On Fri, Feb 8, 2013 at 11:42 AM, Reginald Beardsley <[email protected]> wrote: > > > --- On Fri, 2/8/13, Gary Driggs <[email protected]> wrote: > >> From: Gary Driggs <[email protected]> >> Subject: Re: [discuss] The cylinder model & 4k sectors >> To: "[email protected]" <[email protected]> >> Date: Friday, February 8, 2013, 9:53 AM >> On Feb 8, 2013, at 7:35 AM, Reginald >> Beardsley wrote: >> >> > That is probably going to get torn down and a 4th disk >> added so I can run /export on RAIDZ2 and be able to take a 2 >> disk failure on a 4 disk system w/o loss of data >> >> Have you considered the option of installing the OS on a >> server grade USB drive? >> > > I assume you mean "thumb drive". I rejected that because it's a single point > of failure. There's no guarantee that it wouldn't corrupt the RAIDZ pool > during a failure. > > A 10 GB rpool in s0 is 0.5% of a 2 TB disk. So it's under $3 to have a 4-way > mirrored rpool to support a 3.5+ TB RAIDZ2 /export. That's cheaper than a > USB flash and more robust. > > Have Fun! > Reg
I suggest you have a look at this prior work: 2949 format(1m) should support megabyte-aligned partitions http://www.yalms.org/cr/illumos-2949/ There were some discussions of it about 6 months ago on developers (search for issue 2949) http://www.listbox.com/member/archive/182179/sort/time_rev/?search_for=2949 Basically, that was a start on the problem, but I missed some of the places that know about geometry. The fix needs to "hit them all". Sorry, I don't have much time to work on this right now, so I'd welcome you or anyone else taking it over. Thanks, -- Gordon Ross <[email protected]> Nexenta Systems, Inc. www.nexenta.com Enterprise class storage for everyone ------------------------------------------- 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
