | testfile-put-1296854868-6468a2d5df07.txt
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| − | </pre>
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| − | Additional information can be listed by adding the '''--long''' option.
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| − | <pre>
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| − | [jonas@localhost swestore]$ arcls --long srm://srm.swegrid.se/ops
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| − | <Name> <Type> <Size> <Creation> <Validity> <CheckSum> <Latency>
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| − | motd.1 file 354 2008-06-05 12:28:23 (n/a) adler32:582d7718 NEARLINE
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| − | bla dir 512 2008-08-22 12:23:49 (n/a) (n/a) NEARLINE
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| − | generated dir 512 2008-11-17 15:07:39 (n/a) (n/a) NEARLINE
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| − | ops dir 512 2010-01-21 11:26:00 (n/a) (n/a) NEARLINE
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| − | motd.f343 file 436 2010-01-08 14:35:40 (n/a) adler32:0fed94f2 ONLINE
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| − | GridFTP-1.0.20-linux.gtk.x86.zip file 30479220 2011-03-09 09:49:20 (n/a) adler32:5c67686b ONLINE
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| − | test23 file 0 2011-03-04 09:44:44 (n/a) adler32:00000001 ONLINE
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| − | test24 file 0 2011-03-04 09:45:07 (n/a) adler32:00000001 ONLINE
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| − | ronstestfile file 4 2010-11-23 17:46:13 (n/a) adler32:03cd014b ONLINE
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| − | ronstestfile3 file 4 2010-11-23 17:49:07 (n/a) adler32:03cd014b ONLINE
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| − | testfile-put-1296854868-6468a2d5df07.txt file 20 2011-02-04 22:28:47 (n/a) adler32:1a400272 ONLINE
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| − | </pre>
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| − | Metadatainformation on a specific file can be listed by specifying the '''-m''' or '''--metadata''' option. In the following example the metadata information of the '''test23''' file is shown:
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| − | <pre>
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| − | [jonas@localhost swestore]$ arcls --metadata srm://srm.swegrid.se/ops/test23
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| − | /ops/test23
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| − | accessperm:rw-r-----
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| − | checksum:adler32:00000001
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| − | ctime:2011-03-04 09:44:44
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| − | filestoragetype:PERMANENT
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| − | group:25001
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| − | latency:ONLINE
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| − | lifetimeassigned:PT1S
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| − | lifetimeleft:PT1S
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| − | mtime:2011-03-04 09:44:45
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| − | owner:25001
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| − | path:/ops/test23
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| − | size:0
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| − | spacetokens:
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| − | type:file
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| − | </pre>
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| − | | |
| − | = Creating directories =
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| − | | |
| − | There are no command line tool yet for creating directories. This command will probably be added in a upcoming release. In the meantime the following procedure can be used:
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| − | <pre>
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| − | [jonas@localhost swestore]$ mkdir mydir
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| − | [jonas@localhost swestore]$ touch mydir/dummyfile
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| − | [jonas@localhost swestore]$ arccp ./mydir/ srm://srm.swegrid.se/ops/mydir/
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| − | [jonas@localhost swestore]$ arcls srm://srm.swegrid.se/ops/mydir
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| − | dummyfile
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| − | </pre>
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| − | The dummmy file can be removed using the arcrm command described in the following sections.
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| − | | |
| − | = Removing files =
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| − | <pre>[jonas@localhost swestore]$ arcrm srm://srm.swegrid.se/ops/mydir/dummyfile</pre>
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| − | | |
| − | = Removing directories =
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| − | To remove directories they have to be empty. To indicate a directory the URL should end with a '''/'''.
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| − | <pre>[jonas@localhost swestore]$ arcrm srm://srm.swegrid.se/ops/mydir/</pre>
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