I'm a zfs noob so I have to give a big thank you to ilovezfs for the work
he has done. Using his zfsadm script I was able to install openzfs without
a hitch (so far).
I installed a zvol formatted to hfs+ on a raidz2 4x2TB zpool which I am
using as a timemachine archive (one of two).
It's still early and I haven't stressed the pool but TimeMachine appears to
working just fine.
Congrats to all the contributors. It looks like progress is being made.
On Tuesday, February 18, 2014 8:33:19 AM UTC-5, jasonbelec wrote:
> Been testing Zvols, HFS+ formatted and Spotlight does seem to like them,
> which technically means, Mail, iPhoto, etc., etc., can function normally.
> Jason Belec
> Sent from my iPad
> The best description of the current status of the Open ZFS port is here:
> of osx.zfs Dec
>> Can I use your script to compile and install OpenZFS
> Yes you can use the script to install it, as outlined here
> maybe even mount the ZEVO pools…
> Yes pool version 5000 is backwards compatible with pool version 28. It is
> basically pool version 28 plus feature flags:
> It may be a better idea to start with a fresh pool so that you can take
> advantage of lz4 compression.
> zpool create -o ashift=13 -O casesensitivity=insensitive -O
> compression=lz4 -O atime=off -O normalization=formD -f tank …
> If you intend never to replace any of the disks with SSD, ashift=12.
>> and expect it to be stable?
> Yes, it is pretty stable at this point. You might rarely hit a kernel
> panic or not be able to export the pool with a forced shutdown, neither of
> which should cause any actual harm to your data.
> I would REALLY like to have features like case insensitivity and UTF8
> Yes it has those features.
> Also it would be nice if the mounted filesystems were actually visible in
> The default is for the pool foo to mount at /foo, and a dataset foo/bar to
> mount at /foo/bar. I explained the reason we do not use /Volumes (at least
> not yet) here: https://github.com/zfs-osx/zfs/issues/64
> Even though foo mounts at /foo not /Volumes/foo, it will still appear as a
> volume with a disk icon in Finder. Ditto for foo/bar, etc.
> Can I use it for my iPhoto, iTunes and general file storage?
> Yes you can use it for iPhoto, iTunes and general file storage, but do not
> use it for an entire home directory yet.
> Can it be scanned by Spotlight?
> No Spotlight does not work yet. However, if you want Spotlight, you can
> use either a sparsebundle or zvol. zvols are not available on ZEVO, so ZEVO
> users are often unfamiliar with them. Here's a description of their use on
> The only difference on OS X would be that you'd want to use only -b 512or -b
> 4096 (our default is 4096), and an HFS+ file system.
> Thank you, if OpenZFS is not an option for everyday use then I will go for
> If you have independent backups, then this is primarily a question of
> whether you value stability or new features more. If you do not have
> independent backups, this conversation is moot because your one and only
> concern should be creating an independent backup of all of your data. By
> "independent backups," I mean that if every disk in your zpool is tossed in
> the swimming pool, you still have your data because it is available
> somewhere entirely separate from your zpool. Ideally, the backup is
> offsite, or you have both an independent local back and an independent
> offsite backup.
> Thank you!
> You're welcome.
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