Re: ZFS MFC heads down

2009-05-21 Thread Dillon Kass

On 5/21/09 4:15 PM, Kip Macy wrote:

Your snapshots are using two thirds of your used capacity. 'df' only
knows about the mounted file system.

Cheers,
Kip

   
On that subject, if anyone isn't aware this version of zfs has nicer 
space accounting.


you should check out the output of
zfs list -o space

SUPER AWESOME HUH!?

unfortunately the fancy new space accounting only works on datasets 
created on a pool supporting it, so all of us who upgraded our pools 
will not see any output.


for example

NAMEAVAIL   USED  USEDSNAP  USEDDS  USEDREFRESERV  USEDCHILD
rpool/ROOT/snv_107  8.86G  3.80G -   -  -  -

however you can just create a new dataset with zfs create to take 
advantage of the new space accounting. then you'll get real output like


NAMEAVAIL   USED  USEDSNAP  USEDDS  USEDREFRESERV  USEDCHILD
phoenix/rsync/cifs  70.2G   272G  212G   59.3G  0  0

I can easily see here that I have 212G of snapshots for this dataset.

I just thought I would throw that out there for anyone who didn't know 
about it yet.

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Re: RFT: ZFS MFC

2009-05-16 Thread Dillon Kass

On 5/15/09 8:02 PM, Kip Macy wrote:

I've MFC'd ZFS v13 to RELENG_7 in a work branch. Please test if you can.

http://svn.freebsd.org/base/user/kmacy/ZFS_MFC/

The standard disclaimers apply. This has only been lightly tested in a
VM. Please do not use it with data you care about at this time.


Thanks,
Kip

   
I created a pool on 7.1, created some datasets, populated them, made 
some snapshots. Upgraded to v13 deleted a few snapshots, created a 
clone, promoted a clone, deleted and created some new datasets.


So far so good. I'll try to make something break!
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Re: ZFS root File System

2009-02-28 Thread Dillon Kass

Xin LI wrote:

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Dr. Aharon Friedman wrote:
  
(note the fact that

/ can not be easily rolled back to previous state using ZFS's snapshot
feature, and can not be easily switched between clones


I actually keep a full minimal install on my UFS /bootdisk slice (which 
i use geom mirror for) and then symlink /bootdisk/boot to /boot on the 
ZFS /. This way should I ever need to rollback ZFS / I can quickly 
change the vfs.root.mountfrom to /dev/mirror/gm0 and then have a base 
system living entirely on UFS. If you do it that way you can easily 
rollback your ZFS / should you need to and then just reboot back to the 
ZFS / when you're done.


Cheers,
Dillon


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Re: MFC ZFS: when?

2008-11-25 Thread Dillon Kass
I'm very excited and can't wait! I have this clone I need to promote but 
I'm encountering this bug

http://bugs.opensolaris.org/view_bug.do?bug_id=6738349

Hopefully it gets mfc before the diff between the real fs and the clone 
becomes so large that my pool fills up :-)

I should have a few months before that happens though.

On 11/24/08 6:21 PM, Andrew Snow wrote:


The problem appears to be that the latest ZFS commit in 8-CURRENT 
relies on too many other new features that aren't in 7.1.


After 7.1 is released, then perhaps ZFS and the other new code it 
requires can be moved into 7-STABLE?


- Andrew

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Re: ZFS version 8 on stable?

2008-06-13 Thread Dillon Kass
There's nothing you can do right now except for wait. By default the zfs 
implementation on osx will create a zfs version 6 zpool (to retain 
compat with the read-only kext that ships with 10.5) but once you've 
upgraded you can't go back.


There is a newer version of zfs for freebsd but it hasn't been commited 
yet. See http://kerneltrap.org/FreeBSD/BSDCan_2008_ZFS_Internals


Your only option is to wait until this is committed or patches are 
offered at least.

pjd is the man so it shouldn't be too long :-)


Timothy Wilson wrote:

Hello everyone,

I know -stable is supposed to be, well, stable, but I seem to be in a
bit of a pickle.

I'm trying to import my zfs file system from a Macintosh machine. It
was created at version 8. Being new to zfs, I did not realise that
FreeBSD would be running at a lower version; I thought zfs was zfs! Of
course, trying to import my zpool fails, complaining that the version
is too new.

freebsd# zpool import bigstore
cannot import 'bigstore': pool is formatted using a newer ZFS version

So either I want to downgrade the zpool, or upgrade zfs on FreeBSD.
Does anyone know if I'll be able to import zfs v8, or am I wasting my
time? I'd prefer to follow -stable, but if I must follow -current,
then golly goshkins, I'll have no choice!

Kind regards,
Timothy.
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