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• To know if a file is on the disk, you can use lcg-ls [1921] command  command with the option -l. For example:

  lcg-ls -c 100 -v -l srm://storm-fe-archive.cr.cnaf.infn.it:8444/pamela/data/file

  
  The output will be something like this:

  SE type: SRMv2

  -rw-rw-rw- 1 2 2 681491712 ONLINE_AND_NEARLINE /pamela/data/file […]

  
  In output of the command, next to the file, there will be its status. ONLINE_AND_NEARLINE means the file is present both on disk and tape, while NEARLINE means it is only on tape.
  NB: for SL7 “lcg-utils” and so “lcg-ls” are deprecated
  
  

• Another way to check where is a file is to use the following command (to be used with a valid VOMS Proxy):

  clientSRM ls -l -v NIG -e <endpoint> -s <file-SURL>

  
  Based on the information shown in the output, it is possible to locate the file:
         - "retentionPolicyInfo=(2,0)" : on tape
         - "retentionPolicyInfo=(0,0)" : only on disk
  
  Example:
  # file on TAPE:
clientSRM ls -l -v NIG -e httpg://storm-fe-archive.cr.cnaf.infn.it:8444/ -s srm://storm-fe-archive.cr.cnaf.infn.it:8444/icarus/test-srm

[...]
[0] retentionPolicyInfo=(2,0)
[...]

#file only on DISK:
clientSRM ls -l -v NIG -e httpg://storm-fe-archive.cr.cnaf.infn.it:8444/ -s srm://storm-fe-archive.cr.cnaf.infn.it:8444/icarusdata/std.err

[...]
[0] retentionPolicyInfo=(0,0)
[...]
  
  
• Using "gfal-xattr" command as following:

  gfal-xattr <file-SURL>

  
  NB: gfal-xattr ALWAYS recall a file! This is a bug of the command that will be fixed by the gfal utils developers. 

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