URL:
<http://savannah.cern.ch/support/?136127>
Summary: RFE: allow NOT to publish in a redirector GPFS
files which are on tape onnly
Project: XROOTD
Submitted by: boccali
Submitted on: 2013-02-25 16:58
Category: None
Priority: 5 - Normal
Severity: 3 - Normal
Status: None
Privacy: Public
Assigned to: None
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Operating System: None
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Details:
As explained in ticket #135998:
At CNAF we have GPFS + TSM tape backend, and files are logically always
present in GPFS. But, when files are on tape only, they appear in GPFS (via
stat()) with the real size, but 0 blocks.
more precisely,
int result = stat64(fileName, &buf);
while buf.st_size is in all cases the real size, buf.st_blocks is 0 if the
file is only on tape, a reasonable >0 number otherwise.
We would like to "publish" to the redirector just the files which are on
disk, in a way that remote xrootd requests cannot cause tape recall
storms...
tommaso
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