Hi there,
I recently started a new job in a company and this one has a VM structure that includes some hosts ESXi 6.0. One of these ESXi hosts is too much slow (really, really slow). Whenever I try to install a VM, this installation takes a long time to finish. For example: I've just tried to install a VM with Windows Server 2012. It started to install about one hour and a half time ago, and so far it didn't finish. Another example: A few days ago, I tried to deploy vCenter Server on this host, but it didn't work properly. The message was "A problem occurred during RPM installation: Timeout". Detail: This process took all day long. Others hosts don't have this problem.
What can I do to fix this problem?
Regards.
Two things you must have when deploying vCSA:
Without these two things the deployment will not succeed.
daphnissov
Thanks for answering. So, I just checked these configurations, and everything is Ok. Actually, deploying VCSA is one the issues that it is happening. Anything that I do is very, very, very slow. When I log on a Windows Server VM for example, when I click an icon, it takes a long before opening the program...all of vms in this host show up this behavior...it's weird...
Regards.
Then on top of those things you probably have poorly performing storage.
daphnissov,
I must agree with you. Well, how can I check my storage performance? Is there a way, a tool, whatever, that I can use?
Thanks in advance.
Performance charts, graphs, esxtop, etc
daphnissov,
Thank you. I'm checking datastores. But, I was wondering: why is it happening only on one host, meanwhile others hosts that using same datastores are ok?
Regards.
There are too many variables to know why. Some possibilities include incorrect multi-pathing on this host; suboptimal advanced settings, resource contention on this host, hardware/firmware issues depending on what the storage is, etc.
daphnissov,
I understand. I'm gonna figure it out. I'm trying troubleshooting that with tools that you mentioned. Thank you.
You never mentioned your hardware setup, but I bet the problem is there.
ESXi really hates raid cards that are missing batteries.
Hi Dave_the_Wave,
Thank you for helping me.
I'm sorry, I really didn't mention it. I have two hosts ESXi: Both are a Dell PowerEdge R720, 96GB memory, and the DataStores are attached in a VNX 5300 Storage. I have 4 DataStores, each one with 1000 GB space. The connectivity is via Fibre Channel.
So, in the last days, I've been performing some tests. I deployed a VM directly on the host (on the host where the problem occur). This deploy worked well, I didn't have any problem with this. Then, I tried to install the same VM, same configuration, but I did it in one of the datastores attached on the host (obs.: All of the datastores are attached on both hosts), and...surprise: this VM ran too much slowly. I am thinking this problem is occurring the communication between Host and Storage...but I don't know which problem it is...I'm trying discovering it...however, I don't have too much experience with physical adapters and storage...
Well, the prints below are about the vmkernel.log e vmkwarning.log. The host 224 is the host where the problem is occurring. The host 223 is ok. I think something wrong is happening with vmhba66 (in a comparison between Host223 e Host224) on the host 224:
Host 223 (Host ok):
Host 224 (Host with issues):
Best Regards.