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Brian Behlendorf ca5fd24984 Limit maximum ashift value to 12 
While we initially allowed you to set your ashift as large as 17
(SPA_MAXBLOCKSIZE) that is actually unsafe.  What wasn't considered
at the time is that each uberblock written to the vdev label ring
buffer will be of this size.  Now the buffer is statically sized
to 128k and we need to be able to fit several uberblocks in it.
With a large ashift that becomes a problem.

Therefore I'm reducing the maximum configurable ashift value to 12.
This is large enough for the 4k sector drives and small enough that
we can still keep the most recent 32 uberblock in the vdev label
ring buffer.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #425
2011-11-11 14:50:48 -08:00
cmd Simplify BDI integration 2011-11-08 10:19:03 -08:00
config Linux 3.1 compat, fops->fsync() 2011-11-10 10:03:08 -08:00
dracut Simplify BDI integration 2011-11-08 10:19:03 -08:00
etc Simplify BDI integration 2011-11-08 10:19:03 -08:00
include Simplify BDI integration 2011-11-08 10:19:03 -08:00
lib Limit maximum ashift value to 12 2011-11-11 14:50:48 -08:00
man Simplify BDI integration 2011-11-08 10:19:03 -08:00
module Limit maximum ashift value to 12 2011-11-11 14:50:48 -08:00
patches Add build system 2010-08-31 13:41:27 -07:00
scripts Simplify BDI integration 2011-11-08 10:19:03 -08:00
udev Simplify BDI integration 2011-11-08 10:19:03 -08:00
.gitignore Ignore unsigned module build products 2010-03-09 14:14:09 -08:00
AUTHORS Add "ashift" property to zpool create 2011-06-17 16:35:49 -07:00
autogen.sh Make autogen.sh executable 2011-07-26 10:15:35 -07:00
ChangeLog Add build system 2010-08-31 13:41:27 -07:00
configure Linux 3.1 compat, fops->fsync() 2011-11-10 10:03:08 -08:00
configure.ac Fix autoconf variable substitution in init scripts. 2011-08-19 16:26:14 -07:00
COPYING Relocate COPYING+COPYRIGHT, remove README cruft 2008-12-01 15:34:53 -08:00
COPYRIGHT Update COPYRIGHT to reference zpios CDDL exceptions. 2010-05-18 14:25:28 -07:00
DISCLAIMER Update COPYRIGHT and DISCLAIMER. 2010-05-18 10:32:23 -07:00
Makefile.am Move udev rules from /etc/udev to /lib/udev 2011-08-08 16:21:10 -07:00
Makefile.in Simplify BDI integration 2011-11-08 10:19:03 -08:00
META Prep zfs-0.6.0-rc6 tag 2011-10-06 14:10:45 -07:00
OPENSOLARIS.LICENSE Add CDDL license file 2008-12-01 14:49:34 -08:00
README.markdown Fix markdown rendering 2010-09-15 09:09:37 -07:00
zfs_config.h.in Linux 3.1 compat, fops->fsync() 2011-11-10 10:03:08 -08:00
zfs-modules.spec.in Fix depmod warning 2011-11-10 10:26:06 -08:00
zfs-script-config.sh.in Unconditionally load core kernel modules 2010-11-11 11:38:25 -08:00
ZFS.RELEASE Update to onnv_147 2010-08-26 14:24:34 -07:00
zfs.spec.in Include distribution in release 2011-10-19 11:43:27 -07:00

README.markdown

Native ZFS for Linux! ZFS is an advanced file system and volume manager which was originally developed for Solaris. It has been successfully ported to FreeBSD and now there is a functional Linux ZFS kernel port too. The port currently includes a fully functional and stable SPA, DMU, and ZVOL with a ZFS Posix Layer (ZPL) on the way!

$ ./configure
$ make pkg

Full documentation for building, configuring, and using ZFS can be found at: http://zfsonlinux.org