-----Original message----- To: openindiana-discuss@openindiana.org; From: Flo <flor...@acw.at> Sent: Thu 13-09-2012 10:56 Subject: Re: [OpenIndiana-discuss] Problems with netcat zfs receive > Hello, > > thank you very much! With the "d" flag, the nc commands works very well! > > Regards > Florian >
Hi Florian, I played with zfs send/reveive some time ago. One important thing I learned was that netcat is not the first choice to use. There is a tool called mbuffer out there. mbuffer works similar to netcat but allows a specific buffer size and block size. >From various resources I found out that the best buffer and block sizes for >zfs send/receive seem to be 1GB for the buffer with a block size of 131073. Replacing netcat by mubuffer dramatically increases the throughput. The resulting commands are like: ssh -f $REMOTESRV "/opt/csw/bin/mbuffer -q -I $PORT -m 1G -s 131072 | zfs receive -vFd $REMOTEPOOL" zfs send $CURRENTLOCAL | /opt/csw/bin/mbuffer -q -O $REMOTESRV:$PORT -m 1G -s 131072 > /dev/null cu Carsten _______________________________________________ OpenIndiana-discuss mailing list OpenIndiana-discuss@openindiana.org http://openindiana.org/mailman/listinfo/openindiana-discuss
