Bookmarks

Yahoo Gmail Google Facebook Delicious Twitter Reddit Stumpleupon Myspace Digg

Search queries

sqldatasource dal, wwwxxxenden, convert raid5 to raid 10 mdadm, apache force chunked, nrao wwwxxx, xxxxxdup, procmail change subject header, wwwXxx not20, Wwwxxx.doks sas, linux raid resync after reboot

Links

XODOX
Impressum

#1: Problem with remote backup using buffer

Posted on 2006-08-15 15:32:04 by Saurabh Jain

Hi All,

I am trying to do remote backup between two linux servers connected by
a CAT 6 cable using gigabit interfaces. Without using buffering, i can
easily do the backup using the following command.

rdump -0auqn -L /sdc1 -f operator@192.168.1.2:/dev/nst0 /sdc1

However the achievalble throughput is near around 16 MB/s. This is
very low as comapared to the throughput supported by my backup system.
I came to know of the buffering technique developed at the Imperial
College, London which helps doing fast and more reliable remote
backups by employing buffering. However whenever i try to use it i get
a buffer write error. The following is the command which i am using.

dump -0auqn -L /sdc1 -f - /sdc1 | rsh -l operator 192.168.1.2 "buffer
-p 75 -o /dev/nst0"
The error message is

buffer (writer): write of data failed: Bad address
bytes to write=10240, bytes written=-1, total written 0K
DUMP: Broken pipe
DUMP: The ENTIRE dump is aborted.

I am not sure what is going wrong. Any help in this regard would be
highly appreciated.

Thanks in advance.

JS
-
To unsubscribe from this list: send the line "unsubscribe linux-admin" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html

Report this message