Date: Fri, 30 Jun 2000 07:31:54 -0700 (PDT) From: Paul Orr <Paul.Orr@jetsam.com> To: freebsd-questions@freebsd.org Subject: dump & general backup problem Message-ID: <200006301431.HAA36583@jetsam.com>
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I'm running 3.4-release and I'm trying to dump 74GB to a tape drive on another machine. The problem I'm having is that it's INCREDIBLY slow and discouraging. The 74GB resides on a raid5 box with 300GB of space. Is this large disk out of the ordinary? If not, then what can I do to make it take less than 2 days to back up this little amount of data? Things I've tried: 1) Dumped locally. Started a dump from the disk to /dev/null. Just as slow. 2) cp largefile from largedisk to localdisk. Worked well without delay. 3) tar cf - filename | (rsh backupmachine "dd obs=1024k of=tapedrive" ) Worked fine (with large block size). default blocksize was slowwwww. Wits end time. A 36GB filesystem on the same box backs up just fine. I've suspected the raid controller, host card (advansys 3940uw), network but none of them are consistently at fault. Any ideas are welcome. Thanks Paul Orr To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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