RE: Has anyone used qmail with xfs on Linux 2.4?
try using the 2.4.1 kernel, which has built-in reiserfs support (a good journaling system) and adapt the small changes to qmail in order to work reliable under reiserfs, see http://www.jedi.claranet.fr/qmail-reiserfs-howto.html Franky -Original Message- From: Sid Wilroy [mailto:[EMAIL PROTECTED]] Sent: dinsdag 13 februari 2001 20:57 To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Has anyone used qmail with xfs on Linux 2.4? We seem to have a bottleneck reading our /var/qmail/queue, so we were looking at alternatives like: 1) Create a large ram disk and have the queue mounted there ( can't seem to create a ram disk any larger than 4M) Any ideas on using a ram disk for the queue? Has anyone been successful in creating a ram disk larger than 4M? How? 2) XFS from SGI, recompiled a new kernel from SGI. It seems the device files are totally different. Anyone used xfs on linux for qmail? How much better performance? The new kernel booted fine but couldn't mount the filesystems ext2 saying bad master boot record.
Re: Has anyone used qmail with xfs on Linux 2.4?
On Wed, Feb 14, 2001 at 11:28:15AM +0100, Van Liedekerke Franky wrote: try using the 2.4.1 kernel, which has built-in reiserfs support (a good journaling system) and adapt the small changes to qmail in order to work reliable under reiserfs, see http://www.jedi.claranet.fr/qmail-reiserfs-howto.html There is a post referenced on lwn.net about stability problems with reiserfs, URL:http://www.lwn.net/2001/0208/kernel.php3. You may want to have a look at those, and wait for the fixes before using reiserfs in production. - Mikael - PGP signature
Has anyone used qmail with xfs on Linux 2.4?
We seem to have a bottleneck reading our /var/qmail/queue, so we were looking at alternatives like: 1) Create a large ram disk and have the queue mounted there ( can't seem to create a ram disk any larger than 4M) Any ideas on using a ram disk for the queue? Has anyone been successful in creating a ram disk larger than 4M? How? 2) XFS from SGI, recompiled a new kernel from SGI. It seems the device files are totally different. Anyone used xfs on linux for qmail? How much better performance? The new kernel booted fine but couldn't mount the filesystems ext2 saying bad master boot record. begin:vcard n:Wilroy;Sid tel;pager:[EMAIL PROTECTED] tel;fax:408-732-8100 tel;work:408-732-8800 x232 x-mozilla-html:FALSE adr:;; version:2.1 email;internet:[EMAIL PROTECTED] fn:Sid Wilroy end:vcard
Re: Has anyone used qmail with xfs on Linux 2.4?
On Tue, Feb 13, 2001 at 01:56:38PM -0600, Sid Wilroy wrote: We seem to have a bottleneck reading our /var/qmail/queue, so we were looking at alternatives like: 1) Create a large ram disk and have the queue mounted there ( can't seem to create a ram disk any larger than 4M) Any ideas on using a ram disk for the queue? Has anyone been successful in creating a ram disk larger than 4M? How? Note that you can easily lose mail if you use a ramdisk for queueing. Greetz, Peter.
Re: Has anyone used qmail with xfs on Linux 2.4?
Sid Wilroy [EMAIL PROTECTED] wrote: We seem to have a bottleneck reading our /var/qmail/queue, so we were looking at alternatives like: 1) Create a large ram disk and have the queue mounted there ( can't seem to create a ram disk any larger than 4M) Any ideas on using a ram disk for the queue? Has anyone been successful in creating a ram disk larger than 4M? How? Not sure about a straight ramdisk, but there are apparently a few places out there with the mail queue on a solid state disk. That would buy you about the same performance. 2) XFS from SGI, recompiled a new kernel from SGI. It seems the device files are totally different. Anyone used xfs on linux for qmail? How much better performance? The new kernel booted fine but couldn't mount the filesystems ext2 saying bad master boot record. XFS is still fairly beta; I wouldn't want to place bets about whether it makes the guarantees that qmail needs to ensure no mail is lost. If you're out of queue bandwidth, have you checked the following first? -/var/qmail/queue is on its own disk -queue is on a 10kRPM/15kRPM SCSI disk -/var/log is on a separate disk from /var/qmail/queue There's a section at www.qmail.org on large servers. It contains lots of useful information on this topic. Charles -- --- Charles Cazabon[EMAIL PROTECTED] GPL'ed software available at: http://www.qcc.sk.ca/~charlesc/software/ Any opinions expressed are just that -- my opinions. ---
