issue with memory on a couple vms

Host are running esxi 5.1 and the past few days, 2 vms keep sending out alerts about memory stating:
State Transition: From Warning To Failed Time Of State Transition
These vms have been running just fine for a while and now the monitoring software keeps sending out these alerts.
I dont see anything in the vm host events either at the time of these alerts.
What do I need to check for this?
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Muzafar MominCommented:
Check the memory allocation done on both Host and VM`s, there are chances of over commitment in your case
Rodney BarnhardtServer AdministratorCommented:
If you check the performance of the VM in vSphere over the past day or so, does the performance indicate high memory utilization? If so, I would look at the times that happens and compare it with the event viewer inside the VM. There could be something going on that is causing it. I think that is the simplest step.
vmichAuthor Commented:
The times this has been happening is in the middle of the night when nothing is going on..
As far as over commitment, all of the vm host memory is showing 40% or less.
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Muzafar MominCommented:
in that case can you check if this VM`s are not impacted with Viruses ?

or any remote backup kind of job is schedule at that time
Seth SimmonsSr. Systems AdministratorCommented:
what monitoring software?
vmichAuthor Commented:
its a third party which monitors servers and such..
There is no problem with memory being over commited because I just checked and the one host has 196Gb and only 60gb is allocated to vms.
Seth SimmonsSr. Systems AdministratorCommented:
so this 3rd party product is sending those alerts
what is it supposed to be checking for?
vmichAuthor Commented:
system status like disk space, memory usage, cpu usage, etc..
Seth SimmonsSr. Systems AdministratorCommented:
i don't understand the failed part
what does it say as failed?  usually there are warning and critical thresholds
vmichAuthor Commented:
This is what the alerts say coming from the monitoring software. There is nothing in the events on the vm side that I see nor is there anything in the event viewer for the vm..
Service: Memory -
State Transition: From Warning To Failed Time Of State Transition: 2015-03-29 03:35:18 Monitored By xxxxxxxx
Rodney BarnhardtServer AdministratorCommented:
Are these VM's running a database application such as SQL? That can be a periodic memory hog, particularly when performing DB maintenance. If so, you could cap the amount of memory used by SQL which may alleviate the alerts.
vmichAuthor Commented:
2 of the servers do have sql on them and the other is a exch 2007 server which will be migrated to 2013 in the next few weeks.
Rodney BarnhardtServer AdministratorCommented:
How is the page file configured on these VM's? The reason I ask about if these were some type of DB apps is that the error you are seeing seems common when the page files are large and there are huge writes to the drives. Particularly, if they are slow type drives. If the page files are set large, I would try reducing them to a much smaller size.

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vmichAuthor Commented:
well the setting for all 3 vms for the page file is set to automatically manage page file size for all drives.
2 of them are at 8MB and 1 is at 14MB
vmichAuthor Commented:
sory that is 2 of them are at 8149Mb and the other 1 is at 14634MB
Rodney BarnhardtServer AdministratorCommented:
The recommendation I have seen in these cases is to set the page file from 512M to 1024. On the SQL boxes, you may want to limit the amount of RAM SQL can consume. Here is how to do it:

Depending on how much memory you have allocated to the VM would depend on how much is allocated to each VM. You would probably want to set it at least 1GB lower than the memory for the VM. You could make the changes on one as a test.
vmichAuthor Commented:
The issue ended up being settings for the third party monitoring software that needed to be tweaked so that it was not so sensitive..
vmichAuthor Commented:
change size of page files
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