Re: new idea

[Sanjeev Jha <sanjeevjha@xxxxxxxxxxx>]

Thanks Sean.
Your mail and man page of rsync and rsync.conf answered most of my doubt.
There is one question, I couldn't get answer from the site.
Q:- Does it support backup /mirroring of open files and open applications ??

-sanjeev



--- Sean Burford <slide@xxxxxxxxxxxxxxxx>
> wrote:
>> Those who suggest to use "rsync", I have couple of questions for you.
>> I saw the site and document,
>
>I suggest downloading it and reading the man page.
>
>> *  The largest test was 24MB.  I am looking for giga bytes servers, 
>> Will it support ? Also someone in mailing list raise the issue of eating 
>> so much "CPU" by "rsync" ??
>
>I don't know the answer to that one.  You will have to experiment.  Try 
>increasing the block size.
>
>        -B,  --block-size=SIZE      checksum blocking size (default 700)
>        -z, --compress              compress file data
>        --bwlimit=KBPS              limit  I/O bandwidth, KBytes
>
>>   *  It does not address replicating all the file attributes (as far as 
>>      I can tell). 
>
>It does more than that:
>
>        -l, --links                 preserve soft links
>        -L, --copy-links            treat soft links like regular files
>            --copy-unsafe-links     copy links outside the source tree
>            --safe-links            ignore links outside the destination tree
>        -H, --hard-links            preserve hard links
>        -p, --perms                 preserve permissions
>        -o, --owner                 preserve owner (root only)
>        -g, --group                 preserve group
>        -D, --devices               preserve devices (root only)
>        -t, --times                 preserve times
>
>>   *  It does not address the initial synchronization problem ?
>
>If the initial sync problem is :
>  How do I get the file there in the first place?
>then, yes, rsync handles this.  It works like rcp in this special case, 
>though you may like to use the throttle feature, as it will gladly use as 
>much bandwidth as is available otherwise.
>
>        -W, --whole-file            copy whole files,  no  incremental checks
>
>Sean

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