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Raw Data

Raw data  files include the keyword raw data files (RDT), parameter files (PFT), calibration files, etc. For most digraphs there are 2 raw data files per shot, an RDT file and a PFT file.

Raw data files are transferred to the VMS spooling disks during the shot cycle. They are archived to tape as soon as possible and skimmed within one day to make room for incoming files. These raw data files can be restored with GETSHOTS to the raw data disks. They can also be copied from the spooling disks to the raw data disks with COPYSHOTS. Each diagnostic has a directory, [TFTR.di], on one of the spooling disks and on one of the raw data disks. These disks are accessed by logical names DRW0, DRW1, and DSP0 which are described in section 3.1.1. Users cannot create, modify or delete files on the spooling disks. Users can create files on the raw data disks, but they will not be archived. It's assumed that files on these disks have already been archived. Users with the TFTR_RESULTS_OWNER  privilege can delete files from the raw data disk. (Be careful, since you could delete other peoples' files.) This lets you manage your own space when you need to restore lots of data.

Raw data files are skimmed  or deleted by expiration date which is updated when a file is accessed. Each diagnostic is given a quota  on the spooling disk and a quota on the raw data disk. When a diagnostic exceeds its quota and space is needed on that disk, then that diagnostic's files are skimmed. See Tom Gibney to get your quota changed if your files are being skimmed too quickly. For additional information do $ HELP SKIMMING or contact Tom Gibney.

Marilee Thompson
Fri Jul 11 11:22:04 EDT 1997