Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

When to take a snapshot of Vcenter VM

Posted on 2014-02-02
9
Medium Priority
?
4,095 Views
Last Modified: 2014-02-17
Out Vcenter is a virtual machine, I would like to know in which scenario should I take a snapshot of it:

- when updating windows OS (I believe I should take snapshot)
-when upgrading to a new Build ,example from 5.1.0 to 5.1.2
-when upgrading from 5.1.2 to 5.5

Assuming Upgrade is either uninstalling the old venter version and reinstalling new version.
OR
upgrading to a new version without uninstalling the old version

Thanks
0
Comment
Question by:jskfan
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 4
9 Comments
 
LVL 124

Assisted Solution

by:Andrew Hancock (VMware vExpert / EE MVE^2)
Andrew Hancock (VMware vExpert / EE MVE^2) earned 1500 total points
ID: 39827625
We are not fans of Snapshots, at ALL, so we would say NEVER!

By Taking a Snapshot, you are creating a delta or differencing disk, where all the changes you make to the OS, are created, performance of the VM gets worse running on a snapshot.

then, when you are finished, you Delete the Snapshot, which can take time, to merge the changes, depending on how long, and how large the snapshot is.

The danger is the snapshot does not merge, datastore space runs out of storage, and the merge process, causes poor VM performance.

AND, before you make ANY CHANGES to a VM in Production, it's GOOD Practice, to have a FULL BACKUP, not a Snapshot.

SO, I would recommend you Take and have FULL BACKUPS of ANY VM, before you make any changes to the VM.

HOW TO: VMware Snapshots :- Be Patient

You can also use the CLONE operation (as a backup!)
0
 

Author Comment

by:jskfan
ID: 39828192
If I understand , snapshots will be good just when you do Guest OS updates, not Vmware related updates?
for instance if I need to update Virtual Machine virtual hardware or VM Tools, or upgrade Vcenter build, or uninstall /reinstall Vcenter Application, the snapshot will not be helpful in this case.?
0
 
LVL 124

Assisted Solution

by:Andrew Hancock (VMware vExpert / EE MVE^2)
Andrew Hancock (VMware vExpert / EE MVE^2) earned 1500 total points
ID: 39828214
We are not fans of Snapshots, at ALL, so we would say NEVER!

Take a FULL Backup of the VM before any change.

You CANNOT role Backup some VMs.

e.g. Exchange Mail servers, SQL Servers, Active  Directory Domain Controllers.

Do not use Snapshots, you will regret it!
0
NEW Veeam Agent for Microsoft Windows

Backup and recover physical and cloud-based servers and workstations, as well as endpoint devices that belong to remote users. Avoid downtime and data loss quickly and easily for Windows-based physical or public cloud-based workloads!

 

Author Comment

by:jskfan
ID: 39828546
I am not Fan of snapshots either,,
however I do not know the purpose of Vmware having Snapshot Manager there…
in which case it is recommended to use Snapshot Manager to take a snapshot?
0
 
LVL 124

Assisted Solution

by:Andrew Hancock (VMware vExpert / EE MVE^2)
Andrew Hancock (VMware vExpert / EE MVE^2) earned 1500 total points
ID: 39828553
If you want to use the Snapshot feature, go ahead, but you would be well advised to make sure you have FULL Backups before making any changes to Production Machines.

VMware have introduced Snapshots, so Backups can work, and it's a feature from VMware Workstation, more often than not Admins do not know how to use them, and get into difficulty.

and Post questions here on EE.

To use snapshot, select Take Snapshot before you do you changes.
0
 

Author Comment

by:jskfan
ID: 39828618
Andrew..
I am just trying to understand why Vmware came up with snapshots. they got to have a purpose when to use them
0
 
LVL 124
ID: 39828939
You can use them anytime, but the responsibility is on the Administrator, when to use them, and what to use them for.

This is the issue Administrators, do not understand, the issues, they can cause, which I have listed.

e.g. if you patch a Domain Controller, and it goes wrong, would you Revert a Snapshot? (e.g. rollback all the changes in the Domain Controller, e.g. go back it time?)
0
 
LVL 20

Accepted Solution

by:
compdigit44 earned 500 total points
ID: 39831051
One side note,  like Hancock has mention snapshots are good but with anything in life must be used with moderation. Here is vmware best practices guides for snapshots..

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1025279


Also when upgrading vcenter the upgrade makes schema updates which affects your DB as well.
0
 

Author Closing Comment

by:jskfan
ID: 39865757
Thank you
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this step by step tutorial with screenshots, we will show you HOW TO: Enable SSH Remote Access on a VMware vSphere Hypervisor 6.5 (ESXi 6.5). This is important if you need to enable SSH remote access for additional troubleshooting of the ESXi hos…
Giving access to ESXi shell console is always an issue for IT departments to other Teams, or Projects. We need to find a way so that teams can use ESXTOP for their POCs, or tests without giving them the access to ESXi host shell console with a root …
Teach the user how to use configure the vCenter Server storage filters Open vSphere Web Client:  Navigate to vCenter Server Advanced Settings: Add the four vCenter Server storage filters: Review the advanced settings: Modify the values of the four v…
This Micro Tutorial steps you through the configuration steps to configure your ESXi host Management Network settings and test the management network, ensure the host is recognized by the DNS Server, configure a new password, and the troubleshooting…

636 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question