John Jolet wrote: > > On Jan 24, 2006, at 11:46 AM, Tom Smith wrote: > >> John Jolet wrote: >> >>> >>> On Jan 24, 2006, at 11:20 AM, Tom Smith wrote: >>> >>>> Jeff wrote: >>>> >>>>> Hey guys. >>>>> >>>>> I've got this big fat backup server with no space left on the hard >>>>> drive >>>>> to store a tar file. I'd like to pipe a tar through ssh, but not >>>>> sure >>>>> what the command would be. Something to the effect of: >>>>> >>>>> # cat /var/backup | ssh backup.homelan.com 'tar data.info.gz' >>>>> >>>>> So that, the data is actually being sent over ssh, and then >>>>> archived on >>>>> the destination machine. >>>>> >>>>> Help! >>>>> >>>>> :-) >>>>> >>>>> >>>> Not possible. What you want is more along the lines of AFS, NFS, >>>> SMB, or >>>> the like. >>>> >>> >>> WRONG. I do it all the time. >> >> >> Ok,. my bad. (Open mouth, insert foot. :-D ) >> >> Being a *nix junkie, I tend to do some things old school--that is, >> there >> are specific tools that are (dare I say) more specialized to such a >> task. You know... SSH = Secure SHell, SCP = Secure CoPy, SFTP = Secure >> FTP... So I had never really looked into using the "ssh" program for >> copying files between servers--it's always been more of a telnet-like >> application for me. >> > hmmm, old school, eh? I was doing that tar trick about 10 or 11 > years ago. > you HAVE to do that if you have no room to complete the tar file on > the source, THEN transfer it. it's quicker than scping a lot of > files and then tarring them up on the destination, especially if THAT > doesn't have room for both the source files and the tar. I did > extensive performance testing for database migrations about 5 years > ago and what I said was by far the most efficient, timewise (though, > I didn't simply redirect to a file, but dd of=filename)
Well, perhaps "old school" has different meanings to different people. :-) I was referring to the UNIX "tools" philosophy in which each program has a very specific use, similar to qmail (the original, unmodified qmail, that is). And this is usually the direction I take when looking for "tools" to accomplish some task. But I suppose this philosophy doesn't really apply quite as much nowadays. I must say, though, I've always managed to anticipate the storage needs of my servers so running low on or (even worse) running out of disk space has never been a problem. So I've never had to research such "tricks" to get things to work within those types of constraints. Call me quirky, but that's part of being a sysadmin... Yes? ;-) -- gentoo-user@gentoo.org mailing list
