Why VM snapshots are affecting performance?

Posted by Samselvaprabu on Server Fault See other posts from Server Fault or by Samselvaprabu
Published on 2012-09-20T06:32:49Z Indexed on 2012/09/20 15:40 UTC
Read the original article Hit count: 390

Filed under:

Performance

|

vmware-esxi

|

virtual-machines

|

Snapshot

I read in one of the VMware KB article says that snapshots will directly proportional to VM performance.

But my team keep asking me how snapshots can affect performance.

I would like to give them solid reason behind the statement that snapshots are performance killers.

Can any one explain a little bit theory behind why actually snapshots are affecting the performance? Is it just because Disk I/O rate of hard disk would be slow?

© Server Fault or respective owner

Related posts about Performance

Improving VPN performance - stronger encryption = more performance?

as seen on Server Fault - Search for 'Server Fault'
I have a site-to-site VPN set up with two SonicWall's (a TZ170 and a Pro1260). It was suggested to me that turning off encryption (so the VPN is tunneling only) would improve performance. (I'm not concerned with security, because the VPN is running over a trusted line.) Using FTP and HTTP transfers… >>> More
Inaccurate performance counter timer values in Windows Performance Monitor

as seen on Stack Overflow - Search for 'Stack Overflow'
I am implementing instrumentation within an application and have encountered an issue where the value that is displayed in Windows Performance Monitor from a PerformanceCounter is incongruent with the value that is recorded. I am using a Stopwatch to record the duration of a method execution, then… >>> More
Excel-based Performance Reviews transformed into Web Application for Performance Management

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
HR TMS provides enterprise talent management solutions for healthcare, retail and corporate customers, focusing on performance management, compensation management and succession planning. As the competency of nurses and other healthcare workers is critical, the government, via the Joint Commission… >>> More
How to save a perfmon Performance Counter as a textfile (Reliability and Performance Monitor Version

as seen on Server Fault - Search for 'Server Fault'
Now the file gets saved as blg, but I would like a txt versin to import in Excel. >>> More
SQLAuthority News – A Successful Performance Tuning Seminar at Pune – Dec 4-5, 2010

as seen on SQL Authority - Search for 'SQL Authority'
This is report to my third of very successful seminar event on SQL Server Performance Tuning. SQL Server Performance Tuning Seminar in Colombo was oversubscribed with total of 35 attendees. You can read the details over here SQLAuthority News – SQL Server Performance Optimizations Seminar – Grand… >>> More

Related posts about vmware-esxi

VMWare ESXi, change the default path for a VM

as seen on Server Fault - Search for 'Server Fault'
For some reason VMWare ESXi has decided that one of my VMs is on a completely different path to the path it is actually on. So my VM is on /vmfs/volumes/long-guid-here/my-vm-name but when I try to open it I get the message "File < unspecified filename was not found." Which is not really surprising… >>> More
VMWare ESXi 3.5 Wake On Lan

as seen on Server Fault - Search for 'Server Fault'
Hello everyone! I am using VMWare ESXi 3.5 on my server, and I want to be able to remotely boot the server up. In the bios settings of the computer, I enabled Wake on Lan. I know usually with Windows XP and other Windows Operating Systems, you have to also enable wake on lan in the network card settings… >>> More
blu-ray archiving in vmware ESXi 4

as seen on Server Fault - Search for 'Server Fault'
Hi, I need some advice about using blu-ray writer for archiving data on vmware ESXi 4. At office we have IBM System x3400 Tower server with ESXi 4 hipervisor and OpenSuse and CentOS GNU/Linux system as guests. Will blu-ray writer work in this setup, and if it will is there any particular model you… >>> More
I need to get VMWare Server running inside of a VMWare ESXi virtual machine

as seen on Server Fault - Search for 'Server Fault'
Yes, I know running a virtual machine inside of a virtual machine is a bad idea. Yes, I know it will be very slow. However, our production system required VMs in VMWare server and I do not want to setup a real server for each of our developers for testing. I would like to be able to setup all of… >>> More
Eject disk on Mac Pro running VMWare ESXi

as seen on Server Fault - Search for 'Server Fault'
I'm almost embarrassed to ask this, but I'm stuck. I installed VMWare ESXi on a Mac Pro. It's working great! The problem is that you press F12 to eject the disk, and F12 is what you use to shutdown ESX. I can power down, open the case, pull out the CD drive and use a paper clip to force the drawer… >>> More