On Wed, 2004-11-10 at 09:31, Ralf Behrendt wrote: > is its possible to restore 250 GB ( two million files) within a day? > Its an NSF mounted filesystem. Can parallel restore increase the throughput > by an NSF-mouted filesystem. > The filesystem is mounted from a EMC cellera and symmetrix. > The backup time was with 13 hours with parallel sessons. > Then the data will be migrated the LTO1 tapes in an IBM 3584. > Has any one experience with restore off many little files with high > throughput.
Assuming you have TSM 5.2, why don't you use imagebackup and incr? This will shorten backup and restoretimes. If you use incremental backup only, forget about the restoretimes. I know of restoretimes of 1GB/h in an environment with ~3.5 mio. directories and and ~2.5 mio. files (~100GB of data), DASD. -- Michael Prix "What is this talk of 'release'? We do not make software 'releases'. Our software 'escapes', leaving a bloody trail of designers and quality assurance people in it's wake." -- BSD Programmers Statements #5
