Which capability refers to the storage of VM data on the node where the VM is running and ensures that the read I/O does not have to traverse the network?
correct answer is C.
Data Locality
Being a converged (compute+storage) platform, I/O and data locality are critical to cluster and VM performance with Nutanix. As explained above in the I/O path, all read/write IOs are served by the local Controller VM (CVM) which is on each hypervisor adjacent to normal VMs. A VM’s data is served locally from the CVM and sits on local disks under the CVM’s control. When a VM is moved from one hypervisor node to another (or during a HA event), the newly migrated VM’s data will be served by the now local CVM. When reading old data (stored on the now remote node/CVM), the I/O will be forwarded by the local CVM to the remote CVM. All write I/Os will occur locally right away. AOS will detect the I/Os are occurring from a different node and will migrate the data locally in the background, allowing for all read I/Os to now be served locally. The data will only be migrated on a read as to not flood the network.
Answer is correct:
https://www.nutanixbible.com/4c-book-of-aos-storage.html#data-locality
and
https://portal.nutanix.com/page/documents/solutions/details?targetId=TN-2001-Nutanix-NX1120S-for-ROBO-Edge:data-locality.html
upvoted 4 times
...
Log in to ExamTopics
Sign in:
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.
Upvoting a comment with a selected answer will also increase the vote count towards that answer by one.
So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.
panotwong
3 months, 1 week agoHotwired34
1 year, 4 months ago