> Our NoSQL database uses pub-sub for cluster membership, and we found<BR>
> that the hosts with screwed up RAID controllers could easily stay in<BR>
> the cluster even if they were really screwed up. We had to add some extra<BR>
> watchdogs and tests that the system disk is working.<BR>
I've seen that before with a RAID controller when one disk fails.<BR>
System pings, OS and TCP-IP stack are up, but the system disk has been marked write-only.<BR>
I'm still pretty amazed that the Linux OS soldiers on in this state.<BR>
One to watch out for!<BR>
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