That's the disk heartbeat. 1 block write and X blocks read every 2 secs.
X is the number of nodes defined in the cluster and a block is 512 bytes.
AJ Weber wrote:
I just configured-up my first, two-node OCFS2 cluster with one
mount-point (sdb1). (I know, hooray for you, newbie.)
I'm just noticing that there is almost-constant activity on sdb, even
when neither node is actually doing anything (obvious) with the
mount-point. The OCFS2 cluster is started and running on both nodes,
but there are no procs or users using the fs, yet there's so much
"overhead"?
Is this common and to be expected? Are there any "tuning parameters"
(other than number of nodes) that I should be aware of? I'm just
surprised at how much disk activity is happening with nothing using
the disks, and am almost afraid of what happens when we get a
disk-intensive app using it from multiple nodes.
NOTE: This is not intended for a RAC install at this time. Versions:
CentOS 4.5, OCFS2-1.2.5.
Thanks in advance for any advice/pointers/tips.
-AJ
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