Date: Mon, 17 Jan 2005 09:38:29 -0600 From: "Daniel P. Zepeda" <freebsd@zepeda.ws> To: freebsd-geom@freebsd.org Subject: Re: configuration/performance question Message-ID: <41EBDBF5.5030609@zepeda.ws> In-Reply-To: <41EBCFAF.2010309@zepeda.ws> References: <41EBCFAF.2010309@zepeda.ws>
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Daniel P. Zepeda wrote: > Hello, > > My original problem was that I was having the problem where my mirror > comes > up DEGRADED when I reboot the machine. Now, I wrote up this long post to > describe the situation and appeal for help from those folks more > intimate with > all this than I, and, on going to subscribe to the list to post this, > I found > the solution on digging further in the archive. I've left the whole thing > intact here, but I found the solution to my problem here; > > http://lists.freebsd.org/pipermail/freebsd-geom/2004-September/000259.html > > > But what I uncovered while having my problem is that if I shut down one > consumer, the newer one I configured that I wanted to work, namely da1 > on gm0, > that an older mirror that I first configured, namely gm0s1, starts up, > with > consumers that I originally set up as da1s1* !! > > My question now is, I have some idea of how GEOM works from the > manpage, it > seems to say that the disk data flows through a set of geoms to/from the > kernel/disks. Will the "ghost" mirror and slices provide extra steps, and > therefore a performance slowdown, or am I totally off base with the > way GEOM > works? (Which is likely since I was only introduced to it last week). > That is, > is the way it is set up now on my box Ok? It works Ok, and I can > reboot now > with a COMPLETE array, but is it messed up internally? I haven't done any > performance tests yet, so I don't know. > > Can anyone enlighten me on this? > > Here is the text of the original message. I'm leaving it here because it > provides a lot of detail on my set up to back up my question above, > although > the problem I outlined below is SOLVED and my question is above. > > Thanks, > DZ > > ****************************************************************************************** > > > <snip> Oh dear, after all that I forgot to mention that the "approaches" I mentioned are detailed here; http://people.freebsd.org/~rse/mirror/ AND turn off HTML email for this account. Sorry.
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