Exam 2V0-21.23 topic 1 question 1 discussion

CE seems to be the correct answer. Generally you would want to patch a vSAN cluster a node at a time (sequentially) so you do not inadvertently cause a storage outage in the cluster. Also, if you look in the link below, you cannot remediate a vSAN cluster in parallel mode: Parallel remediation is deactivated by default, but you can enable it during remediation or in the vSphere Lifecycle Manager general remediation settings. You cannot remediate in parallel hosts in a vSAN cluster https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-lifecycle-manager/GUID-26EB282E-AD1E-425A-B4CF-1D70C0DE3C8F.html

https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-lifecycle-manager/GUID-DD04A5FC-752C-405E-9771-69404A5CF105.html

You're not remediating in parallel, you're just staging the software in parallel. This isn't a problem and perfectly reasonable.

DE is correct because it has be cluster wise not host wise

D -> By default, vSphere Lifecycle Manager performs the staging operation onto all hosts in the cluster in parallel. Ref: https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-lifecycle-manager/GUID-DD04A5FC-752C-405E-9771-69404A5CF105.html E -> vSphere Lifecycle Manager remediates hosts that are part of a vSAN cluster sequentially. Ref: https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-lifecycle-manager/GUID-C2BB3DC5-D0E4-44D6-BA43-EB67F005CF8F.html

It definitely CE

A&D because they allow VLM to auto control MM, vSAN will make it sequential - so no worries about parallel. E is wrong because remediate won't remediate all the hosts in sequence. It'll try and do them all at once (of course vSAN will stop that from happening). A is more correct than E, IMO.

vSphere Lifecycle Manager remediates hosts that are part of a vSAN cluster sequentially. By default, vSphere Lifecycle Manager performs the staging operation onto all hosts in the cluster in parallel.

Cannot be answer A : a vSAN cluster cannot remediate all the hosts at the same time, it has to be update 1 by 1. Cannot be answer B : It is useless to place the hosts in maintenance for staging Cannot be answer C : The staging is done in parallel by default So answers D and E : - We let the hosts as-is - We launch the staging, which is performed on all hosts in parallel - Then we launch the Remediate All option : vLCM will put a host in maintenance and update it, and will continue sequencially.

D -> By default, vSphere Lifecycle Manager performs the staging operation onto all hosts in the cluster in parallel. E -> vSphere Lifecycle Manager remediates hosts that are part of a vSAN cluster sequentially.

D -> By default, vSphere Lifecycle Manager performs the staging operation onto all hosts in the cluster in parallel. E -> vSphere Lifecycle Manager remediates hosts that are part of a vSAN cluster sequentially.

Parallel upgrades While vSAN limits the upgrade process to one host at a time within a vSAN cluster, cluster upgrades can be performed concurrently if desired.

Agree with Michael - CE

Option A: Use the Remediate option in vSphere Lifecycle Manager to remediate all of the ESXi hosts in the cluster in parallel. Allow vSphere Lifecycle Manager to automatically control maintenance mode on the ESXi hosts. Option D: Leave all ESXi hosts in the cluster operational. Use the Stage All option in vSphere Lifecycle Manager to stage the required software onto all ESXi hosts in the cluster in parallel. Both of these options allow vSphere Lifecycle Manager to automatically handle maintenance mode and update the hosts, which helps minimize downtime during the remediation process. Option A performs the remediation of hosts in parallel, while Option D stages the software on all hosts in parallel before proceeding with the remediation.

D & E are correct. B and C not correct because Staging occurs in parallel by default. A is not correct because Lifcycle Manager does not manage entry/exit from maintenance mode when parallel mode is chosen.

CE seems to be the correct answer. Generally you would want to patch a vSAN cluster a node at a time (sequentially) so you do not inadvertently cause a storage outage in the cluster. Also, if you look in the link below, you cannot remediate a vSAN cluster in parallel mode:

Agree with Michael