Date: Tue, 19 Jul 2011 14:49:50 -0700 From: Jeremy Chadwick <freebsd@jdc.parodius.com> To: Kevin Oberman <kob6558@gmail.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: <20110719214949.GA28709@icarus.home.lan> In-Reply-To: <CAN6yY1ud9hJvufhabuNP9mK1qkS5sPLkzPvfEfOm5BQP_hQ1sw@mail.gmail.com> References: <CAN6yY1uaUqk2ifiNViJyMFJWf60a4DmCiVs3Z=--_TjtzseABQ@mail.gmail.com> <20110718234124.GA5626@icarus.home.lan> <20110719224126.00000a25@unknown> <CAN6yY1ud9hJvufhabuNP9mK1qkS5sPLkzPvfEfOm5BQP_hQ1sw@mail.gmail.com>
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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-optimized-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 = B0063FE7 > > http://www.FreeBSD.org ? ? ? netchild @ FreeBSD.org ?: PGP ID = 72077137 > > > > 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 ^^^^^^^^ ^^^^^^^^ Where did this number come from? Did you mean 65536? 65560 would not be properly aligned. > 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 time! Agreed -- thanks for the advice, Alexander. -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, US | | Making life hard for others since 1977. PGP 4BD6C0CB |
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