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Triggered alerts after upgrading to 3.1

desmobrains
Beginner
Beginner

Hello,

 

Recently ISE cluster was upgraded to 3.1 from 2.6.

From that time and on, I am receiving the alerts below:

 

Insufficient Virtual Machine Resources

Details :

On node eacgnvaise03 average IO read performance directly from disk device is: 296 MB/Sec; which is less than the minimum requirement of 300 MB/Sec.  Please update VM hosting to support IO performance requirement.

Description :

Virtual Machine resources such as CPU, RAM, Disk Space, or IOPS are insufficient on this host

 

Alarm Name :
Insufficient Virtual Machine Resources
Details :
The required minimum of hard disk(s) total size is 300 GB; found only 0 GB on node eacgnvaise04
Description :
Virtual Machine resources such as CPU, RAM, Disk Space, or IOPS are insufficient on this host

Are they valid alerts or we do hit a bug? 

Ideas are welcomed.

 

Cheers,

Panos

6 Replies 6

marce1000
VIP Mentor VIP Mentor
VIP Mentor

 

 - You may confirm the disk test results with :  show tech | begin "disk IO perf"  , for the rest use the monitoring tools from the hypervisor to observe if sufficient resources can remain available for the particular ISE-VM , one might expect some more resource usage on  the new ISE version.

 M.

Hi,

I will give it a go and come back.

I just spotted that I get the alert around 03:00 in the morning. I had a look into vCenter and I see spikes on CPU and Disk at that moment...

 

  - Presumably  , short single-spike(s) may not need increasing CPU , but if observed several times a  day ,then the conclusion may be opposite.

 M.

Arne Bier
VIP Advisor VIP Advisor
VIP Advisor

The only minimum spec that changed between 2.6 and 3.1 is the minimum RAM for eval - it was 8GB and now it's 16GB.

How much RAM do you have for the VM? And how many CPUs allocated?

The disk IO thing is not an issue unless it's consistently low - 300MB/s is borderline and not that fast to be honest - the more throughput (and more IO) the better for the MNT node. Perhaps ISE is on an oversubscribed host - the ISE resources should not be oversubscribed!

Hi Arne,

 

thanks for coming back.

 

This is the allocation for each VM:

 

CPUs:16

RAM: 32GB

HDD: 1,23 TB

 

The host is not oversubscribed.

 

Cheers,

Panos