The ultimate story about OCR, OCRMIRROR and 2 storage boxes – Chapter 2

Sep 19, 2009

Scenario 2: loss of ocrmirror, both nodes down

(This is the follow-up of chapter 1)

Let’s investigate the vote count a little further by doing the following test:

  • First stop crs on both nodes
  • Then make the lun with ocrmirror unavailable to both nodes

What happens?
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The ultimate story about OCR, OCRMIRROR and 2 storage boxes – Chapter 1

Sep 1, 2009

Scenario 1: loss of ocrmirror, both nodes up

(This is the followup of article “Introduction“)

Facts
  • CRS is running on all nodes
  • The storage box containing the OCRmirror is made unavailable to both hosts (simulating a crash of one storage box).

What happens?
Read the rest of this entry »