[Pacemaker] iscsi migration to slow (disk errors) tune pacemaker or open-iscsi?

Jelle de Jong jelledejong at powercraft.nl
Thu Feb 24 12:05:27 UTC 2011


Hello everybody,

I started a nice new tread for this,

I seem to got a working drbd/iscsi pacemaker setup that behaves as
expected when nodes go done/up or resources are moved. (only got some
issues with the high verbosity in syslog, but that is unrelated to this
thread)

When resources are migrated on the crm nods, the open-iscsi client side
will get disk errors and the running kvm quest will get in trouble, this
only seems to happen when there is a lot of disk activity on the kvm
quest, (higher loads on all systems)

# summary syslog of problem and pacemaker and iscsi configurations.
http://debian.pastebin.com/FM3P0Qe8

Would somebody give some advice on either optimising my pacemaker
configuration or tune my open-iscsi (timeouts?) some examples or good
documentation URL's would be appreciated.

With kind regards,

Jelle de Jong




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