On Mon, Nov 17, 2008 at 2:36 PM, Eric Schrock <[EMAIL PROTECTED]> wrote:
> On Mon, Nov 17, 2008 at 01:38:29PM -0600, Tim wrote: > > > > And this passage: > > "If there is a broken or missing disk, we don't let you proceed without > > explicit confirmation. The reason we do this is that once the storage > pool > > is configured, there is no way to add those disks to the pool without > > changing the RAS and performance characteristics you specified during > > configuration." > > This is what I meant by "individual disks or arbitrarily populated > JBODs" in my last message. We don't support addiing JBODs with broken > or missing disks, but full (or half) populated JBODs can be added at > will. > > > The post as a whole makes it unclear if you are able to add more disk in > the > > future or not without changing your RAS/performance. That specific > example, > > after re-reading, appears to be referring to the "one broken disk(s)". I > > guess everything I've read about fishworks talks about "making your > choice" > > at first configuration, and doesn't really make it clear what the process > or > > requirements are for adding disk in the future. Knowing zfs, I made the > > assumption that it was possible via means like you've described above. > If I > > had no exposure to zfs though, it might be a bit less clear, and I guess > in > > this case, I wasn't 100% positive even with the background I have. > > > > If I've missed something, it wouldn't be the first time ADD has gotten > the > > best of me, so I apologize. Feel free to correct as you see fit. > > I can update the blog entry if it's misleading. I assumed that it was > implicit that the absence of the above (missing or broken disks) meant > supported, but I admit that I did not state that explicitly, and not in > the context of adding storage. > > Thanks, > > - Eric > > -- > Eric Schrock, Fishworks > http://blogs.sun.com/eschrock > I follow exactly what you mean after the clarification in this thread. I think it would be helpful for other readers if you put a blurb of some sort like: "when adding storage, in order to maintain RAS/performance, we require you to add either a half or full JBOD at a time". Just my .02 :) --Tim
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