Date: Fri, 1 May 2015 02:43:57 +1000 From: Jason Birch <jbirch@jbirch.net> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: Possible (or smart) to put freebsd-boot on USB stick for root-on-ZFS? Message-ID: <CAA=KUhsHQPj9erdzv3Gf4SxO0pNGE_PZH0aLfOP5k1XCmF8%2BHg@mail.gmail.com> In-Reply-To: <CAA=KUhvNQHPsSPy9wJDrp7TJhqh2u3ZsGgykvbM5PrHB3_xbVQ@mail.gmail.com> References: <CAA=KUhvYfhJ9i_CU6Lhni0EB03zjPMBpBHOHLJ92THVs2owZxw@mail.gmail.com> <alpine.BSF.2.20.1503240735350.21722@wonkity.com> <CAA=KUhvNQHPsSPy9wJDrp7TJhqh2u3ZsGgykvbM5PrHB3_xbVQ@mail.gmail.com>
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> > In my head I thought it would work okay - 1064 512B blocks is a round 133 > 4KB blocks, which these SSDs report as their stripe size. Nonetheless, > fragmentation of the pool is off the charts... > That being said, I did foolishly fill this thing to 80% with a quick dump of another FS, so it's entirely possible my math is fine and things are aligned, and I'm just seeing pathological behaviour of a nearly-full copy-on-write file system.
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