> Date: Thu, 9 Mar 2006 11:52:56 +0000 (WET) > From: Hugh Sasse <[EMAIL PROTECTED]> > To: Subscribers of Qpopper <[email protected]> > X-DMU-MailScanner-Information: Please contact the ISP for more information > X-DMU-MailScanner: Found to be clean > Subject: Large spool mboxes => slow? > > We have several people who POP their mail fairly frequently, but > they leave mail on the server. These large files seem to be the > main thing impacting the performance of the mail server. Qpopper > has no quota options as such, and some of the policy controls are > dependent on being sure how the client interacts with the serveer, > and I am not familiar with all the clients people use. > The OS (Solaris9) has quotas for disks, but with this being for mail > I'm presently unsure as to how that will impact on users. > So, I have reached the conclusion that the best thing I can do to > improve performance is to use the --enable-temp-drop-dir and point > it to a different partition from /var/spool/mail so that disk seeks > on both partitions may occur in parallel. Does this sound like a
Point to different spindles on different I/O channels. You have c0t0d0s6. Use c1t0d0s6 for the temp-drop-dir. At a minimum, point to different spindles. any POP3 daemon is going to have problem is the spool gets too large. Also enable server mode. enable caching of temp dir > useful thing to do? What if they are on different slices of the same > disk -- would that make things worse (further for the heads to seek)? This WILL make things worse for just the reason you've stated. > Filesystem kbytes used avail capacity Mounted on > /dev/dsk/c0t0d0s7 10525500 9733158 687087 94% /export/home > /dev/dsk/c0t0d0s3 4030014 373130 3616584 10% /var > > Is there anything else I can do to qpopper that will help? > > Getting users to change their behaviour is another story altogether, > of course :-) > > Hugh > > --------------------------------------------------------------------- Gregory Hicks | Principal Systems Engineer Cadence Design Systems | Direct: 408.576.3609 555 River Oaks Pkwy M/S 6B1 | Fax: 408.894.3479 San Jose, CA 95134 | Internet: [EMAIL PROTECTED] I am perfectly capable of learning from my mistakes. I will surely learn a great deal today. "A democracy is a sheep and two wolves deciding on what to have for lunch. Freedom is a well armed sheep contesting the results of the decision." - Benjamin Franklin "The best we can hope for concerning the people at large is that they be properly armed." --Alexander Hamilton
