02-09-2012
take it easy
hello AmbikaValagonda,
I'm from Syncsort, and saw your thread and the answer you got.
I'm not going to emphasize how good our product is bla bla bla.
Nevertheless, let me just add a few words.
Syncsort SORT is faster than the other sorts when volumes are BIG, i.e. when the source data don't fit into memory. Then, we fear no comparisons.
(and i don't speak about 10%, but 30% to 60%)
Be also aware that each version of Syncsort is faster than the previous ones. If you're using Syncsort 3.X, you may want to give a try to v7.1 before going further.
Syncsort has implemented new features like workspace compression which could accelerate your processes and save additional disk space.
And last, we now have a graphical interface which could reduce your dev and maintenance time, helping you to make more savings than by implementing and maintaining unix shell scripts.
Syncsort solves problems, especially performance problems when data volumes are BIG.
Of course, young geeks prefer scripting. Being able to handle pattern language makes them feel smart.
Best regards,
Steven
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LEARN ABOUT DEBIAN
vgreduce
VGREDUCE(8) System Manager's Manual VGREDUCE(8)
NAME
vgreduce - reduce a volume group
SYNOPSIS
vgreduce [-a|--all] [-A|--autobackup y|n] [-d|--debug] [-h|-?|--help] [--removemissing] [-t|--test] [-v|--verbose] VolumeGroupName [Physi-
calVolumePath...]
DESCRIPTION
vgreduce allows you to remove one or more unused physical volumes from a volume group.
OPTIONS
See lvm for common options.
-a, --all
Removes all empty physical volumes if none are given on command line.
--removemissing
Removes all missing physical volumes from the volume group, if there are no logical volumes allocated on those. This resumes normal
operation of the volume group (new logical volumes may again be created, changed and so on).
If this is not possible (there are logical volumes referencing the missing physical volumes) and you cannot or do not want to remove
them manually, you can run this option with --force to have vgreduce remove any partial LVs.
Any logical volumes and dependent snapshots that were partly on the missing disks get removed completely. This includes those parts
that lie on disks that are still present.
If your logical volumes spanned several disks including the ones that are lost, you might want to try to salvage data first by acti-
vating your logical volumes with --partial as described in lvm (8).
SEE ALSO
lvm(8), vgextend(8)
Sistina Software UK LVM TOOLS 2.02.95(2) (2012-03-06) VGREDUCE(8)