Date: Tue, 19 Jul 2011 15:17:17 -0700 From: Kevin Oberman <kob6558@gmail.com> To: Jeremy Chadwick <freebsd@jdc.parodius.com> Cc: Alexander Leidinger <Alexander@leidinger.net>, "freebsd-stable@freebsd.org Stable" <freebsd-stable@freebsd.org> Subject: Re: Status of support for 4KB disk sectors Message-ID: <CAN6yY1th0agqVscMUhEtXFsM-QxF9JDqL_QWjdLziRYoY6vOSg@mail.gmail.com> In-Reply-To: <20110719214949.GA28709@icarus.home.lan> References: <CAN6yY1uaUqk2ifiNViJyMFJWf60a4DmCiVs3Z=--_TjtzseABQ@mail.gmail.com> <20110718234124.GA5626@icarus.home.lan> <20110719224126.00000a25@unknown> <CAN6yY1ud9hJvufhabuNP9mK1qkS5sPLkzPvfEfOm5BQP_hQ1sw@mail.gmail.com> <20110719214949.GA28709@icarus.home.lan>
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On Tue, Jul 19, 2011 at 2:49 PM, Jeremy Chadwick <freebsd@jdc.parodius.com> wrote: > On Tue, Jul 19, 2011 at 02:33:27PM -0700, Kevin Oberman wrote: >> On Tue, Jul 19, 2011 at 1:41 PM, Alexander Leidinger >> <Alexander@leidinger.net> wrote: >> > On Mon, 18 Jul 2011 16:41:24 -0700 Jeremy Chadwick >> > <freebsd@jdc.parodius.com> wrote: >> > >> >> But the currently "known method" is to use gnop(8). ?Here's an >> >> example: >> >> >> >> http://www.leidinger.net/blog/2011/05/03/another-root-on-zfs-howto-op= timized-for-4k-sector-drives/ >> >> >> >> Now, that's for ZFS, but I'm under the impression the exact same is >> >> needed for FFS/UFS. >> > >> > Info: gnop will not work for FFS/UFS because gnop is a temporary >> > solution (needs to be done by hand at each reboot). For FFS/UFS you >> > need to align the slice/partition and chose a good blocksize/fragsize >> > combination (e.g. 32k/4k). >> > >> > Bye, >> > Alexander. >> > >> > -- >> > http://www.Leidinger.net ? ?Alexander @ Leidinger.net: PGP ID =3D B006= 3FE7 >> > http://www.FreeBSD.org ? ? ? netchild @ FreeBSD.org ?: PGP ID =3D 7207= 7137 >> > >> >> Thanks, Alexander. >> >> This is what I had expected after reading the man pages, though I >> would think -b 65560 -f 8192' would be a bit more reasonable in this > =A0 =A0 =A0 =A0 =A0 =A0 =A0^^^^^^^^ > =A0 =A0 =A0 =A0 =A0 =A0 =A0^^^^^^^^ > Where did this number come from? =A0Did you mean 65536? =A065560 would no= t > be properly aligned. Ack! Fingers and brain out of sync. Yes, 65536 is what I meant. >> day of bloated file formats. it's been years since I have hit a >> problem with lack of inodes. Probably around 1993 on an old >> SparcStation 1 running SunOS and then only due to a bad assumption I >> made when 'newfs'ing it. >> >> Again, thanks for the advice. At very least it will save me a bit of tim= e! > > Agreed -- thanks for the advice, Alexander. > > -- > | Jeremy Chadwick =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0= =A0 =A0jdc at parodius.com | > | Parodius Networking =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 http://= www.parodius.com/ | > | UNIX Systems Administrator =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 Mountain= View, CA, US | > | Making life hard for others since 1977. =A0 =A0 =A0 =A0 =A0 =A0 =A0 PGP= 4BD6C0CB | > > --=20 R. Kevin Oberman, Network Engineer - Retired E-mail: kob6558@gmail.com
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