File versions and ZFS

Moderators: jhartley, MSR734, nola

File versions and ZFS

Post by si-ghan-bi » Sun Sep 16, 2012 7:56 am

Hi,
I noticed (I was warned by Textedit) that the ZFS volume I'm using does not support File versions (the new 10.7+ feature).
I think it is bound to HFS+, unfortunately, but this is funny, because with the ZFS snapshots and/or copy on write, it would be much cleaner and lighter.
Is there hope, ZFS will support this, or is this something ZEVO developers cannot change at all?
si-ghan-bi Offline


 
Posts: 145
Joined: Sat Sep 15, 2012 5:55 am

Re: File versions and ZFS

Post by holzi » Sun Sep 16, 2012 11:01 am

This is hardwired in HFS+ in a scary way. So I don't think this can be ported to zfs and you can't just snapshot on file if it changes anyway.
holzi Offline


 
Posts: 7
Joined: Sat Sep 15, 2012 4:46 am

Re: File versions and ZFS

Post by si-ghan-bi » Sun Sep 16, 2012 1:15 pm

I expected it. Too bad.
si-ghan-bi Offline


 
Posts: 145
Joined: Sat Sep 15, 2012 5:55 am

permanent version storage

Post by grahamperrin » Tue Sep 18, 2012 1:28 am

permanent version storage on ZFS

As I understand it, there are no technical obstacles on the ZEVO side.

Please use Apple's feedback form http://www.apple.com/feedback/macosx.html to request support for permanent version storage on ZEVO ZFS.

(My own request was made in March 2012.)
grahamperrin Offline

User avatar
 
Posts: 1596
Joined: Fri Sep 14, 2012 10:21 pm
Location: Brighton and Hove, United Kingdom

Re: File versions and ZFS

Post by chriswayg » Mon Nov 05, 2012 5:10 am

'File Versions' work for me in Mac OS X 10.8.2. Has anything changed since this was posted?

I tested it in TextEdit and in Preview. In both I get the Time Machine-like interface and am able to restore earlier or later versions.
chriswayg Offline


 
Posts: 19
Joined: Sun Nov 04, 2012 8:27 am

Re: File versions and ZFS

Post by grahamperrin » Mon Nov 05, 2012 12:00 pm

The limitation is present in OS X 10.8.2.

Apple's alert about permanent version storage may not appear until you close a file that is stored on ZFS.
grahamperrin Offline

User avatar
 
Posts: 1596
Joined: Fri Sep 14, 2012 10:21 pm
Location: Brighton and Hove, United Kingdom

Re: File versions and ZFS

Post by amteza » Mon Nov 05, 2012 12:49 pm

grahamperrin wrote:The limitation is present in OS X 10.8.2.

Apple's alert about permanent version storage may not appear until you close a file that is stored on ZFS.

Just tested with TextEdit in a ZFS filesystem and versions is working fine. In my Macbook Pro it didn't work, it's at least curious...
amteza Offline


 
Posts: 22
Joined: Wed Oct 17, 2012 4:40 am
Location: Spain

Re: File versions and ZFS

Post by chriswayg » Mon Nov 05, 2012 1:17 pm

Graham, maybe I am doing something different or using different applications. I cannot find problems in regards to File Versions and do not see any warnings in TextEdit and Preview, which I tested on OS X 10.8.2 with a ZFS pool on a Firewire drive attached to a MacBook Pro. The files were definitely closed.

Here is what I did: I created a text file in TextEdit. Made a bunch of changes, saved in between. Opened and closed the application. Unmounted and remounted the ZFS drive. Reopened the files, went to "Browse all versions", tried another version etc.. Likewise I tried this with a photo on the ZFS drive. I moved the photo to another folder after making some changes and 'Versions' works just fine. - Tried the same on the main OS partition and it basically functioned the same way.

The only difference I observed, was that files on the OS drive would often show another sub-menu entry under 'Revert To', besides the 'Browse All Versions...", which points to 'Previous Save' or 'Last Opened', which I have not seen for files on the ZFS volume. - 'Browse All Versions..." functioned exactly the same on ZFS as on the HFS+ partition, showing correct modifications times on versions visible in the time machine style interface.
chriswayg Offline


 
Posts: 19
Joined: Sun Nov 04, 2012 8:27 am

Re: File versions and ZFS

Post by grahamperrin » Mon Nov 05, 2012 2:22 pm

The two files at http://www.wuala.com/grahamperrin/publi ... de=gallery demonstrate the limitation of OS X 10.8.2 with a new pool created by ZEVO Community Edition 1.1.1. Preview 6.0.1 (765.4) is used.

chriswayg wrote:… 'Browse All Versions..." functioned exactly the same on ZFS …


An extract from the screenshot on Wuala:

extract.png
extract.png (110.05 KiB) Viewed 129 times


– that effect is evident only after the edition is saved and closed.

amteza or chriswayg, please: with the ZFS file systems that appear to work for you, can you record the screen whilst demonstrating compatibility?

Thanks
Last edited by grahamperrin on Mon Nov 05, 2012 9:46 pm, edited 3 times in total.
grahamperrin Offline

User avatar
 
Posts: 1596
Joined: Fri Sep 14, 2012 10:21 pm
Location: Brighton and Hove, United Kingdom

Re: File versions and ZFS

Post by amteza » Mon Nov 05, 2012 4:35 pm

grahamperrin wrote:The two files at http://www.wuala.com/grahamperrin/publi ... de=gallery demonstrate the limitation of OS X 10.8.2 with a new pool created by ZEVO Community Edition 1.1.1. Preview 6.0.1 (765.4) is used.

amteza or chriswayg, please: with the ZFS file systems that appear to work for you, can you record the screen whilst demonstrating compatibility?

Thanks

Yeah, of course, give me some minutes sir.
amteza Offline


 
Posts: 22
Joined: Wed Oct 17, 2012 4:40 am
Location: Spain

Next

Return to General Discussion

Who is online

Users browsing this forum: ilovezfs and 0 guests

cron