An architect is designing a vSphere environment for a customer and learns that the customer has:
✑ A single vSphere cluster
✑ Two storage arrays with different RAID capabilities
Which two design decisions should the architect make to maximize data availability and data performance for this customer? (Choose two.)
To maximize data availability and performance in a vSphere environment with a single cluster and two storage arrays with different RAID capabilities, using Storage DRS would help in balancing the workload across the datastores and improve performance by avoiding overloading some datastores while others are underutilized. Additionally, employing VMDK anti-affinity rules ensures that certain virtual machine disks are kept on different storage arrays, thus leveraging the different RAID capabilities to optimize performance and provide better data protection by not placing all data on a single storage array.
A. Use Storage DRS. B. Use VMDK anti-affinity rules. Storage DRS would satisfy data availability. VMDK anti-affinity rules would satisfy "different RAID capabilities" and "data performance.
Correct answer: A,B
I think is A and E. We all agree on A, But i think in E because of this: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.resmgmt.doc/GUID-FF28F29C-8B67-4EFF-A2EF-63B3537E6934.html#:~:text=An%20affinity%20rule%20specifies%20that,a%20specific%20host%20DRS%20group. Used to specify affinity or anti-affinity between individual virtual machines. A rule specifying affinity causes DRS to try to keep the specified virtual machines together on the same host, for example, for performance reasons. With an anti-affinity rule, DRS tries to keep the specified virtual machines apart, for example, so that when a problem occurs with one host, you do not lose both virtual machines.
Always talk about data perfomanece, you are right, is A and B
A : Storage DRS is the first thing to set to maximize data availability/performance B : This one is tricky, but I chose it after eliminating the other options. We have 2 storage arrays with different RAID capabilities : that means the stored data may not be protected the same way and with the same performances. We have to assume they are equivalent. C : datastore heartbeats are used by vSphere HA, to detect hosts isolation. It won’t help to maximize data availability/performance D : it could help, but will need investments
I agree with answer: A,B
Agree with nemisis95 for the same reasons
what about using 3 storage arrays, why no one is taking this into consideration ?
A&B ..The Datastore Hearbeating enables to avoid false restarting of VMs in case only a management network has failed
A. Use Storage DRS This to be used for each DS created on each array for: anti-affinity rules and balancing capacity and performance C. Use multiple datastores for heartbeat. This to ensure availability of storage across both arrays. Select DS from each array for heartbeat.
Correct answer: A,B
I don’t see any possible solution to this question. A is not as storage arrays are different raid as per https://kb.vmware.com/s/article/2149938 What are some of the major best practices while configuring a Storage DRS cluster? Group disk with similar characteristics (RAID-1 with RAID-1, replicated with replicated, 15k RPM with 15k RPM) i.e. Identical storage profiles.
One datastore LUN can have multiple disks. Group disks means disks in the same datastore. It's not suggesting to keep disks from different datastore at the same RAID level.