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oivinde
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What happens to cache on SSD in a major power outage scenario?

In some environments (Oil&Gas), where UPS´s are not allowed, and power can be cut to an entire rig due to fire hazard or drill, how can/will this impact a Virtual SAN environment?

How will Virtual SAN cluster state be?

When cluster spins up again, will cache on SSD´s be written to mechanical drives?

With regards to caching, will there be an immediate acknowledge of write to the VM as soon as data is written to local SSD, or does this ack come when the replicas are written too?

Thanks! 🙂

Best regards

Oivind Ekeberg

Norway

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depping
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Cache on SSD is persistent, and when a whole environment collapses then when it boots up it will recover fine. The ack will be acknowledged to the guest when both hosts have completed the write.

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depping
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Cache on SSD is persistent, and when a whole environment collapses then when it boots up it will recover fine. The ack will be acknowledged to the guest when both hosts have completed the write.