Date: Fri, 09 Nov 2007 23:28:27 +0100 From: Henri Hennebert <hlh@restart.be> To: Richard Arends <richard@unixguru.nl> Cc: freebsd-current@freebsd.org, freebsd-stable@freebsd.org Subject: Re: ZFS deadlock ? Message-ID: <4734DF0B.7040300@restart.be> In-Reply-To: <20071109204830.GC13845@shell.unixguru.nl> References: <47348CAC.5020208@restart.be> <20071109182355.GB13845@shell.unixguru.nl> <4734C4AF.9020609@restart.be> <20071109204830.GC13845@shell.unixguru.nl>
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Richard Arends wrote: > On Fri, Nov 09, 2007 at 09:35:59PM +0100, Henri Hennebert wrote: > >>> This won't start the scrubs at the same time, but after each other. And >>> the second will only start if the first one not fails (exitcode == 0) >>> >> Not at all, the scrub is asynchronious, I'm sure of it > > Running 2 commands seperated by && will not run at the same time. Scrub > could be asynchronious, i don't know, but that has nothing to do with the > way you are running it. > > See: echo "sleep 1" && time sleep 2 && echo "sleep 2" && time sleep 2 > and: ls -l /notfound && echo yes Per the man page, zpool scrub *begin* a scrub witch go on in background, so two scrubs are running simustaneously on 2 different pools. Henri
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