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<DIV dir=ltr align=left><SPAN class=468110202-15062006><TT class=backtick><FONT
face=Arial color=#0000ff size=2><SPAN lang=EN-NZ><FONT size=3><FONT
color=#000000><FONT face="Times New Roman">
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-NZ
style="COLOR: black">Hi,<?xml:namespace prefix = o ns =
"urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-NZ
style="COLOR: blue"><o:p> </o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-NZ
style="COLOR: black">We're currently running a similar setup to what you
describe:<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-NZ
style="COLOR: black">-<SPAN style="mso-spacerun: yes">
</SPAN>Dovecot-1.0.alpha4<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-NZ
style="COLOR: black">-<SPAN style="mso-spacerun: yes">
</SPAN>Maildir<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-NZ
style="COLOR: black">-<SPAN style="mso-spacerun: yes"> </SPAN>Netapp/NFS
exported mailstore (also home to the dovecot indices)<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-NZ
style="COLOR: black">-<SPAN style="mso-spacerun: yes">
</SPAN>mmap_disable=yes<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-NZ
style="COLOR: black">-<SPAN style="mso-spacerun: yes">
</SPAN>lock_method=fnctl<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-NZ
style="COLOR: black">-<SPAN style="mso-spacerun: yes"> </SPAN>default
actimeo (which correspond to the higher end of what
you've observed)<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-NZ
style="COLOR: blue"><o:p> </o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-NZ
style="COLOR: black">Indices seem happy enough being served up from NFS.<SPAN
style="mso-spacerun: yes"> </SPAN>That is, there's been no observable
side-effects.<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-NZ
style="COLOR: blue"><o:p> </o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-NZ
style="COLOR: black">I would be very interested in hearing how you get on with
multiple dovecot instances accessing the underlying mailstore/index files as
this is a direction in which we're considering.<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-NZ
style="COLOR: blue"><o:p> </o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-NZ
style="COLOR: black">Regards,<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-NZ
style="COLOR: black">John.</SPAN><SPAN
style="COLOR: blue; mso-ansi-language: EN-US"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-NZ><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"></FONT></FONT></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt"></FONT></TT></SPAN> </P></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> dovecot-bounces@dovecot.org
[mailto:dovecot-bounces@dovecot.org] <B>On Behalf Of </B>bofh
list<BR><B>Sent:</B> Wednesday, 14 June 2006 3:26 a.m.<BR><B>To:</B>
dovecot@dovecot.org<BR><B>Subject:</B> [Dovecot] nfs, dovecot, and
maildirs<BR></FONT><BR></DIV>
<DIV></DIV>Hello - I know I am not the only one that will be trying, or has
tried this before. Here are my questions!<BR><BR>NFS Clients, multiple
servers running dovecot - linux with 2.6 kernel with relevant patches (utime,
etc)<BR>Backend - netapp filer<BR>End users - various clients all running
IMAP<BR><BR>It looks like 1.0.beta8 is definately the way to go. I have a
few questions with regards to setup.<BR><BR>Is it now possible to reliably store
index files over nfs?<BR><BR>If not, the alternative is keeping index files in
memory, or on local disk - on each server. How big of a performance hit is
this if imap connections are round-robined between imap servers?<BR><BR>I've
seen various people using different <TT class=backtick>actimeo settings, some
set at 0, some slightly higher - as much as 30. Can anyone speak on
experience they have had with netapps on this subject?</TT><BR><BR>The following
sound like they are required:<BR><BR><TT
class=backtick>mmap_disable=yes<BR></TT><TT
class=backtick>lock_method=dotlock<BR><BR>Has anyone been successful with
fnctl() on netapps with dovecot?<BR><BR>Thanks in
advance!<BR></TT></BODY></HTML>