?
Solved

ESXi 5.1 / 5.5 VM Snapshot Location

Posted on 2014-04-09
7
Medium Priority
?
1,433 Views
Last Modified: 2014-04-11
I would like to get other Experts opinions on this. Do post Admin store their VM snapshot on the default location or store the snapshots on another datastore?

If you do storage the snapshot on another datastore, have you run into any problems with vMotion, backups or overall VM performace?
0
Comment
Question by:compdigit44
[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
  • 3
7 Comments
 
LVL 123
ID: 39990297
We've seen a mix of

1. Some Administrators do not know, you can change the working location!

2. Some VMware Administrators have a special fast LUN (e.g. SSD) for ALL the Snapshots of all the VMs, usually a large 2TB LUN, so as not to run out of space.

3. Some VMware Administrator use small LUNs per VM, and Manage the Snapshot issue accordingly, by setting Alerts in vCenter Server.

If you LUN is slow, datastore is under performing, you can have massive issues with snapshots, that are not closed by backups.

Also snapshots are usually generated by backup apps, so 8 x VMs all being backed up, with snapshots all on a single LUN, make sure you have fast spindles, or SSDs!

Not seen any issues with vMotion, Backup and Performance - yes!
0
 
LVL 20

Author Comment

by:compdigit44
ID: 39991753
When you stated you have seen issues with performance, can you please explain
0
 
LVL 123
ID: 39991787
datastore performance, snapshot failure because of High disk I/O

8 VMs all writing to snapshots disks.

NOW, this being said, SSDs, vFlash can now help with all this I/O issues.
0
How Blockchain Is Impacting Every Industry

Blockchain expert Alex Tapscott talks to Acronis VP Frank Jablonski about this revolutionary technology and how it's making inroads into other industries and facets of everyday life.

 
LVL 20

Author Comment

by:compdigit44
ID: 39992100
Very interesting. So no problem with third part apps that use snapshot for backups.

How about storage vmotion?
0
 
LVL 123
ID: 39992108
You should not have ANY snapshots present before a Storage vMotion, so chaging working location, not very applicable!

As for Third Party applications, they will use the Storage API to control snapshot usage.
0
 
LVL 20

Author Comment

by:compdigit44
ID: 39992469
Great input as always Hancock!!!

As a general rule of thumb should all snapshots be remove before a storage migration? What would happen if a snapshot was present?
0
 
LVL 123

Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE^2) earned 2000 total points
ID: 39992548
Yes, all snapshots should be removed before a Storage vMotion.

Migration of powered-on virtual machines with snapshots is supported in ESXi 5.0 and later.

BUT, VMs running on a snapshot are a known performance issues, Migrating with Snapshots will take longer, and Best Practice (DELETE ALL before you start!).

Depending upon your storage system, you may end with a timeout, no corruption will occur.

A Storage vMotion either fails or passses with no corruption.
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

If we need to check who deleted a Virtual Machine from our vCenter. Looking this task in logs can be painful and spend lot of time, so the best way to check this is in the vCenter DB. Just connect to vCenter DB(default DB should be VCDB and using…
HOW TO: Install and Configure VMware vSphere Hypervisor 6.5 (ESXi 6.5), Step by Step Tutorial with screenshots. From Download, Checking Media, to Completed Installation.
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…
This Micro Tutorial walks you through using a remote console to access a server and install ESXi 5.1. This example is showing remote access and installation using a Dell server. The hypervisor is the very first component of your virtual infrastructu…
Suggested Courses

777 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