From: Markus Mayer (mymaillists@gmx.at)
Date: Tue Feb 26 2008 - 06:02:34 EST
Hi all,
Hoping someone might be able to help here with two problems I have with scdpmd
on a fresh Sun Cluster 3.2 installation on Solaris 10, update 3, with all
patches installed that were available up until 15 February. The systems have
been "JASS'ed".
First problem is that I have noticed that the scdpmd disk path monitor is
eating on a V445 with 4 CPU's typically 22-25% of cpu resources. Essentially
a whole cpu is being used just for disk path monitoring. Right now there are
30 disks assigned to the system from a Hitachi AMS500, four paths to each
disk, multipathing managed by MPxIO.
The second problem is that scdpmd is dumping core quite often, at least every
couple of days. It does get restarted by the cluster infrastructure however
the fact that is dumps bothers me.
Does anyone know if there is any way to reduce the load, particularly as in
the future I will get a lot more disks from storage assigned to the cluster,
which would likely mean that the whole system resources would be eaten just
with disk path monitoring. According to the scdpmd manual, the monitoring
could be shut off, however I have no idea what side effects that might have
on the system or the cluster.
Also, does anyone know anything that might help in resolving the core dumps
that are happening with scdpmd.
Thanks and regards
Markus
_______________________________________________
sunmanagers mailing list
sunmanagers@sunmanagers.org
http://www.sunmanagers.org/mailman/listinfo/sunmanagers
This archive was generated by hypermail 2.1.7 : Wed Apr 09 2008 - 23:42:48 EDT