Re: [Dovecot] Dovecot + FreeBSD-7.2 + ZFS ?

2009-06-08 Thread Dave McGuire 


  For what it's worth, I've been running Dovecot (and a whole slew  
of other stuff) on ZFS for about a year now, but under Solaris, not  
FreeBSD.  Very fast, no stability problems. It's being hit pretty  
hard and handles it well.  Just FYI.


 -Dave

On Jun 8, 2009, at 6:01 AM, Frank Bonnet wrote:

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Hello

Thanks for the feedback ! I'll plan to run it at 7.2
and of course certainly not on a production server
without numerous tests !


Dino Ming wrote:
Just to let you guys know, I have nightmare with FreeBSD 7.0- 
RELEASE + ZFS.

It brought to me an unrecoverable filesystem error.
It is a good technology. But I would wait for it to be more mature  
before

production.

I would highly suggest to run a stress test if you really bring it  
to production

state.

Dino.

Frank Bonnet wrote:
Geoffroy Desvernay wrote:


Frank Bonnet a écrit :


Hello

Anyons has tested this configuration with success ?

I'll test it in few days and I am wondering if I am alone :-)


Not ZFS, but various combinations of dovecot 1.1.15+FreeBSD(7.1  
and

7.2)+(NFS and UFS). No problem for us® ;)




Yes I too , just curious about ZFS


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--
Dave McGuire
Port Charlotte, FL

Re: [Dovecot] Dovecot + FreeBSD-7.2 + ZFS ?

2009-06-08 Thread Dillon Kass 
Since 7.2 the only "tuning" I have been doing is raising my kmem size so 
I can have a larg arc_max.


I've been using 2gb arc_max with 2.8G kmem size. I haven't done any 
detailed tests but ZFS loves it's arc.


You should read this http://www.cuddletech.com/blog/pivot/entry.php?id=979

Check this out too, it's for FreeBSD http://loveturtle.net/arc_summary.sh

It's a 100% rip off and seems to work just as well.

ZFS v13 supports l2arc cache devices now too, so you can buy some really 
fast ssd and stick it in your pool for l2arc cache. works very well.

Re: [Dovecot] Dovecot + FreeBSD-7.2 + ZFS ?

2009-06-08 Thread Johan Hendriks 

Proskurin Kirill schreef:

Johan Hendriks wrote:

Proskurin Kirill schreef:

Hello all.


We run it in an test case also, with no problems till now.
We have about 200 mailboxes, not much i know.
We have mailboxes with more than 5 messages, and it all works 
well.

No problems after the normal kernel Tuning.


Could you say what tuning do you use and why?


You can find more info here.
http://wiki.freebsd.org/ZFSTuningGuide

Sorry for the lame answer, but i am really busy right now.
And no, not with keeping up the dovecot machine with FreeBSD and ZFS ;-)


Nope it is good answer, really. I don`t see this page early.



Make sure you use the 64 bit version off FreeBSD, it saves a lot of trouble.
You need less tuning because off the greater memory maps available.(see 
the last paragraph of that page)


regards,
--
___
*Johan Hendriks*
*Schavemaker Transport*

Tel: +31 (0)251 229098
Fax: +31 (0)251 212016
email: j.hendr...@schavemaker.com 
web: http://www.schavemaker.com
___

Re: [Dovecot] Dovecot + FreeBSD-7.2 + ZFS ?

2009-06-08 Thread Proskurin Kirill 

Johan Hendriks wrote:

Proskurin Kirill schreef:

Hello all.


We run it in an test case also, with no problems till now.
We have about 200 mailboxes, not much i know.
We have mailboxes with more than 5 messages, and it all works well.
No problems after the normal kernel Tuning.


Could you say what tuning do you use and why?


You can find more info here.
http://wiki.freebsd.org/ZFSTuningGuide

Sorry for the lame answer, but i am really busy right now.
And no, not with keeping up the dovecot machine with FreeBSD and ZFS ;-)


Nope it is good answer, really. I don`t see this page early.


--
Best regards,
Proskurin Kirill

Re: [Dovecot] Dovecot + FreeBSD-7.2 + ZFS ?

2009-06-08 Thread Johan Hendriks 

Proskurin Kirill schreef:

Hello all.


We run it in an test case also, with no problems till now.
We have about 200 mailboxes, not much i know.
We have mailboxes with more than 5 messages, and it all works well.
No problems after the normal kernel Tuning.


Could you say what tuning do you use and why?


You can find more info here.
http://wiki.freebsd.org/ZFSTuningGuide

Sorry for the lame answer, but i am really busy right now.
And no, not with keeping up the dovecot machine with FreeBSD and ZFS ;-)

regards,
--
___
*Johan Hendriks*
*Schavemaker Transport*

Tel: +31 (0)251 229098
Fax: +31 (0)251 212016
email: j.hendr...@schavemaker.com 
web: http://www.schavemaker.com
___

Re: [Dovecot] Dovecot + FreeBSD-7.2 + ZFS ?

2009-06-08 Thread Proskurin Kirill 

Hello all.


We run it in an test case also, with no problems till now.
We have about 200 mailboxes, not much i know.
We have mailboxes with more than 5 messages, and it all works well.
No problems after the normal kernel Tuning.


Could you say what tuning do you use and why?

--
Best regards,
Proskruin Kirill

Re: [Dovecot] Dovecot + FreeBSD-7.2 + ZFS ?

2009-06-08 Thread Johan Hendriks 

Frank Bonnet schreef:

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Hello

Thanks for the feedback ! I'll plan to run it at 7.2
and of course certainly not on a production server
without numerous tests !


Dino Ming wrote:
  

Just to let you guys know, I have nightmare with FreeBSD 7.0-RELEASE + ZFS.
It brought to me an unrecoverable filesystem error.
It is a good technology. But I would wait for it to be more mature before 
production.


I would highly suggest to run a stress test if you really bring it to production 
state.


Dino.

Frank Bonnet wrote:
Geoffroy Desvernay wrote:
  


Frank Bonnet a écrit :

  

Hello

Anyons has tested this configuration with success ?

I'll test it in few days and I am wondering if I am alone :-)

  


Not ZFS, but various combinations of dovecot 1.1.15+FreeBSD(7.1 and
7.2)+(NFS and UFS). No problem for us® ;)


  

Yes I too , just curious about ZFS



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We run it in an test case also, with no problems till now.
We have about 200 mailboxes, not much i know.
We have mailboxes with more than 5 messages, and it all works well.
No problems after the normal kernel Tuning.
I have updated to 7-stable now so i can use ZFS version 13, it all went 
smooth.
If you goning to try ZFS i would suggest to go for Stable to get the 
latest ZFS version.


regards,
--
___
*Johan Hendriks*
*Schavemaker Transport*

Tel: +31 (0)251 229098
Fax: +31 (0)251 212016
email: j.hendr...@schavemaker.com 
web: http://www.schavemaker.com
___

Re: [Dovecot] Dovecot + FreeBSD-7.2 + ZFS ?

2009-06-08 Thread Frank Bonnet 
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Hello

Thanks for the feedback ! I'll plan to run it at 7.2
and of course certainly not on a production server
without numerous tests !


Dino Ming wrote:
> Just to let you guys know, I have nightmare with FreeBSD 7.0-RELEASE + ZFS.
> It brought to me an unrecoverable filesystem error.
> It is a good technology. But I would wait for it to be more mature before 
> production.
> 
> I would highly suggest to run a stress test if you really bring it to 
> production 
> state.
> 
> Dino.
> 
> Frank Bonnet wrote:
> Geoffroy Desvernay wrote:
>   
 Frank Bonnet a écrit :
 
> Hello
>
> Anyons has tested this configuration with success ?
>
> I'll test it in few days and I am wondering if I am alone :-)
>
>   
 Not ZFS, but various combinations of dovecot 1.1.15+FreeBSD(7.1 and
 7.2)+(NFS and UFS). No problem for us® ;)

 
> 
> Yes I too , just curious about ZFS
> 
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Re: [Dovecot] Dovecot + FreeBSD-7.2 + ZFS ?

2009-06-08 Thread Frank Bonnet 
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Geoffroy Desvernay wrote:
> Frank Bonnet a écrit :
>> Hello
>>
>> Anyons has tested this configuration with success ?
>>
>> I'll test it in few days and I am wondering if I am alone :-)
>>
> Not ZFS, but various combinations of dovecot 1.1.15+FreeBSD(7.1 and
> 7.2)+(NFS and UFS). No problem for us® ;)
> 

Yes I too , just curious about ZFS

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Re: [Dovecot] Dovecot + FreeBSD-7.2 + ZFS ?

2009-06-07 Thread Dillon Kass 
We use this at work on a fairly busy server with about 1300 email 
accounts. I also use this configuration for my personal server.


It works great, I don't know if you've been using ZFS on 7.0 or 7.1 but 
with 7.2 a lot of nasty things are fixed and it is very stable. On 
earlier versions of FreeBSD with ZFS you needed mmap_disable = yes in 
your dovecot.conf or the index files would get corrupted but that has 
long since been fixed.


I don't know how comfortable you are with FreeBSD but if the answer is 
very you should seriously look in to either checking out RELENG_7 
(optimal) or grabbing this source 
http://svn.freebsd.org/base/user/kmacy/releng_7_2_zfs/ (use 
subversion-freebsd port, keep in mind you wont be able to update your 
source with csup to patch 7.2 because you will end up with an older 
zpool version, you'll need to apply future patches to 7.2 manually).


The ladder is 7.2-RELEASE with the special ZFS v13 code that was 
recently committed. I can tell you with confidence this runs much better 
than the ZFS v6 stuff in the stock 7.2-RELEASE. We have moved almost 
everything over to it and it is absolutely beautiful. You also get all 
the newer zfs dataset features in the v13 stuff (like being able to 
assign l2 arc cache devices, say a really fast ssd to cache maildirs).


Cheers,
Dillon

On 6/7/09 12:03 PM, Geoffroy Desvernay wrote:

Frank Bonnet a écrit :
   

Hello

Anyons has tested this configuration with success ?

I'll test it in few days and I am wondering if I am alone :-)

 

Not ZFS, but various combinations of dovecot 1.1.15+FreeBSD(7.1 and
7.2)+(NFS and UFS). No problem for us® ;)

Re: [Dovecot] Dovecot + FreeBSD-7.2 + ZFS ?

2009-06-07 Thread Geoffroy Desvernay 
Frank Bonnet a écrit :
> Hello
> 
> Anyons has tested this configuration with success ?
> 
> I'll test it in few days and I am wondering if I am alone :-)
> 
Not ZFS, but various combinations of dovecot 1.1.15+FreeBSD(7.1 and
7.2)+(NFS and UFS). No problem for us® ;)

-- 
Geoffroy Desvernay



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