rcp from server1 to server2 ..

[Shabaz]

Hi,
I am using rcp to copy files from server1 (L2000) hp-Ux 11i to server2 (L1000) hp-Ux 11i.
In both the server, I can see 90 system is idle,
Can I speed up the rcp, (more priority).
(rcp is going very slow, total 10gig to copy)
Can I use nice command ?

Is it possible, if yes pelase ...
Thanks & Regards
Shah

[Thierry Poels_1 · Accepted solution]

Hi,

possible network bottle neck?! Try to route to 100MB lan or faster (fibre optic) if available.

You can also try to compress the data before the copy :

find . | cpio ???ocB | compress | remsh srv2 ???cd /dir; uncompress| cpio ???icvdumB???


good luck,
Thierry.

[Shabaz]

Hi,
Thanks Thierry, for quick response.
I can't compress the source files, these are binaries.

Is there no otherway? at command level,
like nice command.

Please ...

Regards
Shah

[Deepak Extross]

Hi,
rcp is not a cpu-intensive process. So reducing the nice value doesn't sound like a solution to your problem. It's more likely that the network bandwidth is the bottleneck. You can check by ftp'ing a small file across the 2 machines - on completion of the file transfer, it will display the data transfer rate. Form that, you can estimate the time required to transfer your file.

[Deepak Extross]

Shabaz,
Binaries *can* be compressed, just as long as you remember to uncompress them at the other end before running them.

Try doing this:
ON SOURCE MACHINE:
tar cvf mytar ; gzip mytar ;

ON DESTINATION MACHINE:
gunzip -c mytar.gz | tar xvf -

[Thierry Poels_1]

please DO try this one:

cd /sourcedir
find . | cpio ???ocB | compress | remsh server2 ???cd /targetdir; uncompress| cpio ???icvdumB???

EVERYTHING will copied (including links, special files, ...), and all will be compressed and uncompressed on the fly.

good luck,
Thierry.

[Michael Tully]

One thing I would like to suggest you also look at is the network. Make sure that you LAN cards are in sync with your switch. The cards should be running as Full-Duplex and not half-duplex. You can use 'lanadmin' to view it and also to change it.

# lanadmin
to change
# lanadmin -X 100FD 0 (LAN card 0)

HTH
-Michael