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| public:srmclientinstallation [2015-05-07 14:25] – [FNAL/dCache client tools] Joern Kuensemoeller | public:srmclientinstallation [2015-09-01 12:51] – [FNAL/dCache client tools] Joern Kuensemoeller |
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| **Note** that the previouly provided ''proxy-init.sh'' script from [[http://code.google.com/p/jlite/|jLite]] is now discouraged because its encryption strength of 512 bit is not considered sufficient any more. SRM sites require a minimum strength of 1024 bit. | **Note** that the previouly provided ''proxy-init.sh'' script from [[http://code.google.com/p/jlite/|jLite]] is now discouraged because its encryption strength of 512 bit is not considered sufficient any more. SRM sites require a minimum strength of 1024 bit. |
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| To allow usage of the LOFAR VO (Virtual Observatory), there are three additional steps to take: | To allow usage of the LOFAR VO (Virtual Organization), there are three additional steps to take: |
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| * Create a ''vomses'' file to allow ''voms-proxy-init'' to contact the relevant VOMS server | * Create a ''vomses'' file to allow ''voms-proxy-init'' to contact the relevant VOMS server |
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| * 145.100.32.0/22, i.e. 145.100.32.0 to 145.100.35.255, for SURFsara | * 145.100.32.0/22, i.e. 145.100.32.0 to 145.100.35.255, for SURFsara |
| * 134.94.*.* for FZJuelich. | * 134.94.32.0/22, i.e. 134.94.32.0 to 134.94.32.255, for FZJuelich. |
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| Active gridftp can improve performance of a single transfer as it will use multiple parallel connections for retrieving a file. For the FNAL/dCache client, 'active' transfers are initiated if the ''-server_mode=passive'' setting is omitted. For the Berkely client, parallel transfers will be initiated when the ''-parallelism'' parameter is set to a value larger than 1. Since most cases LOFAR datasets consist of a large number of files, a similar performance improvement can be achieved by splitting the set of files over multiple srm copy processes. This is usually easier to set up than the firewall requirements. Note that e.g. the dCache client does not have a default setting for the gridftp port range. Further, srmcp ignores the GLOBUS_TCP_PORT_RANGE environment variable. You have to specify the port range (that you opened in your firewall) via the ''globus_tcp_prt_range'' option of srmcp, e.g.: | Active gridftp can improve performance of a single transfer as it will use multiple parallel connections for retrieving a file. For the FNAL/dCache client, 'active' transfers are initiated if the ''-server_mode=passive'' setting is omitted. For the Berkely client, parallel transfers will be initiated when the ''-parallelism'' parameter is set to a value larger than 1. Since most cases LOFAR datasets consist of a large number of files, a similar performance improvement can be achieved by splitting the set of files over multiple srm copy processes. This is usually easier to set up than the firewall requirements. Note that e.g. the dCache client does not have a default setting for the gridftp port range. Further, srmcp ignores the GLOBUS_TCP_PORT_RANGE environment variable. You have to specify the port range (that you opened in your firewall) via the ''globus_tcp_prt_range'' option of srmcp, e.g.: |