What are the common issues VMware vSphere Administrator faces regularly?

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What are the common issues VMware vSphere Administrator faces regularly?

Are you learning about vSphere and want to know what problems VMware vSphere Administrators often deal with? Well, as a VMware vSphere Administrator, I’ve faced a few common work and issues that you should know as an admin.

Common Challenges in ESXi and vCenter Administration’s life.

Issues with ESXi:
  • Esxi is disconnected from the vCenter server or you cannot connect to ESXi.
  • PSOD (Purple Screen of Death) occurrences
Challenges with Virtual Machines:
  • Failure to start or stop
  • Performance degradation
  • Corrupted VMX files
  • Boot failure post-OS patching
  • Problems with VM snapshots
  • Errors and failures during vMotion and s-vmotion processes
  • Issues related to independent disks and distributed switch deletions causing vMotion failures
Troubles with vCenter:
  • Inability to establish connections
  • Failures within vCenter services
  • Database-related complications
Storage Problems:
  • Datastore unavailability
  • All paths to data stores are down
  • Resignaturing the datastores
  • Grayed-out VMs
  • Orphaned VMs
  • Datastore inaccessibility
High Availability (HA) Concerns:
  • HA didn’t trigger after a host down
  • HA agent issues during ESXi server upgrades
  • VMs not restarting after host failure
Update Manager Challenges:
  • Remediation failures
  • Issues within the Update Manager database
Additionally, focusing on:
  • Troubleshooting ESXi performance using ESXTOP
  • Imagine if you have deleted the NVRAM or any other file, will the VM boot up?
  • Prerequisites for vCenter and ESXi
  • Database interoperability
  • ESXi/Hardware Upgrade process
  • Interoperability matrix VMware
  • Compatibility Matrix Vmware
  • The backend processes of Snapshot, vMotion, and sVmotion.
  • How FT works in Background.
  • Understanding HA processes including power-on, protected VMs, HB files, Moid checking process, and master election process.
  • Familiarity with NMP, PSP, SATP, MRU, RR, Fixed, ALUA
  • Knowledge of VMkfs tools cmdlets, ESXcli commands, and Vim-cmd commands
  • How to permit Domain Users on vCenter
  • How to access the VAMI portal.
  • ESXi and vCenter Upgrade Prerequisite and Process.

 

I hope you like this article! If you’re getting ready for a VMware interview or want to be a pro at managing VMware systems, these topics are super important. Learning about these things will make your interview easier and help you do well as a VMware administrator. Good luck with your prep!

VMware Mastery

Hi, I've been working with Windows, VMware and Cloud technologies for more than 12 years. I love delving into the exciting realm of technology and enjoy sharing my knowledge with others. I write about IT and Technology, covering both technical and non-technical topics.

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