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Scratch purging policy: Difference between revisions
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Note that simply copying or using the <tt>rsync</tt> command to displace your files will update the <tt>atime</tt> for the original data on scratch, making them ineligible for deletion. Once you have put the data in another location please delete the original files and directories in scratch instead of depending on the automatic purging. | Note that simply copying or using the <tt>rsync</tt> command to displace your files will update the <tt>atime</tt> for the original data on scratch, making them ineligible for deletion. Once you have put the data in another location please delete the original files and directories in scratch instead of depending on the automatic purging. | ||
=How/where to check which files are slated for purging= | =How/where to check which files are slated for purging= <!--T:13--> | ||
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* On cedar, beluga and graham clusters go to the '''/scratch/to_delete/''' path and look for a file with your name. | * On cedar, beluga and graham clusters go to the '''/scratch/to_delete/''' path and look for a file with your name. | ||
* On niagara go to '''/scratch/t/to_delete/''' (link to /scratch/t/todelete/current) | * On niagara go to '''/scratch/t/to_delete/''' (link to /scratch/t/todelete/current) | ||
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The file will contain a list of filenames with full path, possibly other information about atime, ctime, size, etc. It will be updated only on the 1st and the 12th of each month. If a file with your name is there it means you have candidates slated for purging, otherwise there is nothing to worry about that month. | The file will contain a list of filenames with full path, possibly other information about atime, ctime, size, etc. It will be updated only on the 1st and the 12th of each month. If a file with your name is there it means you have candidates slated for purging, otherwise there is nothing to worry about that month. | ||
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If you access/read/move/delete some of the candidates between the 1st and the 11th, there won't be any changes in the assessment until the 12th. | If you access/read/move/delete some of the candidates between the 1st and the 11th, there won't be any changes in the assessment until the 12th. | ||
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If there was an assessment file up until the 11th, but no longer on the 12th, it's because you don't have anything to be purged anymore. | If there was an assessment file up until the 11th, but no longer on the 12th, it's because you don't have anything to be purged anymore. | ||
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If you access/read/move/delete some of the candidates after the 12th, then you have to check yourself to confirm your files won't be purged on the 15th (see below) | If you access/read/move/delete some of the candidates after the 12th, then you have to check yourself to confirm your files won't be purged on the 15th (see below) | ||