Re: [Dovecot] Dovecot + FreeBSD-7.2 + ZFS ?
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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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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 50000 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.hendriks@schavemaker.com mailto:j.hendriks@schavemaker.com web: http://www.schavemaker.com
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 50000 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
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 50000 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.hendriks@schavemaker.com mailto:j.hendriks@schavemaker.com web: http://www.schavemaker.com
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 50000 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
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 50000 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.hendriks@schavemaker.com mailto:j.hendriks@schavemaker.com web: http://www.schavemaker.com
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.
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.
-DaveOn 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
participants (5)
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Dave McGuire
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Dillon Kass
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Frank Bonnet
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Johan Hendriks
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Proskurin Kirill