Your company has an enterprise application running on Compute Engine that requires high availability and high performance. The application has been deployed on two instances in two zones in the same region in active-passive mode. The application writes data to a persistent disk. In the case of a single zone outage, that data should be immediately made available to the other instance in the other zone. You want to maximize performance while minimizing downtime and data loss.
What should you do?
To achieve both high availability and performance while minimizing downtime and data loss in the case of a single zone outage, you should use a regional SSD persistent disk. A regional SSD persistent disk provides synchronous replication of data between two zones in a region, ensuring that data is immediately available to the other instance in case of a zone outage. You can then force-attach the disk to the other instance, maintaining high performance and minimizing recovery time.
Answer C https://cloud.google.com/compute/docs/disks/repd-failover
C is right answer. C. 1. Attach a regional SSD persistent disk to the first instance. 2. In case of a zone outage, force-attach the disk to the other instance. gcs-fuse is slower than of regional SSD PD. **** Admin: You need to correct lots of questions. Some of the marked answers are nonsense, these must be revisited based on experts comments.
Admins please take some time and redo the answers, put them to match at least the most voted ones, would help a lot.
Regional persistent disk is a storage option that provides synchronous replication of data between two zones in a region. Regional persistent disks can be a good building block to use when you implement HA services in Compute Engine.
C In the event that the primary zone fails, you can fail over your regional Persistent Disk volume to a VM in another zone by using a force-attach operation. When there's a failure in the primary zone, you might not be able to detach the disk from the VM because the VM can't be reached to perform the detach operation. Force-attach operation lets you attach a regional Persistent Disk volume to a VM even if that volume is attached to another VM
Inline with the current architecture itself "The application writes data to a persistent disk."
You want to maximize performance while minimizing downtime and data loss
C is the right answer
C is ok
Answer is C
C is the correct answer, https://cloud.google.com/compute/docs/disks/repd-failover#zonal_failures
https://cloud.google.com/compute/docs/disks/repd-failover Seems C is correct
Ans: C, please check - https://cloud.google.com/compute/docs/disks/high-availability-regional-persistent-disk
I don't get why B has been given as answer... GCS-FUSE brings in additional complexity and it also doesn't serve the same purpose as effectively as regional SSD does.
Agree with Regional SSD persistent
C makes a better sense than any other option
BigQuery cannot use customer supplied KMs keys only customer managed keys. The other options add too much complexity to the problem.
Somehow I commented on the wrong answer please delete.