Re: Copy within the NFS partition

On 2009-12-05, Mark Hobley <markhobley@xxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
Johannes Bauer <dfnsonfsduifb@xxxxxx> wrote:
Reading his post again, it appears to me as if Mark was talking about
"mv", not "cp". As mv utilizes rename(2), this would be fast. However, a
variant of mv, "my_mv", which would do
open/open/read/write/close/close/unlink would be as slow as cp, obviously.

I know for sure that the kernel mode server moves files directly on the
server side, because when I used to drag a folder containing squillion
files, this used to take about 4 hours to drag across the lan, and the
lan lights used to flash on the hub as the files were dragged across.

Sure. A move is no more than a simple renaming process if done on the
same filesystem. Try the same thing with a copy, though.


When I switched to using the kernel mode NFS server, this stopped
happening and the files moved almost instantaneously on the server without
the lights flashing on the hub.

I can drag files made available via the NFS share, and it is very
obvious that they are not being dragged across to the client and back.

I can tell just by looking at my hub lights.

Hub? Yuk.

--
Joe - Linux User #449481/Ubuntu User #19733
joe at hits - buffalo dot com
"Hate is baggage, life is too short to go around pissed off all the
time..." - Danny, American History X
.

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