zfs discuss - Apr 2012 - Aaron Toponce: Install ZFS on Debian GNU/Linux

fyi

Sent to you by David E. via Google Reader: Aaron Toponce: Install ZFS
on Debian GNU/Linux via Planet Ubuntu on 4/17/12

Quick post on installing ZFS as a kernel module, not FUSE, on Debian
GNU/Linux. The documents already exist for getting this going, I?m just
hoping to spread this to a larger audience, in case you are unaware
that it exists.

First, the Lawrence Livermore National Laboratory has been working on
porting the native Solaris ZFS source to the Linux kernel as a kernel
module. So long as the project remains under contract by the Department
of Defense in the United States, I?m confident there will be continuous
updates. You can track the progress of that porting at
http://zfsonlinux.org.

Now, download the SPL and ZFS sources. I?m running the latest RC, which
seems to be quite stable:

$ mkdir ~/src/{spl,zfs} $ cd ~/src/spl $ wget
http://github.com/downloads/zfsonlinux/spl/spl-0.6.0-rc8.tar.gz $ cd
~/src/zfs $ wget
http://github.com/downloads/zfsonlinux/zfs/zfs-0.6.0-rc8.tar.gz

At this point, you will need to install the dependencies for SPL, then
go ahead and compile and make the necessary .deb files:

$ sudo aptitude install build-essential gawk alien fakeroot
linux-headers-$(uname -r) $ cd ~/src/spl $ tar -xf spl-0.6.0-rc8.tar.gz
$ cd spl-0.6.0-rc8 $ ./configure $ make deb

Now do the same for ZFS:

$ sudo aptitude install zlib1g-dev uuid-dev libblkid-dev libselinux-dev
parted lsscsi $ cd ~/src/zfs $ tar -xf zfs-0.6.0-rc8.tar.gz $ cd
zfs-0.6.0-rc8 $ ./configure $ make deb

You should have built both the SPL and ZFS Debian packages, at which
point you can install:

$ sudo dpkg -i ~/src/{spl,zfs}/*.deb

If you?re running Ubuntu, which I know most of you are, you can install
the packages from the Launchpad PPA https://launchpad.net/~zfs-native.

A word of note: the manpages get installed to /share/man/. I found this
troubling. You can modify your $MANPATH variable to
include /share/man/man8/, or by creating symlinks, which is the
approach I took:

# cd /usr/share/man/man8/ # ln -s /share/man/man8/zdb.8 zdb.8 # ln
-s /share/man/man8/zfs.8 zfs.8 # ln -s /share/man/man8/zpool.8 zpool.8

Now, make your zpool, and start playing:

$ sudo zpool create test raidz sdd sde sdf sdg sdh sdi

It is stable enough to run a ZFS root filesystem on a GNU/Linux
installation for your workstation as something to play around with. It
is copy-on-write, supports compression, deduplication, file atomicity,
off-disk caching, encryption, and much more. At this point,
unfortunately, I?m convinced that ZFS as a Linux kernel module will
become ?stable? long before Btrfs will be stable in the mainline
kernel. Either way, it doesn?t matter to me. Both are Free Software,
and both provide the long needed features we?ve needed with today?s
storage needs. Competition is healthy, and I love having choice. Right
now, that choice might just be ZFS.

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2012-04-18 6:57, David E. wrote:
> Now, make your zpool, and start playing:
>
> $ sudo zpool create test raidz sdd sde sdf sdg sdh sdi
>
> It is stable enough to run a ZFS root filesystem on a GNU/Linux
> installation for your workstation as something to play around with. It
> is copy-on-write, supports compression, deduplication, file atomicity,
> off-disk caching, encryption, and much more.

Hmmm, how come they have encryption and we don''t?
Can it be backported to illumos from Linux (maybe via BSD),
or do the license incompatibilities forbid that? ;)

Can GNU/Linux boot off raidz roots?

Overall - impressive and interesting,
//Jim

On Wed, Apr 18, 2012 at 6:43 PM, Jim Klimov <jimklimov at cos.ru>
wrote:
> Hmmm, how come they have encryption and we don''t?
Cause the author doesn''t really try it :)

If he did, he would''ve known that encryption doesn''t work
(unless you
encrypt the underlying storage with luks, which doesn''t count). And
that Ubuntu ppa is also usable on debian, so that he didn''t have to
compile from source or worry about misplaced manpages.
> Can GNU/Linux boot off raidz roots?
"boot" as in "root (/) located on raidz", yes.

"boot" as in "the whole disk including /boot is on raidz",
no, due to
grub2 limitation. /boot still needs to be on a separate ext2/3/4
partiition (recommended), or on a non-raidz pool (possibly with some
additional hacks).

-- 
Fajar

>Hmmm, how come they have encryption and we don''t?
As in Solaris releases, or some other "we"?

http://docs.oracle.com/cd/E23824_01/html/821-1448/gkkih.html
https://blogs.oracle.com/darren/entry/my_11_favourite_solaris_11

Thanks,

Cindy

On 04/18/12 05:43, Jim Klimov wrote:
> 2012-04-18 6:57, David E. wrote:
>> Now, make your zpool, and start playing:
>>
>> $ sudo zpool create test raidz sdd sde sdf sdg sdh sdi
>>
>> It is stable enough to run a ZFS root filesystem on a GNU/Linux
>> installation for your workstation as something to play around with. It
>> is copy-on-write, supports compression, deduplication, file atomicity,
>> off-disk caching, encryption, and much more.
>
>
> Hmmm, how come they have encryption and we don''t?
> Can it be backported to illumos from Linux (maybe via BSD),
> or do the license incompatibilities forbid that? ;)
>
> Can GNU/Linux boot off raidz roots?
>
> Overall - impressive and interesting,
> //Jim
> _______________________________________________
> zfs-discuss mailing list
> zfs-discuss at opensolaris.org
> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

On Wed, Apr 18, 2012 at 7:54 AM, Cindy Swearingen
<cindy.swearingen at oracle.com> wrote:
>>Hmmm, how come they have encryption and we don''t?
>
> As in Solaris releases, or some other "we"?
I would guess he means Illumos, since it''s mentioned in the very next
sentence.  :)

"Hmmm, how come they have encryption and we don''t?
Can it be backported to illumos ..."

It''s too bad Oracle hasn''t followed through (yet?) with their
promise
to open-source the ZFS (and other CDDL-licensed?) code in Solaris 11.
:(
-- 
Freddie Cash
fjwcash at gmail.com

Oracle never promised anything.  A leaked internal memo does not signify an
official company policy or statement.
On Apr 18, 2012 11:13 AM, "Freddie Cash" <fjwcash at gmail.com>
wrote:
> On Wed, Apr 18, 2012 at 7:54 AM, Cindy Swearingen
> <cindy.swearingen at oracle.com> wrote:
> >>Hmmm, how come they have encryption and we don''t?
> >
> > As in Solaris releases, or some other "we"?
>
> I would guess he means Illumos, since it''s mentioned in the very
next
> sentence.  :)
>
> "Hmmm, how come they have encryption and we don''t?
> Can it be backported to illumos ..."
>
> It''s too bad Oracle hasn''t followed through (yet?) with
their promise
> to open-source the ZFS (and other CDDL-licensed?) code in Solaris 11.
> :(
> --
> Freddie Cash
> fjwcash at gmail.com
> _______________________________________________
> zfs-discuss mailing list
> zfs-discuss at opensolaris.org
> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
>
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2012-04-18 18:54, Cindy Swearingen wrote:
>>Hmmm, how come they have encryption and we don''t?
> As in Solaris releases, or some other "we"?
With all due respect, I did not mean to start a flame war, so
I''ll frantically try to stomp out the sparks ;)

Still, this is a "zfs" "discuss" list at
"open""solaris"."org"
It is here to discuss ZFS, a technology available in a number
of operating systems, as you do know too well, including open
systems as the domain name implies.

Since all of these use ZFS code based on the one that the
"opensolaris.org" project provided at some time, and most
of other systems (including Solaris 10 AFAIK) got stuck at
ZFSv28 or older, the generic "we" at the *open*-solaris
derivate systems don''t have some features that Oracle
completed in its own fork into closed proprietary code ;)

In the beginning it was my wishful thinking that encryption
code and maybe some other newbies got legally leaked into
Linux, and if they were there, then they might be legally
included into other ZFS source code projects.

I hope this subject is closed for now ;( without personal
gripes ;)

//Jim

On Wed, 18 Apr 2012, Jim Klimov wrote:
> Since all of these use ZFS code based on the one that the
> "opensolaris.org" project provided at some time, and most
> of other systems (including Solaris 10 AFAIK) got stuck at
> ZFSv28 or older, the generic "we" at the *open*-solaris
Agree with all you said except that Solaris 10 has support for pool 
version 29.

Bob
-- 
Bob Friesenhahn
bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/

On 04/18/12 17:28, Jim Klimov wrote:
> In the beginning it was my wishful thinking that encryption
> code and maybe some other newbies got legally leaked into
> Linux, and if they were there, then they might be legally
> included into other ZFS source code projects.
Not Linux per say but there is another (readonly) implementation of ZFS 
encryption:

http://bazaar.launchpad.net/~vcs-imports/grub/grub2-bzr/view/head:/grub-core/fs/zfs/zfscrypt.c

-- 
Darren J Moffat