Hi All Does anyone have any experience on running qmail on solaris 10 with ZFS only? I would appreciate if you share your findings, suggestion and gotchas Thanks -- Asif Iqbal PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing?
Hello Asif,
Tuesday, February 17, 2009, 7:43:41 PM, you wrote:
AI> Hi All
AI> Does anyone have any experience on running qmail on solaris 10 with ZFS
only?
AI> I would appreciate if you share your findings, suggestion and gotchas
It just works.
--
Best regards,
Robert Milkowski
http://milek.blogspot.com
On Tue, Feb 17, 2009 at 5:52 PM, Robert Milkowski <milek at task.gda.pl> wrote:> Hello Asif, > > Tuesday, February 17, 2009, 7:43:41 PM, you wrote: > > AI> Hi All > > AI> Does anyone have any experience on running qmail on solaris 10 with ZFS only? > > AI> I would appreciate if you share your findings, suggestion and gotchas > > It just works.Is there any performance penalty over ufs ?> > -- > Best regards, > Robert Milkowski > http://milek.blogspot.com > >-- Asif Iqbal PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing?
On 17-Feb-09, at 8:28 PM, Asif Iqbal wrote:> On Tue, Feb 17, 2009 at 5:52 PM, Robert Milkowski > <milek at task.gda.pl> wrote: >> Hello Asif, >> >> Tuesday, February 17, 2009, 7:43:41 PM, you wrote: >> >> AI> Hi All >> >> AI> Does anyone have any experience on running qmail on solaris 10 >> with ZFS only? >> >> AI> I would appreciate if you share your findings, suggestion and >> gotchas >> >> It just works. > > Is there any performance penalty over ufs ?Do you have high performance requirements? If so, you need to test against your own workload on your own systems. --Toby> >> >> -- >> Best regards, >> Robert Milkowski >> http://milek.blogspot.com >> >> > > > > -- > Asif Iqbal > PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu > A: Because it messes up the order in which people normally read text. > Q: Why is top-posting such a bad thing? > _______________________________________________ > zfs-discuss mailing list > zfs-discuss at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Hello Asif, Wednesday, February 18, 2009, 1:28:09 AM, you wrote: AI> On Tue, Feb 17, 2009 at 5:52 PM, Robert Milkowski <milek at task.gda.pl> wrote:>> Hello Asif, >> >> Tuesday, February 17, 2009, 7:43:41 PM, you wrote: >> >> AI> Hi All >> >> AI> Does anyone have any experience on running qmail on solaris 10 with ZFS only? >> >> AI> I would appreciate if you share your findings, suggestion and gotchas >> >> It just works.AI> Is there any performance penalty over ufs ? I did some testing years ago and I honestly do not remember - nevertheless we migrated to ZFS so either it wasn''t slower or it was faster. -- Best regards, Robert Milkowski http://milek.blogspot.com
Robert Milkowski wrote:> Hello Asif, > > Wednesday, February 18, 2009, 1:28:09 AM, you wrote: > > AI> On Tue, Feb 17, 2009 at 5:52 PM, Robert Milkowski <milek at task.gda.pl> wrote: > >>> Hello Asif, >>> >>> Tuesday, February 17, 2009, 7:43:41 PM, you wrote: >>> >>> AI> Hi All >>> >>> AI> Does anyone have any experience on running qmail on solaris 10 with ZFS only? >>> >>> AI> I would appreciate if you share your findings, suggestion and gotchas >>> >>> It just works. >>> > > AI> Is there any performance penalty over ufs ? > > I did some testing years ago and I honestly do not remember - > nevertheless we migrated to ZFS so either it wasn''t slower or it was > faster. > > >I run exim (which is a pretty similar sort of MTA) on 2-3 year old x4200''s with ZFS mirrored on local SAS drives. These perform better than they did with UFS due to the L2ARC. I have two of these. Each one manages to process around 300-500K inbound messages per day quite easily with Spamassassin running on them as well. Spec is dual dual core Opteron with 4 GB RAM. 4 x 73 GB 10K 2.5 SAS disks. As I think Tony mentioned, the best thing to do is to test with your specific workload. I don''t think you will see a drop in performance at all. (and you will gain so many other lovely things that ZFS brings ;))