Date: Thu, 19 Aug 2010 21:43:25 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: "Michael W. Lucas" <mwlucas@blackhelicopters.org> Cc: fs@freebsd.org Subject: Re: HAST secondary identifying when it's dirty? Message-ID: <20100819194325.GA2719@garage.freebsd.pl> In-Reply-To: <20100818183300.GA98970@bewilderbeast.blackhelicopters.org> References: <20100818183300.GA98970@bewilderbeast.blackhelicopters.org>
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[-- Attachment #1 --] On Wed, Aug 18, 2010 at 02:33:00PM -0400, Michael W. Lucas wrote: > Hi, > > I have a HAST device set up between two systems. It appears that the > secondary doesn't know when it's dirty. Is there any way for the > secondary to know that its copy is incomplete? > > For example, I had to resync my HAST partition due to a firewall > issue. While the master knows the secondary is dirty, the secondary > thinks it's complete. For example: > > master# hastctl status > mirror: > role: primary > provname: mirror > localpath: /dev/da0s2 > extentsize: 2097152 > keepdirty: 64 > remoteaddr: 192.168.0.1 > replication: memsync > status: complete > dirty: 24385683456 bytes > > secondary# hastctl status > mirror: > role: secondary > provname: mirror > localpath: /dev/da0s2 > extentsize: 2097152 > keepdirty: 0 > remoteaddr: 192.168.0.2 > replication: memsync > status: complete > dirty: 0 bytes > > The secondary doesn't realize it's 24GB out of sync. > > Is there any way for the secondary to get this information? Nope. Secondary doesn't even know that synchronization is progress. The only thing you can do is to: # ssh primary hastctl status :) -- Pawel Jakub Dawidek http://www.wheelsystems.com pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (FreeBSD) iEYEARECAAYFAkxtiVEACgkQForvXbEpPzQSqACfRsg0I5A6/ATjYVgppUmK30nX IvQAnjugdF9BBNF41hbX72QBdnKz8vg8 =GRCr -----END PGP SIGNATURE-----
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