We have a cluster with five nodes, three in AWS us-east-1 and two in us-west-1. Our cluster was restarted on 9/30 and since then, both of the secondary nodes in us-west-1 have been relentlessly hammering us with High I/O% on data partition alerts. Looking at monitoring, our other secondary nodes, in us-east-1, are humming along without issue, but the us-west-1 nodes are constantly at or above 90% util.
What can we do to address this? I thought of removing the us-west-1 nodes and re-adding them, but wanted to ask here before I take that step. Thanks in advance.