17 Mar
2019
17 Mar
'19
4:11 p.m.
Hi All,
I have just used grsync to ensure that my RAW datafiles on my RAID 1
drive and a copy of the RAW datafiles on my External hard drive are
consistent by effecting necessary changes on the external drive as
necessary. But what I now have (5 hours later) is a whole new copy of
the RAW datafiles inside the existing directory on the drive, this has
doubled my storage (200Gb to now 400GB), I plan to delete the parent
folder on the drive and retain the new folder. But what is going to
happen when I want to update with more RAW files?
There is a check box "ignore existing" but how far does that go? If I
make changes to the contents of an "existing folder" on my RAID 1 drive
will those changes also be applied to the folder in the External drive?
For the moment I will rename the NEW folder to RAW2files move it to the
top level and then delete RAWfiles. and rename RAW2files to RAWfiles.
Many thanks
Andrew Greig
17 Mar
17 Mar
7:41 p.m.
On Sun, 17 Mar 2019 at 16:11, Andrew Greig via luv-main
<luv-main(a)luv.asn.au> wrote:
I have just used grsync to ensure that my RAW datafiles on my RAID 1
drive and a copy of the RAW datafiles on my External hard drive are
consistent by effecting necessary changes on the external drive as
necessary. But what I now have (5 hours later) is a whole new copy of
the RAW datafiles inside the existing directory on the drive, this has
doubled my storage (200Gb to now 400GB),
Hi Andrew
I have never used grsync but if it is anything like rsync then what
you describe sounds very much like what might occur if someone
was unaware that the commands
rsync source_directory destination_directory
and
rsync source_directory/ destination_directory
have different behaviour.
(note the second command has a / in it, and the first does not).
I suggest you read a few paragraphs in the rsync manual
here:
https://manpages.debian.org/stretch/rsync/rsync.1.en.html#USAGE
and compare the examples given
rsync -avz foo:src/bar /data/tmp
and
rsync -avz foo:src/bar/ /data/tmp
and note the sentence following that one:
"A trailing slash on the source changes this behavior to avoid
creating an additional directory level at the destination"
and the following paragraphs.
I have a hunch this is likely to solve your puzzle. It might also
be a good approach to do some commandline experiments
using a small test directory so that you don't have to wait 5 hours
each time, until you understand how the command works.
Regards
David
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David