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Obtain a window on a computational node with the
command (see section 4.3.1
for more information
qsub -I). Generate a 4GB GPFS file with
and copy it to your HPSS ``hpssonly'' directory using
What data transfer rate has been reported by PFTP?
- Delete the GPFS file created in exercise 3.4.3, then
copy its image from HPSS back onto GPFS using
sepwidth 4. What data transfer rate
has been reported by PFTP?
- Repeat transfers to and from HPSS in order to observe fluctuations
in transfer rates. What are they caused by?
- Delete the HPSS copy of the file.
- Exit the session on the computational node.