Sorry, my off-list comment seems to have misled. A single pool made up of three mirrored vdevs is perfectly sensible.
The thing you want to be wary of is mixing different kinds of vdev in a single pool. Like mixing mirrors and RAIDZ vdevs in a single pool. But you are not thinking of that. A pool of three mirrored vdevs sounds like a good approach to me. On 17 Sep 2012, at 19:42, Andrew Haycock <[email protected]> wrote: > OK, there's been a lot of very useful information but I think I am > beginning to get a rough shape of what I should, or could do. If I > understand Matthias and Andrew Rae correctly, then hardware RAID 1 is > unnecessary and even undesirable as ZFS will do job for me. > > So I was originally thinking of having 3 mirrors and then creating a > single storage pool using them, but as Andrew has clarified, the > entire pool would be akin to the worst performing vdev and say one of > the mirrors failed, then it would be the same as if all of the mirrors > failed (hope my paraphrasing isn't too inaccurate). > > I can see why that would not be recommended so I may stick to three > separate mirrors (2TB Music and Videos, 1TB Applications and Games, > 500GB personal files and miscellaneous), much like I do now. So am I > talking through my backside if I were to suggest getting say a 120GB > SSD and having the OS installed to that (still thinking OpenIndiana) > and then configuring a ZIL and L2ARC on there also (Sandisk sell a > toggleNAND drive for the same price as many 60GB SSDs)? I don't think > I need a DUMP as I'm not planning on a great deal of experimentation > and would likely not understand the output anyway. > > I'm still processing a huge amount of information right now and many > thanks to Jesus for the link to his article, I'm in the process of > reading it now. However, if I can clarify the crux of what I am going > to do, then I can plan ahead accordingly and my experiments will > reveal more usable data, so I appreciate all of the feedback that I > have thus far received. > > Regards, Andrew > > > ------------------------------------------- > illumos-discuss > Archives: https://www.listbox.com/member/archive/182180/=now > RSS Feed: https://www.listbox.com/member/archive/rss/182180/21175840-87026e51 > Modify Your Subscription: https://www.listbox.com/member/?&; > Powered by Listbox: http://www.listbox.com ------------------------------------------- illumos-discuss Archives: https://www.listbox.com/member/archive/182180/=now RSS Feed: https://www.listbox.com/member/archive/rss/182180/21175430-2e6923be Modify Your Subscription: https://www.listbox.com/member/?member_id=21175430&id_secret=21175430-6a77cda4 Powered by Listbox: http://www.listbox.com
