Solved

ESXi Performance monitoring best practices (performance counter selection list)

Posted on 2010-11-23
8
1,508 Views
Last Modified: 2012-05-10
Hi All,

I received error when i try to analyze the speed or performance issue on my VM, when i try to turn on some of the counters I got the following error:


Is there any guideline or description on which counter shall i put into to analyze disk speed performance issue ?

Thanks

Kind Regards,
JJ
graphing.jpg
0
Comment
Question by:jjoz
8 Comments
 
LVL 11

Accepted Solution

by:
louisreeves earned 167 total points
ID: 34202410
I would say the issue you have is due to the version of ESX. ESXi is a free product. you are not going to get get very good monitoring without vcenter server. This is the full service application which includes windows counters to give you all the monitoring you will need. ESXi may have more functionality but you will need to buy liscenses. If I am mising anything about the question please let me know if I made any wrong assumptions about the question.

Happy Holidays~!
0
 
LVL 1

Author Comment

by:jjoz
ID: 34202421
hm.. but at least i can get one or two counters like the following:

does this looks like a problem or OK as normal load ?
diskGraphs.jpg
0
 
LVL 16

Assisted Solution

by:danm66
danm66 earned 167 total points
ID: 34206472
that is a general limitation within the GUI that you can't select more than 2 counters at any one time.  If you want to graphically view historical performance data, you can go to the console to collect the performance data with the vm-support command and use batch mode to dump it into a file that can be read with perfmon.  esxplot from http://labs.vmware.com/flings/esxplot will show the batch data, too, and doesn't take as long to load as perfmon, but I don't remember if you can view more than one measurement at a time.

The data is stored in the VC's database, if you are using vCenter, so it's also possible to find or create your own application that can pull the data out of the database.
0
Manage your data center from practically anywhere

The KN8164V features HD resolution of 1920 x 1200, FIPS 140-2 with level 1 security standards and virtual media transmissions at twice the speed. Built for reliability, the KN series provides local console and remote over IP access, ensuring 24/7 availability to all servers.

 
LVL 5

Assisted Solution

by:xylog
xylog earned 166 total points
ID: 34206759
In general, when looking at storage related issues, you want to look at IOPS. That is Input/Ouput operations Per Second. If you are saturating your disks capacity for IO operations you will see degraded performance. Specifically in a VM environment you need to consider how many guest instances are accessing your disk simultaneously. If I have 4 guest instances accessing a volume which is a 2-disk mirror set, I have 4 vms on two spindles. Each disk can handle a certain amount of IOPS so adding disks to a volume will give you more IO capacity.
0
 
LVL 1

Author Comment

by:jjoz
ID: 34210804
@xylog: how can I see the IOPS status in VCenter ? is it possible ?
0
 
LVL 5

Expert Comment

by:xylog
ID: 34215184
You already have it in your picture there, its called "Disk Commands Issued."
0
 
LVL 1

Author Comment

by:jjoz
ID: 34215190
(-_-)" thanks xylog, I didn't know it because it doesn't say anything about IOPS :-|
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Need To Expand VMware Disk Size 50 84
ESXi 5.5 SSH service keeps stopping 6 62
DNS server picking up wrong IP address of server 10 63
VMware Fail Over 5 57
Veeam Backup & Replication has added a new integration – Veeam Backup for Microsoft Office 365.  In this blog, we will discuss how you can benefit from Office 365 email backup with the Veeam’s new product and try to shed some light on the needs and …
When rebooting a vCenters 6.0 and try to connect using vSphere Client we get this issue "Invalid URL: The hostname could not parsed." When we get this error we need to do some changes in the vCenter advanced settings to fix the issue.
Teach the user how to edit .vmx files to add advanced configuration options Open vSphere Web Client: Edit Settings for a VM: Choose VM Options -> Advanced: Add Configuration Parameters:
This video shows you how to use a vSphere client to connect to your ESX host as the root user. Demonstrates the basic connection of bypassing certification set up. Demonstrates how to access the traditional view to begin managing your virtual mac…

828 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