OpenZFS on Linux and FreeBSD
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Brian Behlendorf aec988734b Command 'zpool create' needs to wait on correct partition names.
When creating partition tables we always need to wait until not
only the /dev/<disk><part> device appears.  But just as importantly
if we were originally given a udev path we need to wait for the
/dev/disk/*/<name>-part<part> symlink to be created.  However,
since the partition naming convention differs between /dev/ and
/dev/disk we determine based on the path which convention to
expect and then wait (for a few seconds) for the device to be
created.  Based on my experience with udev on my test nodes it
takes about 300ms for the devices to be created after being
prompted by the kernel.  This time will vary somehwat based
on how complicated your udev rules are, so for safety I threw
in a factor of 10.  We wait 3 seconds for the devices to appears
before erroring out with a failure.

An additional minor fix includes checking the force flag in the
EFI_GPT_PRIMARY_CORRUPT case.  This allows you to force the
update even in the corrupt partition case.

Finally, since these are Linux only changes I've dropped the
devid code entirely here because I still can't think of why we
would need or want it on a Linux system.
2009-10-21 11:50:42 -07:00
cmd Command 'zpool create' needs to wait on correct partition names. 2009-10-21 11:50:42 -07:00
config Update build system for libblkid integration 2009-10-15 16:25:18 -07:00
doc Refresh zfs-branch 2008-12-05 09:46:11 -08:00
lib Command 'zpool create' needs to wait on correct partition names. 2009-10-21 11:50:42 -07:00
module Merge commit 'refs/top-bases/zfs-branch' into zfs-branch 2009-08-18 14:18:36 -07:00
scripts Merge commit 'refs/top-bases/zfs-branch' into zfs-branch 2009-10-09 15:43:33 -07:00
.topdeps Refresh linux-user-disk 2008-12-05 11:25:15 -08:00
.topmsg Cleanly integrate ZFS tools with libblkid. 2009-10-15 16:28:47 -07:00
AUTHORS Refresh zfs-branch 2008-12-05 09:46:11 -08:00
COPYING Refresh for consistency with COPYRIGHT 2009-06-08 11:59:13 -07:00
COPYRIGHT Readd accidentally dropped COPYRIGHT, it just references the 2009-06-08 11:01:13 -07:00
ChangeLog Refresh ChangeLog 2009-08-04 15:45:48 -07:00
DISCLAIMER Initial Linux ZFS GIT Repo 2008-11-20 12:01:55 -08:00
GIT Refresh type in topgit git://* reference 2009-01-26 21:58:32 -08:00
META Tag zfs-0.4.5. 2009-08-04 14:56:40 -07:00
Makefile.am Install zfs_config, zfs_unconfig, symbols in to correct location. 2009-07-01 12:51:06 -07:00
OPENSOLARIS.LICENSE Add CDDL license file 2008-12-01 14:49:34 -08:00
README Refresh README 2009-01-20 16:16:57 -08:00
TODO Tag zfs-0.4.5 for real 2009-08-04 16:12:28 -07:00
ZFS.RELEASE Rebase master to b121 2009-08-18 11:43:27 -07:00
autogen.sh Core target arch support for conditional compilation of SUBDIRs 2009-06-08 16:07:43 -07:00
configure.ac Additional set of build system tweaks for libefi library. 2009-10-09 16:37:32 -07:00
zfs-modules.spec.in Remove usage of the __id_u macro for portability. 2009-10-05 13:01:01 -07:00
zfs.spec.in Update build system for libblkid integration 2009-10-15 16:25:18 -07:00
zfs_unconfig.h Distro friendly build system / packaging improvements. 2009-07-01 10:53:05 -07:00

README

============================ ZFS KERNEL BUILD ============================

1) Build the SPL (Solaris Porting Layer) module which is designed to
   provide many Solaris APIs in the Linux kernel which are needed
   by ZFS.  To build the SPL:

        tar -xzf spl-x.y.z.tgz
        cd spl-x.y.z
        ./configure --with-linux=<kernel src>
        make
        make check <as root>

2) Build ZFS, this port is based on build specified by the ZFS.RELEASE
   file.  You will need to have both the kernel and SPL source available.
   To build ZFS for use as a Linux kernel module.

        tar -xzf zfs-x.y.z.tgz
        cd zfs-x.y.z
        ./configure --with-linux=<kernel src> \
                    --with-spl=<spl src>
        make
        make check <as root>

============================ ZPIOS TEST SUITE ============================

3) Provided is an in-kernel test application called zpios which can be
   used to simulate a parallel IO load.  It may be used as a stress 
   or performance test for your configuration.  To simplify testing
   scripts provided in the scripts/ directory which provide a few
   pre-built zpool configurations and zpios test cases.  By default
   'make check' as root will run a simple test against several small
   loopback devices created in /tmp/.

       cd scripts
       ./zfs.sh					# Load the ZFS/SPL modules
       ./zpios.sh -c lo-raid0.sh -t tiny -v 	# Tiny zpios loopback test
       ./zfs.sh -u				# Unload the ZFS/SPL modules

Enjoy,
Brian Behlendorf <behlendorf1@llnl.gov>