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SubjectRe: Problem with 2.6 kernel and lots of I/O
Date
On May 31, 2005, at 15:00:46, Roy Keene wrote:
> I had not heard of "DRBD" before now, but it looks interesting.
> I am looking into it further.

For DRBD, I recommend first installing DRBD, then setting up and
installing Heartbeat. On Debian the process is something like
the following:

# apt-get install kernel-package kernel-source-${VERSION} drbd0.7-
module-source drbd0.7-utils heartbeat
# cd /usr/src
# tar -xjf kernel-source-${VERSION}.tar.bz2
# cd kernel-source-${VERSION}
# cp /boot/config-${VERSION}-whatever ./.config
# make-kpkg --revision ${REVISION} --append-to-version -$
{MOREVERSION} --added-modules drbd --config oldconfig --us --uc
configure modules_image
# dpkg -i /usr/src/drbd0.7-module-${VERSION}-${MOREVERSION}_$
{DRBD_VERSION}+${REVISION}_${ARCH}.deb

Then read the heartbeat docs to make yourself a /etc/ha.d/haresources
file. Mine looks like this:
# Address monarch.csl.tjhsst.edu, Kerberos master, LDAP master
king IPaddr::198.38.19.1 Kerberos::TJHSST.EDU::CSL.TJHSST.EDU

# webkdc.tjhsst.edu
king IPaddr::198.38.19.2

# weblogin.tjhsst.edu
king IPaddr::198.38.19.3

# cups.csl.tjhsst.edu
king IPaddr::198.38.19.8

# mirror.tjhsst.edu
king IPaddr::198.38.19.9

# AFS volumes
king drbddisk::afs0 AFSMount::/vicepa
emperor drbddisk::afs1 AFSMount::/vicepb

NOTE: AFSMount is a custom heartbeat script, and I use a slightly
modified drbddisk script as well.


Cheers,
Kyle Moffett

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