rsync for 11.00 in depot form?

[Doug O'Leary]

Hey, all;

My client finally realized that maintaining mission critical applications on an unsupported OS isn't good. They'd like to use rsync to copy the data over to new production systems.

1. Does anyone know of or have a copy of rsync in depot form for 11.00?

2. Does anyone know what the difference between rdist (which seems to come w/HPUX) and rsync is?

As you can probably tell, I'm not too familiar with either application.

Thanks for any hints/tips/suggestions.

Doug O'Leary

[A. Clay Stephenson]

You can download the source for rsync and build your own. It's a rather easy make.

Rsync is the smarter version of otherwise similar utilities. The main difference is that rsync can send only the changed portions of files whereas rdist must copy the entire file. If this is a move of all the data from old to new then either will be equally serviceable. Rdist comes on all HP-UX boxes whereas rsync is downloaded from any of the HP-UX Porting Centre's.

If you are moving entire directories/filesystems from old to new then you might find that an fbackup | remsh frecover pipeline will be at least as fast as any other approach.

[Doug O'Leary]

Hey;

Thanks for the response.

>> You can download the source for rsync and build your own. It's a rather easy make.

The problem with that is I need an ansi c compiler for 11.00 - same issue, different program.

The goal was to do an initial copy of all the data during the week then do a differential copy on Friday morning. Doesn't sound like rdist will do that.

The fbackup | frecover has a lot of potential though. Hadn't thought of that; thanks!

Doug

[A. Clay Stephenson]

It's not that rdist does not do differential copies, it does. The difference is that, for example, rsync can detect that blocks 104, 534, and 10987 of fileA have changed and transmit only those blocks whereas when rdist has determined that fileA has changed, it transmits fileA in its entirety. Over fast networks, you may find that determining whether or not a portion of a file has changed will take longer than sending the entire file -- so even with rsync you might choose to disable the partial changes option.

[Doug O'Leary]

Hey;

Turns out the client had an old copy of it buried on site they maintain for "legacy" s/w.

Thanks, all, for hints/tips/suggestions.

Doug O'Leary